Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (468)
- Materials Science and Engineering (335)
- Atomic, Molecular and Optical Physics (303)
- Engineering Physics (242)
- Other Physics (197)
-
- Quantum Physics (155)
- Chemistry (131)
- Optics (122)
- Electrical and Computer Engineering (83)
- Nanoscience and Nanotechnology (81)
- Physical Chemistry (78)
- Statistical, Nonlinear, and Soft Matter Physics (77)
- Materials Chemistry (75)
- Biological and Chemical Physics (47)
- Semiconductor and Optical Materials (47)
- Other Materials Science and Engineering (42)
- Applied Mathematics (41)
- Engineering Science and Materials (36)
- Fluid Dynamics (32)
- Other Applied Mathematics (31)
- Polymer and Organic Materials (30)
- Chemical Engineering (25)
- Electromagnetics and Photonics (25)
- Computer Sciences (24)
- Metallurgy (22)
- Mechanical Engineering (19)
- Astrophysics and Astronomy (18)
- Institution
-
- University of Nebraska - Lincoln (506)
- Utah State University (296)
- Selected Works (146)
- William & Mary (103)
- City University of New York (CUNY) (94)
-
- Iowa State University (90)
- University of Tennessee, Knoxville (79)
- University of Kentucky (72)
- Western University (60)
- University of Massachusetts Amherst (56)
- SelectedWorks (39)
- Old Dominion University (38)
- University of Arkansas, Fayetteville (38)
- University of Nevada, Las Vegas (32)
- Clemson University (26)
- University of South Florida (26)
- Technological University Dublin (24)
- Chapman University (23)
- Claremont Colleges (21)
- The British University in Egypt (21)
- University of Texas at El Paso (20)
- University of Louisville (19)
- Wayne State University (19)
- West Virginia University (19)
- Purdue University (18)
- Dartmouth College (17)
- Louisiana State University (17)
- Santa Clara University (16)
- Virginia Commonwealth University (16)
- Washington University in St. Louis (16)
- Keyword
-
- Graphene (58)
- Magnetism (39)
- Physics (38)
- Superconductivity (36)
- Condensed matter (25)
-
- Ferroelectric (25)
- Semiconductors (25)
- Density functional theory (23)
- Thin films (23)
- Pure sciences (21)
- Spintronics (20)
- Photoluminescence (17)
- Electronic structure (16)
- Spectroscopy (16)
- Density Functional Theory (15)
- Antiferromagnetism (14)
- Magnetoresistance (14)
- Physics and Astronomy (14)
- Plasmonics (14)
- Polymer (14)
- Polymers (14)
- Ferromagnetism (13)
- Iridates (13)
- Quantum dots (13)
- Phonon modes (12)
- Spin-orbit coupling (12)
- 2D materials (11)
- Gallium oxide (11)
- Self-assembly (11)
- Silicon (11)
- Publication Year
- Publication
-
- Evgeny Tsymbal Publications (151)
- Doctoral Dissertations (126)
- Presentations (100)
- Dissertations, Theses, and Masters Projects (97)
- Posters (66)
-
- Nebraska Center for Materials and Nanoscience: Faculty Publications (61)
- Dissertations, Theses, and Capstone Projects (60)
- Electronic Thesis and Dissertation Repository (59)
- Duane D. Johnson (55)
- Conference Proceedings (46)
- Stephen Ducharme Publications (41)
- Journal Articles (40)
- Department of Physics and Astronomy: Faculty Publications (38)
- Graduate Theses and Dissertations (36)
- Theses and Dissertations--Physics and Astronomy (36)
- Allen Andersen (35)
- Electronic Theses and Dissertations (35)
- Senior Theses and Projects (35)
- Department of Physics and Astronomy: Dissertations, Theses, and Student Research (34)
- Physics and Astronomy Faculty Publications (32)
- Publications and Research (32)
- Theses and Dissertations (32)
- Xiaoshan Xu Papers (32)
- Robert Streubel Papers (31)
- Peter Dowben Publications (30)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (30)
- Alexander H. King (28)
- Physics (28)
- USF Tampa Graduate Theses and Dissertations (25)
- Mathematics, Physics, and Computer Science Faculty Articles and Research (21)
- Publication Type
Articles 31 - 60 of 2316
Full-Text Articles in Condensed Matter Physics
Nonlinear Charge And Spin Currents In Non-Centrosymmetric Electron Systems, Aniruddha Pan
Nonlinear Charge And Spin Currents In Non-Centrosymmetric Electron Systems, Aniruddha Pan
All Dissertations
In this thesis, we discuss the existence of spin and charge currents in systems with broken spin inversion symmetry proportional to the magnitude square of the driving electric and thermal fields. This outcome is predicated on symmetry considerations in the momentum space, whereby the product between the current operator and the out-of-equilibrium distribution function has to be even.
