Open Access. Powered by Scholars. Published by Universities.^{®}
 Discipline

 Engineering (97)
 Electrical and Computer Engineering (81)
 Electrical and Electronics (77)
 Optics (54)
 Condensed Matter Physics (9)

 Astrophysics and Astronomy (8)
 Materials Science and Engineering (8)
 Nanoscience and Nanotechnology (7)
 Engineering Physics (7)
 Other Physics (6)
 Applied Mathematics (5)
 Mechanical Engineering (3)
 Numerical Analysis and Computation (3)
 Fluid Dynamics (3)
 Computational Engineering (2)
 Ordinary Differential Equations and Applied Dynamics (2)
 Environmental Sciences (2)
 Applied Mechanics (2)
 Computer Sciences (2)
 Numerical Analysis and Scientific Computing (2)
 Partial Differential Equations (2)
 Acoustics, Dynamics, and Controls (1)
 Catalysis and Reaction Engineering (1)
 Artificial Intelligence and Robotics (1)
 Applied Statistics (1)
 Biological Engineering (1)
 Biomedical Engineering and Bioengineering (1)
 Biological and Chemical Physics (1)
 Keyword

 Ferromagnetic resonance (6)
 INTERSTELLAR MATTER (6)
 CHEMICAL COMPOSITION (4)
 EXTINCTION (4)
 Magnetic anisotropy (4)

 Nanowires (3)
 Nanostructured materials (3)
 INTERSTELLAR EXTINCTION (3)
 Permalloy (3)
 SIGNAL TO NOISE RATIOS (3)
 Coercive force (3)
 ELECTRONIC STRUCTURE (2)
 MOLECULAR CLOUDS (2)
 PHOTOEMISSION (2)
 Magnetic hysteresis (2)
 Alumina (2)
 Nickel alloys (2)
 DIFFUSE RADIATION (2)
 Magnetic thin films (2)
 IRON (2)
 Magnetisation (2)
 Magnetic switching (2)
 Acoustics (2)
 Electrodeposition (2)
 Manganese alloys (2)
 CHROMIUM OXIDES (2)
 INTERSTELLAR GRAINS (2)
 Ferromagnetic materials (2)
 B STARS (2)
 Cobalt (2)
 Publication Year
 Publication
 Publication Type
 File Type
Articles 1  30 of 180
FullText Articles in Physics
Detection Of Whale Acoustic Signals In The Northern Gulf Of Mexico LadcGemm Database, Yingxue Gao
Detection Of Whale Acoustic Signals In The Northern Gulf Of Mexico LadcGemm Database, Yingxue Gao
University of New Orleans Theses and Dissertations
Lowpass Fourier filter, wavelet filter, as well as matched filter detection methods were used to detect baleen whale signals in northern Gulf of Mexico data collected by the Littoral Acoustic Demonstration Center (LADC) consortium. Some potential low frequency signals appeared on the matched filter output figure. The shape of the signals is in line with one of the typical signal shapes of fin whalesvertical downsweeps with 18stime interval. Another shape of the signals is in line with one of the call type shapes of Bryde's whalesdownsweeps with 7stime interval. A highpass Fourier filter was also used to find toothed ...
Exact Feedback Linearization Of Systems With StateSpace Modulation And Demodulation, Nikolaos I. Xiros Deng
Exact Feedback Linearization Of Systems With StateSpace Modulation And Demodulation, Nikolaos I. Xiros Deng
University of New Orleans Theses and Dissertations
The control theory of nonlinear systems has been receiving increasing attention in recent years, both for its technical importance as well as for its impact in various fields of application. In several key areas, such as aerospace, chemical and petrochemical industries, bioengineering, and robotics, a new practical application for this tool appears every day. System nonlinearity is characterized when at least one component or subsystem is nonlinear. Classical methods used in the study of linear systems, particularly superposition, are not usually applied to the nonlinear systems. It is necessary to use other methods to study the control of these systems ...
