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Oh, Yoon Seok
Laboratory for Strong Correlation in Quantum Materials
Research Interests
  • Materials for Quantum Information Processing, Transport, and Storage
  • Quantum Magnet
  • Multiferroic

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Decrease of the coherence temperature with low Rh doping in U(Ru1-xRh)2Si2

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Title
Decrease of the coherence temperature with low Rh doping in U(Ru1-xRh)2Si2
Author
Oh, Yoon SeokKim, Kee HoonHarrison, NAmitsuka, HMydosh, JA
Keywords
Coherence temperature; Heavy-fermion system; URu2 Si2
Issue Date
2007-03
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.310, no.2, pp.855 - 857
Abstract
Comparative study of U(Ru1-xRhx)(2)Si-2 (x = 0 and 4%) through resistivity, magnetic susceptibility, and Hall coefficient measurements reveals that the coherence temperature, T-coh, of the Rh 4% doped sample clearly decreases by about 10-20% as compared with that of undoped one located around 50 K. Furthermore, T*, a characteristic temperature below which the resistivity shows the T-2 dependence, is also found to decrease by almost the same factor. These findings suggest that the low Rh doping sensitively destroys the itinerant band gap due to the hidden order (HO) through the reduction of the Fermi surface volume in the quasi-particle band. (c) 2006 Elsevier B.V. All rights reserved.
URI
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DOI
10.1016/j.jmmm.2006.10.1018
ISSN
0304-8853
Appears in Collections:
PHY_Journal Papers
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