First, we derive the second-order correction to the particle distribution function $\delta f^{(2)}$ in a semi-classical approximation, considering the local change in the equilibrium distribution function caused by external fields. Our approach departs significantly from the previous theory where $\delta f^{(2)}$ is …
Super-Resolution Microscopy With Color Centers In Diamond, Forrest A. Hubert
Super-Resolution Microscopy With Color Centers In Diamond, Forrest A. Hubert
Optical Science and Engineering ETDs
This dissertation explores the development and application of diamond color centers, specifically the silicon-vacancy (SiV) and nitrogen-vacancy (NV) centers, in super-resolution microscopy and magnetic imaging techniques. It demonstrates the potential of SiV centers as photostable fluorophores in stimulated emission depletion (STED) microscopy, with a resolution of approximately 90 nm. The research also presents a method for nanoscale magnetic microscopy using NV centers by combining charge state depletion (CSD) microscopy with optically detected magnetic resonance (ODMR) to image magnetic fields produced by 30 nm iron-oxide nanoparticles. The individual magnetic feature width reaches ~100 nm while resolving magnetic field patterns from nanoparticles …
Two-Dimensional Crystal Phases Of Graphene Monoxide & Interaction Of Lithium With Graphene Monoxide, Danylo Radevych
Two-Dimensional Crystal Phases Of Graphene Monoxide & Interaction Of Lithium With Graphene Monoxide, Danylo Radevych
Theses and Dissertations
This work explores the possible existence, properties, and potential applications of different polytypes of graphene monoxide (GmO) - two-dimensional crystalline monolayers composed of equal numbers of O and C atoms. In addition to previously experimentally discovered and theoretically modeled α phase, prediction and discovery of the second phase - β-GmO - is reported along with evaluation of six other possible phases. Structural parameters, electronic and mechanical properties of all the phases, including α-GmO, are determined using density functional calculations and compared. It is suggested that multiple phases of GmO can co-exist in the same composite, and developing a synthesis process …
Construction Of Zinc Oxide And Magnesium Oxide Heterostructures By Atomic Layer Deposition, Netra Sharma
Construction Of Zinc Oxide And Magnesium Oxide Heterostructures By Atomic Layer Deposition, Netra Sharma
Theses and Dissertations
Zinc oxide (ZnO) has gained wide technological interest due to its direct bandgap of ~3.37 eV and high exciton binding energy of ~60 meV and has exhibited promise for numerous electronics and opto-electronics applications. ZnO can also be alloyed with materials like magnesium oxide (MgO) to tailor the bandgap. Such heterostructures (Zn, Mg)O can be used in optoelectronic devices like quantum well lasers, photodetectors, etc.In this work, we studied the physical properties of zinc oxide (ZnO), magnesium oxide (MgO) and the heterostructures of zinc and magnesium oxide (Zn,Mg)O grown by atomic layer deposition (ALD) using a homemade viscous flow type …
Intercalation And High-Pressure Investigations Of Black Arsenic Phosphorus: Unraveling Material Transformations., Dinushika Vithanage
Intercalation And High-Pressure Investigations Of Black Arsenic Phosphorus: Unraveling Material Transformations., Dinushika Vithanage
Electronic Theses and Dissertations
Black arsenic phosphorus (b-AsyP1-y) alloys have emerged as intriguing materials within the realm of two-dimensional (2D) materials, following the discovery of black phosphorus (BP). These alloys possess capability to overcome major limitations of BP and exhibit potential for tunability and enhancement of properties making them promising materials for a wide range of applications, including lithium-ion batteries. Inspired by the intriguing findings obtained for BP, this research focuses on understanding the structural modifications that can be achieved in b-AsyP1-y alloys through the application of intercalation and high pressure. The initial phase of our investigation …
Growth And Emergent Functionalities Of Oxide Thin Films Utilizing Interface Engineering, Detian Yang