Magnetization Dynamics In Coupled Thin Film Systems, Daniel J. Adams
Magnetization Dynamics In Coupled Thin Film Systems, Daniel J. Adams
University of New Orleans Theses and Dissertations
A study is presented detailing experimental investigations of magnetization dynamics in nanostructured systems which are coupled magnetically. This work seeks to characterize the anisotropy of such systems through experimental techniques which probe microwave resonant absorption in the materials.
A custombuilt experimental setup, designed and assembled in our labs, is explained in detail. This setup allows for angulardependent ferromagnetic resonance (FMR) measurements in the sample plane through vector network analyzer spectroscopy and is adaptable to two different types of coplanar waveguides. This technique has proven effective for characterization of multiple types of magnetic systems, including multilayered structures as detailed here, with ...
Three Dimensional Passive Localization For Single Path Arrival With Unknown Starting Conditions, Britt Aguda
Three Dimensional Passive Localization For Single Path Arrival With Unknown Starting Conditions, Britt Aguda
University of New Orleans Theses and Dissertations
Introduced in this paper is the time difference of arrival (TDoA) conic approximation method (TCAM), a technique for passive localization in three dimensions with unknown starting conditions. The TDoA of a mutually detected signal across pairs of detectors is used to calculate the relative angle between the signal source and the center point of the separation between the detectors in the pair. The relative angle is calculated from the TDoA using a mathematical model called the TDoA approximation of the zenith angle (TAZA). The TAZA angle defines the opening angle of a conic region of probability that contains the signal ...
Solving Atomic Wave Functions Using Artificial Neural Networks, Gaurav Gyawali
Solving Atomic Wave Functions Using Artificial Neural Networks, Gaurav Gyawali
Senior Honors Theses
Carleo and Troyer [3] have recently pointed out the possibility of solving quantum manybody problems by using Artificial Neural Networks (ANN). Their work is based on minimizing a variational wave function to obtain the ground states for various spindependent systems. This work is primarily focused on developing efficient method using ANN to solve the ground state wave function for atomic systems. We have developed a theoretical groundwork to represent the wave function of a manyelectron atom by using artificial neural network while still preserving its antisymmetric property. By using the Metropolis algorithm, Variational Monte Carlo (VMC), and Stochastic Reconfiguration (SR ...
Study Of Magnetization Switching In Coupled Magnetic Nanostructured Systems Using A Tunnel Diode Oscillator, Mohammad Asif Khan
Study Of Magnetization Switching In Coupled Magnetic Nanostructured Systems Using A Tunnel Diode Oscillator, Mohammad Asif Khan
Senior Honors Theses
Static techniques to measure different magnetic properties of coupled magnetic nanostructured systems is researched and documented with an extensive analysis of the tunnel diode oscillator (TDO). The VSM was used to obtain the major hysteresis loop for the samples and the TDO was used to measure the magnetic susceptibility. The magnetic susceptibility was employed to conceive the static critical curve.
The thesis describes both equipments, VSM and TDO, that were used to obtain data for our experiments. Albeit a more comprehensive outlook on the TDO is provided. The theoretical functionality of TDO, previous successful applications for experiments, and the physical ...
Underwater Acoustic Signal Analysis Toolkit, Kirk Bienvenu Jr
Underwater Acoustic Signal Analysis Toolkit, Kirk Bienvenu Jr
University of New Orleans Theses and Dissertations
This project started early in the summer of 2016 when it became evident there was a need for an effective and efficient signal analysis toolkit for the Littoral Acoustic Demonstration Center Gulf Ecological Monitoring and Modeling (LADCGEMM) Research Consortium. LADCGEMM collected underwater acoustic data in the northern Gulf of Mexico during the summer of 2015 using Environmental Acoustic Recording Systems (EARS) buoys. Much of the visualization of data was handled through short scripts and executed through terminal commands, each time requiring the data to be loaded into memory and parameters to be fed through arguments. The vision was to develop ...
