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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2014, Volume 99, Issue 1, Pages 40–44
DOI: https://doi.org/10.7868/S0370274X14010081 (Mi jetpl3632) 		 
This article is cited in 11 scientific papers (total in 11 papers)

CONDENSED MATTER

Nuclear spin relaxation mediated by Fermi-edge electrons in $n$-type GaAs

M. Kotura, R. I. Dzhioeva, K. V. Kavokinba, V. L. Koreneva, B. R. Namozova, P. E. Paka, Yu. G. Kusrayeva

a Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg
b Saint Petersburg State University
Full-text PDF (399 kB) Citations (11)
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DOI: https://doi.org/10.7868/S0370274X14010081
Abstract: A method based on the optical orientation technique was developed to measure the nuclear-spin lattice relaxation time $T_1$ in semiconductors. It was applied to bulk $n$-type GaAs, where $T_1$ was measured after switching off the optical excitation in magnetic fields from $400$ to $1200$ G at low ($<30\,$K) temperatures. The spin-lattice relaxation of nuclei in the studied sample with $n_D = 9 \cdot 10^{16}$ cm$^{-3}$ was found to be determined by hyperfine scattering of itinerant electrons (Korringa mechanism) which predicts invariability of $T_1$ with the change of magnetic field and linear dependence of the relaxation rate on temperature. This result extends the experimentally verified applicability of the Korringa relaxation law in degenerate semiconductors, previously studied in strong magnetic fields (several Tesla), to the moderate field range.
Received: 16.12.2013
English version:
Journal of Experimental and Theoretical Physics Letters, 2014, Volume 99, Issue 1, Pages 37–41
DOI: https://doi.org/10.1134/S0021364014010068
Bibliographic databases:
Document Type: Article
Language: English
Citation: M. Kotur, R. I. Dzhioev, K. V. Kavokin, V. L. Korenev, B. R. Namozov, P. E. Pak, Yu. G. Kusrayev, “Nuclear spin relaxation mediated by Fermi-edge electrons in $n$-type GaAs”, Pis'ma v Zh. Èksper. Teoret. Fiz., 99:1 (2014), 40–44; JETP Letters, 99:1 (2014), 37–41
Citation in format AMSBIB
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    • This publication is cited in the following 11 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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