skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Controlling the magnetic susceptibility in an artificial elliptical quantum ring by magnetic flux and external Rashba effect

Abstract

Magnetic susceptibility is investigated in a man-made elliptical quantum ring in the presence of Rashba spin-orbit interactions and the magnetic flux. It is shown that magnetic susceptibility as a function of magnetic flux changes between negative and positive signs periodically. The periodicity of the Aharonov-Bohm oscillations depends on the geometry of the region where magnetic field is applied, the eccentricity, and number of sites in each chain ring (the elliptical ring is composed of chain rings). The magnetic susceptibility sign can be reversed by tuning the Rashba spin-orbit strength as well. Both the magnetic susceptibility strength and sign can be controlled via external spin-orbit interactions, which can be exploited in spintronics and nanoelectronics.

Authors:
;  [1]
  1. School of Physics, Iran University of Science and Technology, 16846 Tehran (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22399314
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AHARONOV-BOHM EFFECT; L-S COUPLING; MAGNETIC FIELDS; MAGNETIC FLUX; MAGNETIC SUSCEPTIBILITY; NANOELECTRONICS; ORBITS; OSCILLATIONS; PERIODICITY; RINGS; SPIN

Citation Formats

Omidi, Mahboubeh, E-mail: mah-omidi@iust.ac.ir, and Faizabadi, Edris. Controlling the magnetic susceptibility in an artificial elliptical quantum ring by magnetic flux and external Rashba effect. United States: N. p., 2015. Web. doi:10.1063/1.4915341.
Omidi, Mahboubeh, E-mail: mah-omidi@iust.ac.ir, & Faizabadi, Edris. Controlling the magnetic susceptibility in an artificial elliptical quantum ring by magnetic flux and external Rashba effect. United States. doi:10.1063/1.4915341.
Omidi, Mahboubeh, E-mail: mah-omidi@iust.ac.ir, and Faizabadi, Edris. Sat . "Controlling the magnetic susceptibility in an artificial elliptical quantum ring by magnetic flux and external Rashba effect". United States. doi:10.1063/1.4915341.
@article{osti_22399314,
title = {Controlling the magnetic susceptibility in an artificial elliptical quantum ring by magnetic flux and external Rashba effect},
author = {Omidi, Mahboubeh, E-mail: mah-omidi@iust.ac.ir and Faizabadi, Edris},
abstractNote = {Magnetic susceptibility is investigated in a man-made elliptical quantum ring in the presence of Rashba spin-orbit interactions and the magnetic flux. It is shown that magnetic susceptibility as a function of magnetic flux changes between negative and positive signs periodically. The periodicity of the Aharonov-Bohm oscillations depends on the geometry of the region where magnetic field is applied, the eccentricity, and number of sites in each chain ring (the elliptical ring is composed of chain rings). The magnetic susceptibility sign can be reversed by tuning the Rashba spin-orbit strength as well. Both the magnetic susceptibility strength and sign can be controlled via external spin-orbit interactions, which can be exploited in spintronics and nanoelectronics.},
doi = {10.1063/1.4915341},
journal = {Journal of Applied Physics},
number = 11,
volume = 117,
place = {United States},
year = {Sat Mar 21 00:00:00 EDT 2015},
month = {Sat Mar 21 00:00:00 EDT 2015}
}