Automated Species Classification Methods For Passive Acoustic Monitoring Of Beaked Whales, John Lebien
Automated Species Classification Methods For Passive Acoustic Monitoring Of Beaked Whales, John Lebien
University of New Orleans Theses and Dissertations
The Littoral Acoustic Demonstration Center has collected passive acoustic monitoring data in the northern Gulf of Mexico since 2001. Recordings were made in 2007 near the Deepwater Horizon oil spill that provide a baseline for an extensive study of regional marine mammal populations in response to the disaster. Animal density estimates can be derived from detections of echolocation signals in the acoustic data. Beaked whales are of particular interest as they remain one of the least understood groups of marine mammals, and relatively few abundance estimates exist. Efficient methods for classifying detected echolocation transients are essential for mining longterm passive ...
An Application Of MMatrices To Preserve Bounded Positive Solutions To The Evolution Equations Of Biofilm Models, Richard S. Landry Jr.
An Application Of MMatrices To Preserve Bounded Positive Solutions To The Evolution Equations Of Biofilm Models, Richard S. Landry Jr.
University of New Orleans Theses and Dissertations
In this work, we design a linear, two step implicit finite difference method to approximate the solutions of a biological system that describes the interaction between a microbial colony and a surrounding substrate. Three separate models are analyzed, all of which can be described as systems of partial differential equations (PDE)s with nonlinear diffusion and reaction, where the biological colony grows and decays based on the substrate bioavailability. The systems under investigation are all complex models describing the dynamics of biological films. In view of the difficulties to calculate analytical solutions of the models, we design here a numerical ...
On The RambergOsgood StressStrain Model And Large Deformations Of Cantilever Beams, Ronald J. Giardina Jr
On The RambergOsgood StressStrain Model And Large Deformations Of Cantilever Beams, Ronald J. Giardina Jr
University of New Orleans Theses and Dissertations
In this thesis the RambergOsgood nonlinear model for describing the behavior of many diﬀerent materials is investigated. A brief overview of the model as it is currently used in the literature is undertaken and several misunderstandings and possible pitfalls in its application is pointed out, especially as it pertains to more recent approaches to ﬁnding solutions involving the model. There is an investigation of the displacement of a cantilever beam under a combined loading consisting of a distributed load across the entire length of the beam and a point load at its end and new solutions to this problem are ...
3d PostStack Seismic Inversion Using Global Optimization Techniques: Gulf Of Mexico Example, Elijah A. Adedeji
3d PostStack Seismic Inversion Using Global Optimization Techniques: Gulf Of Mexico Example, Elijah A. Adedeji
University of New Orleans Theses and Dissertations
Seismic inversion using a global optimization algorithm is a nonlinear, modeldriven process. It yields an optimal solution of the cost function – reflectivity/acoustic impedance, when prior information is sparse. The inversion result offers detailed interpretations of thin layers, internal stratigraphy, and lateral continuity and connectivity of sand bodies. This study compared two stable and robust global optimization techniques, Simulated Annealing (SA) and Basis Pursuit Inversion (BPI) as applied to poststack seismic data from the Gulf of Mexico.
Both methods use different routines and constraints to search for the minimum error energy function. Estimation of inversion parameters in SA is rigorous ...
Poroacuatics Under Brinkman's Model, David A. Rossmanith Jr.
Poroacuatics Under Brinkman's Model, David A. Rossmanith Jr.
University of New Orleans Theses and Dissertations
Through perturbation analysis, a study of the role of Brinkman viscosity in the propagation of finite amplitude harmonic waves is carried out. Interplay between various parameters, namely, frequency, Reynolds number and beta are investigated. For systems with physically realizable Reynolds numbers, departure from the Darcy Jordan model (DJM) is noted for high frequency signals. Low and high frequency limiting cases are discussed, and the physical parameters defining the acoustic propagation are obtained.
