Rights statement: © 2006 The American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Detection of the electron spin resonance of two-dimensional electrons at large wave vectors
AU - Kukushkin, I. V.
AU - Smet, J. H.
AU - Abergel, D. S. L.
AU - Falko, Vladimir
AU - Wegscheider, W.
AU - von Klitzing, K.
N1 - © 2006 The American Physical Society
PY - 2006/3/31
Y1 - 2006/3/31
N2 - We have investigated the electron spin resonance at nonzero wave vector in GaAs single quantum wells by combining the virtues of high frequency surface acoustic wave generation to produce excitations with large wave numbers with a sensitive optical scheme to detect resonant absorption. The observed large deviations from the single particle Zeeman energy are attributed to the exchange interaction. The enhancement of the electronic g(*) factor is, however, substantially smaller compared with theoretical predictions for spin waves when adopting a bare Coulomb interaction potential.
AB - We have investigated the electron spin resonance at nonzero wave vector in GaAs single quantum wells by combining the virtues of high frequency surface acoustic wave generation to produce excitations with large wave numbers with a sensitive optical scheme to detect resonant absorption. The observed large deviations from the single particle Zeeman energy are attributed to the exchange interaction. The enhancement of the electronic g(*) factor is, however, substantially smaller compared with theoretical predictions for spin waves when adopting a bare Coulomb interaction potential.
U2 - 10.1103/PhysRevLett.96.126807
DO - 10.1103/PhysRevLett.96.126807
M3 - Journal article
VL - 96
SP - -
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 12
M1 - 126807
ER -