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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2004, Volume 80, Issue 8, Pages 614–618
(Mi jetpl2149)
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CONDENSED MATTER
63,65Cu NMR study of low-frequency spin dynamics in the infinite-layer antiferromagnetic compound SrCuO2
K. N. Mikhaleva, S. O. Rebrina, A. P. Gerashchenkoa, T. V. D'yachkovab a Institute of Metal Physics, Ural Division of the Russian Academy of Sciences
b Institute of Solid State Chemistry, Urals Branch of the Russian Academy of Sciences
Abstract:
The spin-lattice and spin-spin relaxation times have been measured for 63,65Cu NMR in the infinite-layer anti-ferromagnet SrCuO2 in the ordered state for temperatures from 4.2 to 361 K. In the region of low temperatures (T≤250 K), both relaxation processes are of the same nature and the main contribution to the relaxation rate is associated with the diffusion of a small number of holes with an activation energy of ∼42 meV. In the high-temperature range (T > 250 K), contributions to the transverse relaxation rate exhibit redistribution and this relaxation process is determined predominantly by indirect interactions.
Received: 25.08.2004
Citation:
K. N. Mikhalev, S. O. Rebrin, A. P. Gerashchenko, T. V. D'yachkova, “63,65Cu NMR study of low-frequency spin dynamics in the infinite-layer antiferromagnetic compound SrCuO2”, Pis'ma v Zh. Èksper. Teoret. Fiz., 80:8 (2004), 614–618; JETP Letters, 80:8 (2004), 540–543
Linking options:
https://www.mathnet.ru/eng/jetpl2149 https://www.mathnet.ru/eng/jetpl/v80/i8/p614
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Abstract page: | 185 | Full-text PDF : | 64 | References: | 35 |
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