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  Field-temperature phase diagram and entropy landscape of CeAuSb2

Zhao, L., Yelland, E. A., Bruin, J. A. N., Sheikin, I., Canfield, P. C., Fritsch, V., et al. (2016). Field-temperature phase diagram and entropy landscape of CeAuSb2. Physical Review B, 93(19): 195124, pp. 1-7. doi:10.1103/PhysRevB.93.195124.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-E09C-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-09FB-A
Genre: Journal Article

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 Creators:
Zhao, Lishan1, Author              
Yelland, Edward A.2, Author
Bruin, Jan A. N.2, Author
Sheikin, Ilya2, Author
Canfield, Paul C.2, Author
Fritsch, Veronika2, Author
Sakai, Hideaki2, Author
Mackenzie, Andrew P.3, Author              
Hicks, Clifford W.4, Author              
Affiliations:
1Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
2External Organizations, ou_persistent22              
3Andrew Mackenzie, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863463              
4Clifford Hicks, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863466              

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 Abstract: We report a field-temperature phase diagram and an entropy map for the heavy-fermion compound CeAuSb2. CeAuSb2 orders antiferromagnetically below T-N = 6.6 K and has two metamagnetic transitions, at 2.8 and 5.6 T. The locations of the critical end points of the metamagnetic transitions, which may play a strong role in the putative quantum criticality of CeAuSb2 and related compounds, are identified. The entropy map reveals an apparent entropy balance with Fermi-liquid behavior, implying that above the Neel transition the Ce moments are incorporated into the Fermi liquid. High-field data showing that the magnetic behavior is remarkably anisotropic are also reported.

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Language(s): eng - English
 Dates: 2016-05-122016-05-12
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 93 (19) Sequence Number: 195124 Start / End Page: 1 - 7 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008