Abstract
The study of electron spin resonance (ESR) of the two-dimensional conduction electrons in GaAs-A1GaAs-heterostructures [1,2] revealed a strong coupling between electronic and nuclear spins. This coupling results in a dynamical nuclear spin polarization [3,4] and hence reciprocally in a shift of the ESR-line, the Overhauser-shift [5,6,3]. These effects together with very long nuclear spin relaxation times give rise to hysteresis and instabilities in the ESR. By applying radio frequencies in order to perform nuclear magnetic resonance (NMR) we have been able to detect, as well as ESR, also NMR in the magnetoresistivity ρ xx of GaAs-AlGaAs-heterostructures.
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References
M. Dobers, K. v. Klitzing, G. Weimann to be published in Phys. Rev. B
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© 1989 Springer-Verlag Berlin, Heidelberg
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Dobers, M., v. Klitzing, K., Schneider, J., Weimann, G., Ploog, K. (1989). Overhauser-Shift of the ESR in the Two-Dimensional Electron Gas of GaAs-AlGaAs Heterostructures. In: Landwehr, G. (eds) High Magnetic Fields in Semiconductor Physics II. Springer Series in Solid-State Sciences, vol 87. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83810-1_60
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DOI: https://doi.org/10.1007/978-3-642-83810-1_60
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