Through numerical analyses, the roles of Brinkman viscosity, the Darcy coefficient, and the coefficient of nonlinearity on the evolution of finite amplitude harmonic waves is stud ied. An ...
Ferromagnetic Resonance Studies Of Coupled Magnetic Systems, Daniel J. Adams
Ferromagnetic Resonance Studies Of Coupled Magnetic Systems, Daniel J. Adams
University of New Orleans Theses and Dissertations
The highfrequency properties of coupled magnetic systems have been investigated using vector network analyzer ferromagnetic resonance (VNAFMR) spectroscopy. SAF structures consist of two ferromagnetic layers separated by a nonmagnetic spacer, coupled through the indirect exchange interaction. The ferromagnetic layers of our samples were composed of FeCoB separated by a layer of Ru. The thickness of Ru was varied in the range of 8 to 18 Å among the samples studied. Antiferromagnetic coupling can be quickly identified by the major hysteresis loop (MHL).
A new way of displaying FMR data for these trilayer samples is presented which completely preserves the anisotropy ...
Automated Sea State Classification From Parameterization Of Survey Observations And WaveGenerated Displacement Data, Jason A. Teichman
Automated Sea State Classification From Parameterization Of Survey Observations And WaveGenerated Displacement Data, Jason A. Teichman
University of New Orleans Theses and Dissertations
Sea state is a subjective quantity whose accuracy depends on an observer’s ability to translate local wind waves into numerical scales. It provides an analytical tool for estimating the impact of the sea on data quality and operational safety. Tasks dependent on the characteristics of local sea surface conditions often require accurate and immediate assessment. An attempt to automate sea state classification using eleven years of ship motion and sea state observation data is made using parametric modeling of distributionbased confidence and tolerance intervals and a probabilistic model using sea state frequencies. Models utilizing distribution intervals are not able ...
Parameterized Spectral Bathymetric Roughness Using The Nonequispaced Fast Fourier Transform, David H. Fabre
Parameterized Spectral Bathymetric Roughness Using The Nonequispaced Fast Fourier Transform, David H. Fabre
University of New Orleans Theses and Dissertations
The ocean and acoustic modeling community has specifically asked for roughness from bathymetry. An effort has been undertaken to provide what can be thought of as the high frequency content of bathymetry. By contrast, the low frequency content of bathymetry is the set of contours. The twodimensional amplitude spectrum calculated with the nonequispaced fast Fourier transform (Kunis, 2006) is exploited as the statistic to provide several parameters of roughness following the method of Fox (1996). When an area is uniformly rough, it is termed isotropically rough. When an area exhibits lineation effects (like in a trough or a ridge line ...
Computation Of A Virtual Tide Corrector To Support Vertical Adjustment Of Autonomous Underwater Vehicle Multibeam Sonar Data, Lawrence H. Haselmaier
Computation Of A Virtual Tide Corrector To Support Vertical Adjustment Of Autonomous Underwater Vehicle Multibeam Sonar Data, Lawrence H. Haselmaier
University of New Orleans Theses and Dissertations
One challenge for Autonomous Underwater Vehicle (AUV) multibeam surveying is the limited ability to assess internal vertical agreement rapidly and reliably. Applying an external ellipsoid reference to AUV multibeam data would allow for field comparisons. A method is established to merge ellipsoid height (EH) data collected by a surface vessel in close proximity to the AUV. The method is demonstrated over multiple collection missions in two separate areas. Virtual tide corrector values are derived using EH data collected by a boat and a measured ellipsoid to chart datum separation distance. Those values are compared to measurements by a traditional tide ...
Developing And Testing An Anguilliform Robot Swimming With Theoretically High Hydrodynamic Efficiency, John B. Potts Iii
Developing And Testing An Anguilliform Robot Swimming With Theoretically High Hydrodynamic Efficiency, John B. Potts Iii
University of New Orleans Theses and Dissertations
An anguilliform swimming robot replicating an idealized motion is a complex marine vehicle necessitating both a theoretical and experimental analysis to completely understand its propulsion characteristics. The ideal anguilliform motion within is theorized to produce ``wakeless'' swimming (Vorus, 2011), a reactive swimming technique that produces thrust by accelerations of the added mass in the vicinity of the body. The net circulation for the unsteady motion is theorized to be eliminated.
