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Nuclear magnetic resonance studies of pseudospin fluctuations in URu2Si2
- Shirer, K. R. (author)
- Haraldsen, J. T. (author)
- Dioguardi, A. P. (author)
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- Crocker, J. (author)
- ApRoberts-Warren, N. (author)
- Shockley, A. C. (author)
- Lin, C. -H (author)
- Nisson, D. M. (author)
- Cooley, J. C. (author)
- Janoschek, M. (author)
- Huang, K. (author)
- Kanchanavatee, N. (author)
- Maple, M. B. (author)
- Graf, M. J. (author)
- Curro, N. J. (author)
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- (creator_code:org_t)
- 2013
- 2013
- English.
- In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 88:9, s. 094436-
- Journal article (peer-reviewed)
Abstract
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- We report Si-29 nuclear magnetic resonance measurements in single crystals and aligned powders of URu2Si2 in the hidden order and paramagnetic phases. The spin-lattice relaxation data reveal evidence of pseudospin fluctuations of U moments in the paramagnetic phase. We find evidence for partial suppression of the density of states below 30 K and analyze the data in terms of a two-component spin-fermion model. We propose that this behavior is a realization of a pseudogap between the hidden-order transition T-HO and 30 K. This behavior is then compared to other materials that demonstrate precursor fluctuations in a pseudogap regime above a ground state with long-range order.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- Shirer, K. R.
- Haraldsen, J. T.
- Dioguardi, A. P.
- Crocker, J.
- ApRoberts-Warren ...
- Shockley, A. C.
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- Lin, C. -H
- Nisson, D. M.
- Cooley, J. C.
- Janoschek, M.
- Huang, K.
- Kanchanavatee, N ...
- Maple, M. B.
- Graf, M. J.
- Balatsky, Alexan ...
- Curro, N. J.
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- Stockholm University
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