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Full-Text Articles in Quantum 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 …
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 …