The robot was designed to replicate the desired, theoretical motion by applying control theory methods. Independent joint control was used due to hardware limitations. The fluid velocity vectors in the ...
Numerical Solutions Of Generalized Burgers' Equations For Some Incompressible NonNewtonian Fluids, Yupeng Shu
Numerical Solutions Of Generalized Burgers' Equations For Some Incompressible NonNewtonian Fluids, Yupeng Shu
University of New Orleans Theses and Dissertations
The author presents some generalized Burgers' equations for incompressible and isothermal flow of viscous nonNewtonian fluids based on the Cross model, the Carreau model, and the PowerLaw model and some simple assumptions on the flows. The author numerically solves the traveling wave equations for the Cross model, the Carreau model, the PowerLaw model by using industrial data. The author proves existence and uniqueness of solutions to the traveling wave equations of each of the three models. The author also provides numerical estimates of the shock thickness as well as maximum strain $\varepsilon_{11}$ for each of the fluids.
Transverse Thermoelectric Properties Of Cu/Mg2si And Ni/Mg2si Artificially Anisotropic Materials, David J N Esch
Transverse Thermoelectric Properties Of Cu/Mg2si And Ni/Mg2si Artificially Anisotropic Materials, David J N Esch
University of New Orleans Theses and Dissertations
In this thesis the spark plasma sintering process (SPS) was used to press Mg_{2}Si powder with Ni and Cu slices into alternating layer stacks. These stacks, once cut at an angle, are an artificially anisotropic material. This anisotropy provides transverse thermoelectric properties to the sample. The transverse transport properties were measured along with the individual component transport properties. The SPS process provided malleable samples that gave a power factors of for the Ni/Mg_{2}Si stack and for the Cu/Mg_{2}Si stack. These fall short of the theoretical calculations which would give the power factors ...
Gas Detection Applications Of Vertically Aligned Metal Oxide Nanowire Arrays, Haiqiao Su
Gas Detection Applications Of Vertically Aligned Metal Oxide Nanowire Arrays, Haiqiao Su
University of New Orleans Theses and Dissertations
To build novel electronic noses for mimicking biological olfactory systems that consist of olfactory receptor arrays with large surface area and massivelydiversiﬁed chemical reactivity, three dimensional (3D) vertical aligned ZnO nanowire arrays were employed as active materials for gas detection. ZnO nanowire arrays share 3D structures similar to mammalian olfactory receptor arrays, with thousands of vertical nanowires providing a high reception area which can significantly enhance the sensors’ sensitivity. Meanwhile, with different material decorations (such as SnO_{2}, In_{2}O_{3}, WO_{3} and polymers), each array of nanowires can produce a distinguishable response for each separate analyte, which ...
Microwave Properties Of Magnetic Nanowires Arrays, Daniel Adams
Microwave Properties Of Magnetic Nanowires Arrays, Daniel Adams
Innovate UNO
This study focused on examining highfrequency properties of magnetic nanowire arrays. The microwave was produced by a Vector Network Analyzer (VNA) and transmitted through coplanar waveguides (CPW). The CPWs are 300 µm long with signal line width of 20 µm, ensuring minimum losses due to radiation. CPWs were fabricated through the photolithography process. The magnetic nanowires were fabricated through ebeam lithography on top of the CPW. The VNA was used to feed the CPW and measurements of the FMR absorption allowed us to understand the effect of interaction between nanowires on their dynamic properties.
