Exchange interaction and rashba spin splitting effects in electron spin resonance in narrow-gap quantum wells

We report a study of electron spin resonance (ESR) in a perpendicular magnetic field in n-type narrow-gap quantum well (QW) heterostructures. Using the Hartree-Fock approximation, based on the 8×8 k⋅p Hamiltonian, the many-body corrections to the ESR energy are found to be nonzero in symmetric and a...

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Bibliographic Details
Main Authors: Krishtopenko, S S, Malyzhenkov, A V, Kalinin, K P, Ikonnikov, A V, Maremyanin, K V, Gavrilenko, V I, Goiran, M
Format: Conference Proceeding
Language:English
Subjects:
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Electron paramagnetic resonance
Electron spin
ELECTRON SPIN RESONANCE
Electrons
EXCHANGE INTERACTIONS
Exchanging
HAMILTONIANS
HARTREE-FOCK METHOD
Heterostructures
MAGNETIC FIELDS
NANOSCIENCE AND NANOTECHNOLOGY
QUANTUM WELLS
SPIN
Spin resonance
Splitting
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Summary:We report a study of electron spin resonance (ESR) in a perpendicular magnetic field in n-type narrow-gap quantum well (QW) heterostructures. Using the Hartree-Fock approximation, based on the 8×8 k⋅p Hamiltonian, the many-body corrections to the ESR energy are found to be nonzero in symmetric and asymmetric narrow-gap QWs. We demonstrate a significant enhancement of the ESR energy in asymmetric QWs, induced by the Rashba spin splitting and exchange interaction, as well as the exchange-induced enhancement of the ESR energy in symmetric QWs. The ESR energies estimated for 2DEG in InAs/AlSb QWs are compared with experimental results in weak magnetic fields.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4848408