Growth And Emergent Functionalities Of Oxide Thin Films Utilizing Interface Engineering, Detian Yang
Department of Physics and Astronomy: Dissertations, Theses, and Student Research
Complex oxide interfaces have offered intriguing novel emergent phenomena and multiple functionalities through interfacial reconstructions of spin, orbital, charge, and lattice degrees of freedom. Interface engineering via manipulating interfacial interaction, defects and multiple interfacial quantum charges and orders constitutes the essential method and technique to achieve desired functionalities in oxide heterostructures. In this thesis, shown are two examples of utilizing interfacial reconstruction and interfacial strain engineering to achieve intrinsic exchange bias and realize epitaxial growth of mixed-valence hexagonal manganite thin films, respectively.
Firstly, we demonstrated intrinsic exchange bias induced by interfacial reconstruction in NixCoyFe3-x-yO …
Exploring Skyrmions Dynamics And Structure Using Neutron Scattering, W-L-Namila Chandula Liyanage
Exploring Skyrmions Dynamics And Structure Using Neutron Scattering, W-L-Namila Chandula Liyanage
Doctoral Dissertations
Magnetic skyrmions are topologically protected chiral spin textures with great potential for next-generation consumer technologies. These magnetic structures can be described as spins continuously wrapping into a closed coplanar loop, featuring a core and fencing perimeter with opposite out-of-plane orientations. While conventional depictions of magnetic skyrmions use a two-dimensional projection, recent research underscores the importance of their three-dimensional structure in determining their topology and stability. Magnetic skyrmions typically emerge just below the curie temperature of a magnetic material, creating what is known as a skyrmion pocket. In most materials the stability pocket is at low temperatures and finite fields, however …
Functionalized Go Nanoplatelets With Folic Acid As A Novel Material For Boosting Humidity Sensing Of Chitosan/Pva Nanocomposites For Active Food Packaging, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Enhanced Acousto-Optic Properties Of Silicon Carbide Based Layered Structure, Namrata Dewan Soni
Enhanced Acousto-Optic Properties Of Silicon Carbide Based Layered Structure, Namrata Dewan Soni
Al-Bahir Journal for Engineering and Pure Sciences
This study investigates the feasibility of using silicon carbide-based layered surface acoustic wave (SAW) devices in acousto-optic applications. The acousto-optic properties of the temperature-stable layered structure TeO3/SiC/128oY-X LiNbO3 are investigated through theoretical analysis. This analysis includes the evaluation of key parameters such as the overlap integral, figure of merit, and diffraction efficiency. The SAW propagation characteristics and field profiles required for these calculations are obtained using SAW software. Results show that the layered structure has high diffraction efficiency of nearly 96% and a promising value for the acousto-optic figure of merit, indicating potential use in low driving power acousto-optic devices. …
Thermal, Magnetic, And Electrical Properties Of Thin Films And Nanostructures: From Magnetic Insulators To Organic Thermoelectrics, Michael J. M. Roos
Thermal, Magnetic, And Electrical Properties Of Thin Films And Nanostructures: From Magnetic Insulators To Organic Thermoelectrics, Michael J. M. Roos
Electronic Theses and Dissertations
Modern fabrication and growth techniques allow for the development of increasingly smaller and more complex solid state structures, the characterization of which require highly specialized measurement platforms. In this dissertation I present the development of techniques and instrumentation used in magnetic, thermal, and electrical property measurements of thin films and nanostructures. The understanding of trapped-flux induced artifacts in SQUID magnetometry of large paramagnetic substrates allows for the resolution of increasingly small moments. Using these methods, the antiferromagnetic coupling of the interface between a Y3Fe5O12 film and Gd3Ga5O12substrate is quantitatively …
The Study Of Excitons In 2d Novel Materials And Their Van Der Waals Heterostructures In The Magnetic Field, Anastasia Spiridonova