UltraLow Temperature Measurements Of London Penetration Depth In Iron Selenide Telluride Superconductors, Andrei Diaconu
UltraLow Temperature Measurements Of London Penetration Depth In Iron Selenide Telluride Superconductors, Andrei Diaconu
University of New Orleans Theses and Dissertations
The newly discovered iron based superconductors have captivated the attention of the scientific community due to the unusual mechanism behind their superconductivity and their promise as the next generation high temperature superconductors. After a century of superconductor research, the physical mechanism behind high temperature superconductivity is still not understood. These new materials bring renewed hope in elucidating the pairing mechanism responsible with high temperature superconductors and achieving the ultimate goal of the field, room temperature superconductivity. Consequently, a deeper understanding of the intriguing properties of iron based materials is essential.
A great deal about the pairing mechanism of Cooper electron ...
Complex Reflection Coefficients Of P And SPolarized Light At The PseudoBrewster Angle Of A Dielectric–Conductor Interface, Rasheed M.A. Azzam
Complex Reflection Coefficients Of P And SPolarized Light At The PseudoBrewster Angle Of A Dielectric–Conductor Interface, Rasheed M.A. Azzam
Electrical Engineering Faculty Publications
The complex Fresnel reflection coefficients rp and rs of p and spolarized light and their ratio ρ = rp/rs at the pseudoBrewster angle (PBA) φpBof a dielectricconductor interface are evaluated for all possible values of the complex relative dielectric function Ε = Ε exp(jθ) = Εr  jΕi, Εi > 0 that share the same φpB. Complexplane trajectories of rp, rs, and ρ at the PBA are presented at discrete values of φpB from 5° to 85° in equal steps of 5° as θ is increased from 0° to 180°. It is shown that for φpB > 70° (highreflectance metals in the IR) rp ...
Design And Construction Of A Nernst Effect Measuring System, Warner E. Sevin
Design And Construction Of A Nernst Effect Measuring System, Warner E. Sevin
University of New Orleans Theses and Dissertations
An experimental Nernst effect measuring system is designed and constructed. The ability to measure the Nernst effect allows completion of a thermoelectric suite of measurements consisting of electrical conductivity, the Seebeck effect, the Hall effect, and the Nernst effect. This suite of measurements gives information about electron transport, carrier concentration, and electron scattering within a thermoelectric sample. Programs were designed in LabView to control the various instruments in the measuring system. Measurements of the Nernst effect were taken on two thermoelectric samples, bismuth nickel telluride and bismuth antimony telluride. These measurements were taken at both constant temperature and constant magnetic ...
Interferometric Synthetic Aperture Sonar Signal Processing For Autonomous Underwater Vehicles Operating Shallow Water, Patricia E. Giardina
Interferometric Synthetic Aperture Sonar Signal Processing For Autonomous Underwater Vehicles Operating Shallow Water, Patricia E. Giardina
University of New Orleans Theses and Dissertations
The goal of the research was to develop best practices for image signal processing method for InSAS systems for bathymetric height determination. Improvements over existing techniques comes from the fusion of ChirpScaling a phase preserving beamforming techniques to form a SAS image, an interferometric Vernier method to unwrap the phase; and confirming the direction of arrival with the MUltiple SIgnal Channel (MUSIC) estimation technique. The fusion of ChirpScaling, Vernier, and MUSIC lead to the stability in the bathymetric height measurement, and improvements in resolution. This method is computationally faster, and used less memory then existing techniques.
Characterization Of Magnetic Nanostructured Materials By First Order Reversal Curve Method, Denny R. Lenormand
Characterization Of Magnetic Nanostructured Materials By First Order Reversal Curve Method, Denny R. Lenormand
University of New Orleans Theses and Dissertations
The Interactions and magnetization reversal of Ni nanowire arrays and synthetic anitferromagnetic coupled thin film trilayers have been investigated through first order reversal curve (FORC) method. By using a quantitative analysis of the local interaction field profile distributions obtained from FORC, it has proven to be a powerful characterization tool that can reveal subtle features of magnetic interactions.
