Detection of the electron spin resonance of two-dimensional electrons at large 
wave vectors

Kukushkin, I. V.; Smet, J. H.; Abergel, D. S. L.; Fal'ko, V. I.; Wegscheider, W.; von Klitzing, K.

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Detection of the electron spin resonance of two-dimensional electrons at large wave vectors

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Kukushkin, I. V.
Research Group Solid State Nanophysics (Jurgen H. Smet), Max Planck Institute for Solid State Research, Max Planck Society;
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Smet, J. H.
Research Group Solid State Nanophysics (Jurgen H. Smet), Max Planck Institute for Solid State Research, Max Planck Society;
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Fal'ko, V. I.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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von Klitzing, K.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Kukushkin, I. V., Smet, J. H., Abergel, D. S. L., Fal'ko, V. I., Wegscheider, W., & von Klitzing, K. (2006). Detection of the electron spin resonance of two-dimensional electrons at large wave vectors. Physical Review Letters, 96(12): 126807.

Cite as: https://hdl.handle.net/21.11116/0000-000F-0343-2

Abstract

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.