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From classical to quantum glass

Wu, Wenhao and Ellman, B. and Rosenbaum, T. F. and Aeppli, G. and Reich, D. H. (1991) From classical to quantum glass. Physical Review Letters, 67 (15). pp. 2076-2079. ISSN 0031-9007.

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We study the effects of a transverse magnetic field on the dynamics of the randomly diluted, dipolar coupled, Ising magnet LiHo_(0.167)Y_(0.833)F_4. The transverse field mixes the eigenfunctions of the ground-state Ising doublet with the otherwise inaccessible excited-state levels. We observe a rapid decrease in the characteristic relaxation times, large changes in the spectral form of the relaxation, and a depression of the spin-glass transition temperature with the introduction of quantum fluctuations.

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Additional Information:© 1991 The American Physical Society. Received 11 March 1991. The work at The University of Chicago was supported by the NSF Materials Research Laboratory under Grant No. 88-19860.
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Issue or Number:15
Classification Code:PACS numbers: 75.50.Lk, 05.30.—d, 75.40.6b
Record Number:CaltechAUTHORS:20140707-163038493
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47021
Deposited By: George Porter
Deposited On:10 Jul 2014 03:02
Last Modified:03 Oct 2019 06:48

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