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Nuclear magnetic resonance studies of pseudospin fluctuations in URu2Si2.
- Source :
-
Physical Review B: Condensed Matter & Materials Physics . Sep2013, Vol. 88 Issue 9, p094436-1-094436-5. 5p. - Publication Year :
- 2013
-
Abstract
- We report 29Si 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 THO 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10980121
- Volume :
- 88
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Physical Review B: Condensed Matter & Materials Physics
- Publication Type :
- Academic Journal
- Accession number :
- 91682251
- Full Text :
- https://doi.org/10.1103/PhysRevB.88.094436