Field-temperature phase diagram and entropy landscape of CeAuSb 2

Zhao, Lishan; Yelland, Edward A.; Bruin, Jan A. N.; Sheikin, Ilya; Canfield, Paul C.; Fritsch, Veronika; Sakai, Hideaki; Mackenzie, Andrew P.; Hicks, Clifford W.

doi:10.1103/PhysRevB.93.195124

Title: Field-temperature phase diagram and entropy landscape of ${CeAuSb}_{2}$

Journal Article · Thu May 12 00:00:00 EDT 2016 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.93.195124· OSTI ID:1253021

Zhao, Lishan; Yelland, Edward A.; Bruin, Jan A. N.; Sheikin, Ilya; Canfield, Paul C.; Fritsch, Veronika; Sakai, Hideaki; Mackenzie, Andrew P.; Hicks, Clifford W.

Here, 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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Research Organization:: Ames Lab., Ames, IA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-07CH11358; EP/1031014/1; EP/G03673X/1; 960

OSTI ID:: 1253021

Alternate ID(s):: OSTI ID: 1278785

Report Number(s):: IS-J-9016; PRBMDO; 195124

Journal Information:: Physical Review B, Journal Name: Physical Review B Vol. 93 Journal Issue: 19; ISSN 2469-9950

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 18 works

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Microscopic Nature of Magnetic Ground State in CeAuSb ₂ Yumnam, George; Chen, Yiyao; Zhao, Yang physica status solidi (RRL) – Rapid Research Letters, Vol. 13, Issue 10 https://doi.org/10.1002/pssr.201900304	journal	July 2019
Quantum tricritical point in the temperature-pressure-magnetic field phase diagram of ${CeTiGe}_{3}$ Kaluarachchi, Udhara S.; Taufour, Valentin; Bud'ko, Sergey L. Physical Review B, Vol. 97, Issue 4 https://doi.org/10.1103/physrevb.97.045139	journal	January 2018

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