The Study Of Excitons In 2d Novel Materials And Their Van Der Waals Heterostructures In The Magnetic Field, Anastasia Spiridonova
Dissertations, Theses, and Capstone Projects
This research focuses on the direct and indirect excitons in Rydberg states in monolayers, bilayers, and van der Waals heterostructures composed of 2D semiconductors in the presence of the external magnetic field. In our work, we report binding energies of direct and indirect excitons in Rydberg states, the energy contribution from the magnetic field to the binding energies of magnetoexcitons, and diamagnetic coefficients (DMCs) of magnetoexcitons.
We study isotropic materials: transition metal dichalcogenides, TMDCs (WSe2, WS2, MoSe2, MoS2), and Xenes (silicene, germanene, stanene), and anisotropic materials: phosphorene and transition metal trichalcogenides, TMTCs …
Design And Implementation Of Montmorillonite Clay-Based Catalyst For Carbon Nanotube Synthesizing, Mohamed Morsy
Design And Implementation Of Montmorillonite Clay-Based Catalyst For Carbon Nanotube Synthesizing, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Synthesis And Functional Properties Of La2fecro6 Based Nanostructures, Mohamed Morsy
Synthesis And Functional Properties Of La2fecro6 Based Nanostructures, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Effective Nanomembranes From Chitosan/Pva Blend Decorated Graphene Oxide With Gum Rosin And Silver Nanoparticles For Removal Of Heavy Metals And Microbes From Water Resources, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.
Effective Non-Hermiticity And Topology In Markovian Quadratic Bosonic Dynamics, Vincent Paul Flynn
Effective Non-Hermiticity And Topology In Markovian Quadratic Bosonic Dynamics, Vincent Paul Flynn
Dartmouth College Ph.D Dissertations
Recently, there has been an explosion of interest in re-imagining many-body quantum phenomena beyond equilibrium. One such effort has extended the symmetry-protected topological (SPT) phase classification of non-interacting fermions to driven and dissipative settings, uncovering novel topological phenomena that are not known to exist in equilibrium which may have wide-ranging applications in quantum science. Similar physics in non-interacting bosonic systems has remained elusive. Even at equilibrium, an "effective non-Hermiticity" intrinsic to bosonic Hamiltonians poses theoretical challenges. While this non-Hermiticity has been acknowledged, its implications have not been explored in-depth. Beyond this dynamical peculiarity, major roadblocks have arisen in the search …
Origin And Structure Of The First Sharp Diffraction Peak Of Amorphous Solids, Devilal Dahal
Origin And Structure Of The First Sharp Diffraction Peak Of Amorphous Solids, Devilal Dahal
Dissertations
Several explanations have been reported in the literature about the origin of extended-range oscillations (EROs) in the atomic pair-correlation function of amorphous materials. Although the radial ordering beyond the short-range order of about 5 Å has been extensively studied in amorphous materials, the exact nature of the radial ordering beyond a nanometer is still not resolved. This dissertation address this problem and explains the nature of the EROs by using high-quality models of amorphous silicon (a-Si) obtained from Monte Carlo and Molecular Dynamics simulations. The extended-range ordering in a-Si is examined through radial oscillations on the length …
Influence Of Platinum Nanoparticles On Ionic Transport And Hydrogen Reactivity Of Yttria-Stabilized Zirconia Thin Films, Firas Mahyob
Influence Of Platinum Nanoparticles On Ionic Transport And Hydrogen Reactivity Of Yttria-Stabilized Zirconia Thin Films, Firas Mahyob
Electronic Theses and Dissertations
Yttria-stabilized zirconia (YSZ) is a widely used ceramic material in solid oxide fuel cells, oxygen sensors, and sensing applications due to its high ionic conductivity, chemical inertness, and thermal stability. YSZ is promising active coating for use in miniaturized harsh environment wireless surface acoustic sensors to monitor gases such as H2. Adding catalytic Pt nanoparticles can enhance gas reactivity and lead to associated film conductivity changes.
