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Title: Spin Transport in Semiconductor heterostructures

Abstract

The focus of the research performed under this grant has been the investigation of spin transport in magnetic semiconductor heterostructures. The interest in these systems is motivated both by their intriguing physical properties, as the physical embodiment of a spin-polarized Fermi liquid, as well as by their potential applications as spintronics devices. In our work we have analyzed several different problems that affect the spin dynamics in single and bi-layer spin-polarized two-dimensional (2D) systems. The topics of interests ranged from the fundamental aspects of the electron-electron interactions, to collective spin and charge density excitations and spin transport in the presence of the spin-orbit coupling. The common denominator of these subjects is the impact at the macroscopic scale of the spin-dependent electron-electron interaction, which plays a much more subtle role than in unpolarized electron systems. Our calculations of several measurable parameters, such as the excitation frequencies of magneto-plasma modes, the spin mass, and the spin transresistivity, propose realistic theoretical estimates of the opposite-spin many-body effects, in particular opposite-spin correlations, that can be directly connected with experimental measurements.

Authors:
Publication Date:
Research Org.:
Clemson University
Sponsoring Org.:
USDOE
OSTI Identifier:
1005440
Report Number(s):
Final Report
219-2002560; TRN: US1102218
DOE Contract Number:  
FG02-01ER45897
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHARGE DENSITY; ELECTRON-ELECTRON INTERACTIONS; ELECTRONS; EXCITATION; FERMI GAS; MAGNETIC SEMICONDUCTORS; PHYSICAL PROPERTIES; SPIN; TRANSPORT

Citation Formats

Domnita Catalina Marinescu. Spin Transport in Semiconductor heterostructures. United States: N. p., 2011. Web. doi:10.2172/1005440.
Domnita Catalina Marinescu. Spin Transport in Semiconductor heterostructures. United States. doi:10.2172/1005440.
Domnita Catalina Marinescu. Tue . "Spin Transport in Semiconductor heterostructures". United States. doi:10.2172/1005440. https://www.osti.gov/servlets/purl/1005440.
@article{osti_1005440,
title = {Spin Transport in Semiconductor heterostructures},
author = {Domnita Catalina Marinescu},
abstractNote = {The focus of the research performed under this grant has been the investigation of spin transport in magnetic semiconductor heterostructures. The interest in these systems is motivated both by their intriguing physical properties, as the physical embodiment of a spin-polarized Fermi liquid, as well as by their potential applications as spintronics devices. In our work we have analyzed several different problems that affect the spin dynamics in single and bi-layer spin-polarized two-dimensional (2D) systems. The topics of interests ranged from the fundamental aspects of the electron-electron interactions, to collective spin and charge density excitations and spin transport in the presence of the spin-orbit coupling. The common denominator of these subjects is the impact at the macroscopic scale of the spin-dependent electron-electron interaction, which plays a much more subtle role than in unpolarized electron systems. Our calculations of several measurable parameters, such as the excitation frequencies of magneto-plasma modes, the spin mass, and the spin transresistivity, propose realistic theoretical estimates of the opposite-spin many-body effects, in particular opposite-spin correlations, that can be directly connected with experimental measurements.},
doi = {10.2172/1005440},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 22 00:00:00 EST 2011},
month = {Tue Feb 22 00:00:00 EST 2011}
}

Technical Report:

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