High Frequency Study Of Magnetic Nanostructures, Abhishek Srivastava
High Frequency Study Of Magnetic Nanostructures, Abhishek Srivastava
University of New Orleans Theses and Dissertations
The work in this thesis is divided in three parts. In part one we developed electrodeposition method of Nickel Nanowire in commercial AAO template in constant current (Galvanostatic) mode, further we tried to estimate the growth rate from theory, from saturation magnetization and direct measurement from SEM image.
In part two we focused on using the Vector Network Analyzer (VNA) to measure the Ferromagnetic Resonance (FMR))of various magnetic Nanowire arrays. We employed different measurement geometries using microstripline and coplanar waveguide as microwave transmission lines.
In part three our aim was to study the magnetic properties of complex ferromagnetic system ...
Electronic Transport In Thermoelectric Bismuth Telluride, Westly Nolting
Electronic Transport In Thermoelectric Bismuth Telluride, Westly Nolting
University of New Orleans Theses and Dissertations
An experimental investigation of the electronic transport properties of bismuth telluride nanocomposite materials is presented. The primary transport measurements are electrical conductivity, Seebeck coefficient and Hall effect. An experimental apparatus for measuring Hall effect and electrical conductivity was designed, constructed and tested. Seebeck coefficient measurements were performed on a commercial instrument. The Hall effect and Seebeck coefficient measurements are two of the most important tools for characterizing thermoelectric materials and are widely used in the semiconductor industry for determining carrier types, carrier concentration and mobility. Further, these transport parameters are used to determine the thermal to electrical conversion efficiency of ...
IiVi CoreShell Nanowires: Synthesis, Characterizations And Photovoltaic Applications, Kai Wang
IiVi CoreShell Nanowires: Synthesis, Characterizations And Photovoltaic Applications, Kai Wang
University of New Orleans Theses and Dissertations
The emergence of semiconducting nanowires as the new building blocks for photovoltaic (PV) devices has drawn considerable attention because of the great potential of achieving high efficiency and low cost. In special, nanowires with a coaxial structure, namely, coreshell structures have demonstrated significant advantages over other device configurations in terms of radial charge collection and cost reduction. In this dissertation, several coreshell nanowire structures, including ZnO/ZnSe, ZnO/ZnS, and CdSe/ZnTe, have been synthesized and the photovoltaic devices processed from a ZnO/ZnS coreshell nanowire array and a single CdSe/ZnTe coreshell nanowire have been demonstrated.
By combining the ...
Effect Of Disorder On Quantum Phase Transition In The Double Layered Ruthenates (Sr1−Xcax)3ru2o7effect Of Disorder On Quantum Phase Transition In The Double Layered Ruthenates (Sr1−Xcax)3ru2o7, Leonard Spinu, Zhe Qu, Jin Peng, Tijang Liu, David Forbes, Vkad Dobrosavljevic, Z Q. Mao
Effect Of Disorder On Quantum Phase Transition In The Double Layered Ruthenates (Sr1−Xcax)3ru2o7effect Of Disorder On Quantum Phase Transition In The Double Layered Ruthenates (Sr1−Xcax)3ru2o7, Leonard Spinu, Zhe Qu, Jin Peng, Tijang Liu, David Forbes, Vkad Dobrosavljevic, Z Q. Mao
Physics Faculty Publications
(Sr_{1−x}Ca_{x})_{3}Ru_{2}O_{7} is characterized by complex magnetic states, spanning from a longrange antiferromagnetically ordered state over an unusual heavymass nearly ferromagnetic (NFM) state to an itinerant metamagnetic (IMM) state. The NFM state, which occurs in the 0.4 > x > 0.08 composition range, freezes into a clusterspin glass (CSG) phase at low temperatures [Z. Qu et al., Phys. Rev. B 78, 180407(R) (2008)]. In this article, we present the scaling analyses of magnetization and the specific heat for (Sr_{1−x}Ca_{x})_{3}Ru_{2}O_{7} in the 0 ...