In this work, thin films with an (8% Y2O3 - 92% ZrO2) composition were deposited onto piezoelectric langasite substrates using RF magnetron sputtering in Ar:O2 - …
Domain Wall Saddle Point Morphology In Ferroelectric Triglycine Sulfate, C. J. Mccluskey, A. Kumar, Alexei Gruverman, I. Luk’Yanchuk, J. M. Gregg
Domain Wall Saddle Point Morphology In Ferroelectric Triglycine Sulfate, C. J. Mccluskey, A. Kumar, Alexei Gruverman, I. Luk’Yanchuk, J. M. Gregg
Alexei Gruverman Publications
Ferroelectric domain walls, across which there is a divergence in polarization, usually have enhanced electrical conductivity relative to bulk. However, in lead germanate, head-to-head and tail-to-tail walls are electrically insulating. Recent studies have shown that this is because, when oppositely oriented domains meet, polar divergence is obviated by a combination of domain bifurcation and suspected local dipolar rotation. To explore the uniqueness, or otherwise, of this microstructure, we have used tomographic piezoresponse force microscopy to map three-dimensional domain morphologies in another uniaxial ferroelectric system: triglycine sulfate. This mapping reveals an abundance of domain wall saddle points, which are characteristic of …
Magnetic Properties Of Polycrystalline Spinel Oxides From Solid State Reaction, Camden Olds
Magnetic Properties Of Polycrystalline Spinel Oxides From Solid State Reaction, Camden Olds
Honors Theses
Spinel crystal materials of nickel, cobalt, and iron oxides have seen abundant research for their strong conductivity, ferromagnetic and ferroelectric properties, and their catalytic uses. These can be synthesized by a number of means. This project explores the use of the solid state synthesis method, which benefits from simplicity, of this family of materials, looking for interesting phase shift lines in the triangle between of varying compositions of these three metals.
