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APS » Journals » Phys. Rev. Lett. » Volume 71 » Issue 12
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Phys. Rev. Lett. 71, 1891–1894 (1993)

Effect of vortex fluctuations on 205Tl spin-lattice relaxation in the mixed state of Tl2Ba2CuO6

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L. N. Bulaevskii, N. N. Kolesnikov, I. F. Schegolev, and O. M. Vyaselev
Los Alamos National Laboratory, Los Alamos, New Mexico 87545
Institute of Solid State Physics, Russian Academy of Science, Chernogolovka 142432, Russia

Received 27 April 1993; published in the issue dated 20 September 1993

The spin-lattice relaxation rate W on 205Tl has been measured in the mixed state of a Tl2Ba2CuO6 aligned powder sample with Tc=100 K. At T<25 K, W∝T and decreases with increasing magnetic field. This behavior is explained as caused by fluctuations of pancake vortices; the latter induce a time dependent random magnetic field which causes the relaxation of nuclear spins.

© 1993 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.71.1891
DOI:
10.1103/PhysRevLett.71.1891
PACS:
74.25.Nf
 
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