Nickel cobaltite and other related spinels were synthesized from two different solid state approaches and characterized using XRD and SQUID magnetometry. The range 0.5-0.6 of molar ratios of nickel …
Methods For Preparing And Characterizing Granular Materials For Electron Yield Measurements, Tom Keaton
Methods For Preparing And Characterizing Granular Materials For Electron Yield Measurements, Tom Keaton
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
This work presents a systematic study on sample preparation methods and accuracy of electron yield (EY) measurements of highly insulating, granular materials. EY measurements of highly insulating materials, especially those with high EY, are challenging due to the effects of sample charging even for very low fluence electron probe beams. EY measurements of particulates are complicated by: (i) roughness effects from particulate size, shape, coverage, and compactness; (ii) particle adhesion; (iii) substrate contributions; and (iv) electrostatic repulsion and potential barriers from charged particles and substrates. Numerous methods were explored to rigidly affix particles on conducting substrates at varying coverages for …
Computational Modeling Of Superconductivity From The Set Of Time-Dependent Ginzburg-Landau Equations For Advancements In Theory And Applications, Iris Mowgood
Computational and Data Sciences (PhD) Dissertations
A full review of the research conducted and published during my PhD studies in Computational and Data Sciences at Chapman University, under the advisement of Dr. Armen Gulian, are presented. Using the set of time-dependent Ginzburg-Landau (TDGL) equations with inclusion of the interference current and the non-equilibrium phonon term, we modeled the dynamics of superconductors in various theory revealing states and practical purposes. A review of the history and phenomenon of superconductivity, including modern applications, is introduced. The Josephson effect and associated Josephson junction are discussed for comparison to our analogous results with the 1-D superconducting wire. The mathematics of …
Response Of The Isothermal Mode Grüneisen Tensor Across Phase Boundaries, Jasmine K. Hinton
Response Of The Isothermal Mode Grüneisen Tensor Across Phase Boundaries, Jasmine K. Hinton
UNLV Theses, Dissertations, Professional Papers, and Capstones
The assumptions for the 1912 Grüneisen parameter are reviewed, particularly in the cases of anisotropy, high temperatures, and across phase boundaries. Two main case studies are shown: β-Sn, and Cd. The main techniques of this work involve resistively heated diamond anvil cells with both optical Raman spectroscopy and x-ray diffraction. It is found in Sn that the isothermal mode Grüneisen tensor along increasing isotherms diverges from the single-valued temperature aggregate at the onset of melt, and this is proposed to use as a method of exploring melt phase boundaries in other systems. This method is examined once again on another …
Stoichiometric Determination Of Hydride Materials At Extreme Conditions, Gregory Alexander Smith
Stoichiometric Determination Of Hydride Materials At Extreme Conditions, Gregory Alexander Smith
UNLV Theses, Dissertations, Professional Papers, and Capstones
Hydrogen was predicted to be a high-temperature superconductor at near-megabar conditions in 1968,[1] but only recently was been experimentally observed.[2] This is due to the extraneous metrological constraint of requiring 5 megabars of pressure to stabilize. A more practical approach for synthesis of high-temperature superconductors has been pro-posed through the use of hydride compounds. Recently, a surge of rare earth hydrides have achieved critical superconducting transition temperatures (T_C ) close to room temperature.[3, 4, 5, 6] However, due to limitations of the necessary instrumentation to achieve megabar pressures, many techniques traditionally used to measure stoichiometry are unavailable.Three works presented in …
Super P-Sulfur Cathodes For Quasi-Solid-State Lithium-Sulfur-Batteries., Milinda Bharatha Kalutara Koralalage
Super P-Sulfur Cathodes For Quasi-Solid-State Lithium-Sulfur-Batteries., Milinda Bharatha Kalutara Koralalage
Electronic Theses and Dissertations
Lithium-Sulfur (Li-S) batteries have become a promising candidate to meet the current energy storage demand, with its natural abundance of materials, high theoretical capacity of 1672 mAhg-1, high energy density of 2600 Whkg-1, low cost and lower environmental impact. Sulfide based solid state electrolytes (SSEs) have received greater attention due to their higher ionic conductivity, compatible interface with sulfur-based cathodes, and lower grain boundary resistance. However, the interface between SSEs and cathodes has become a challenge in all solid-state Li-S batteries due to the rigidity of the participating surfaces. A hybrid electrolyte containing SSE coupled with a small amount of …
Apparatus And Instrumentation Design For Investigation Of Surface Impact Effects On Superconductivity, Austin Back
Apparatus And Instrumentation Design For Investigation Of Surface Impact Effects On Superconductivity, Austin Back
All Theses
The effects of ion irradiation on the physical properties of materials make EBITs an invaluable tool for many scientific and engineering fields. Many experiments rely on the use of these lab setups to test for device reliability, explore surface physics phenomena, and replicate the environment for many physical systems that are not readily accessible. We seek to extend the capabilities of these experiments using the CUEBIT and a new sample holder installed in section 3.
This thesis begins by presenting an overview of the CUEBIT and the basic operations of the equipment. This is followed by a brief explanation of …
Exploring Ferroelectric Phenomena In Batio3, Linbo3, And Liznsb: From Extended Oxygen Vacancies To Tri-Stable Polarization And Giant Hyperferroelectricity, Shaohui Qiu
Graduate Theses and Dissertations
This dissertation presents three projects that investigate the complex phenomena of ferroelectricity under different conditions in BaTiO3, LiNbO3, and LiZnSb using first-principles density functional calculations. Extended defects in ferroelectric solids play a crucial role in reducing the lifetime and performance of ferroelectric devices by causing fatigue, domain pinning, and aging. Thus, understanding their impact is of critical importance for the development of reliable and high-performance ferroelectric devices. In addition, hyperferroelectricity is an intriguing phenomenon that has attracted much attention in recent years. Despite the existence of depolarization field, spontaneous polarization persists under an open-circuit boundary condition (OCBC), making hyperferroelectric materials …
Understanding And Tuning Magnetism In Van Der Waals Magnetic Compounds, Rabindra Basnet
Understanding And Tuning Magnetism In Van Der Waals Magnetic Compounds, Rabindra Basnet
Graduate Theses and Dissertations
The recently discovered two-dimensional (2D) magnetism has attracted intensive attention due to possible magnetic phenomenon arising from 2D magnetism and their promising potential for spintronics applications. The advances in 2D magnetism have motivated the study of layered magnetic materials, and further enhanced our ability to tune their magnetic properties. Among various layered magnets, tunable magnetism has been widely investigated in metal thiophosphates MPX3. It is a class of magnetic van der Waals (vdW) materials with antiferromagnetic ordering persisting down to atomically thin limit. Their magnetism originates from the localized moments due to 3d electrons in transition metal ions. So, their …
Fabrication Of Black Phosphorus Terahertz Photoconductive Antennas, Nathan Tanner Sawyers
Fabrication Of Black Phosphorus Terahertz Photoconductive Antennas, Nathan Tanner Sawyers
Physics Undergraduate Honors Theses
Terahertz (THz) photoconductive antennas (PCAs) using 40nm thin-film flakes of black phosphorus (BP) and hexagonal boron nitride (hBN) have been shown computationally to be capable of THz emission comparable to those based on GaAs [2]. In this paper, I briefly describe the scientific and practical interest in THz emissions and explain what warrants research into black phosphorus as a photoconductive semiconductor in THz devices. Furthermore, I outline the basic principle of how these antennas work and mention alternative designs produced by other researchers in the past. Finally, I summarize the fabrication process of these antennas, as well as the measurements …
Modelling Cell Population Growth, Mahmood Mazarei
Modelling Cell Population Growth, Mahmood Mazarei
Electronic Thesis and Dissertation Repository
The growth of biological matter, e.g., tumor invasion, depends on various factors, mainly the tissue’s mechanical properties, implying elasticity, stiffness, or apparent viscosity. These properties are impacted by the characteristics of the tissue’s extracellular matrix and constituent cells, including, but not limited to, cell membrane stiffness, cell cytoskeleton mechanical properties, and the intensity and distribution of focal adhesions over the cell membrane. To compute and study the mechanical properties of tissues during growth and confluency, a theoretical and computational framework, called CellSim3D, was developed in our group based on a three-dimensional kinetic division model.
In this work, CellSim3D is …
Tailoring The Polyurethane Foam/Rgo/Batio3 Pressure Sensor For Human Activities, Mohamed Morsy
Tailoring The Polyurethane Foam/Rgo/Batio3 Pressure Sensor For Human Activities, Mohamed Morsy
Nanotechnology Research Centre
No abstract provided.