Heavy-fermion weak-ferromagnet YbRhSb

Physical review. B Volume 69 Page 020401-1-020401-4 published_at 2004
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Title ( eng )
Heavy-fermion weak-ferromagnet YbRhSb
Creator
Muro Yuji
Haizaki Yukio
Kim M. S.
Tou Hideki
Source Title
Physical review. B
Volume 69
Start Page 020401-1
End Page 020401-4
Abstract
A new Yb-based compound YbRhSb with the orthorhombic -TiNiSi-type structure has been synthesized. The magnetic-susceptibility, magnetization, and specific-heat (Cp) measurements of single crystals revealed a ferromagnetic transition at TC = 2.7 K. An extrapolation of the Cp/T data below 1 K yields 370 mJ/mol K2 as the value, and the magnetic entropy reaches only 0.25R ln 2 at TC. The spontaneous moment is unusually small, 3×10–3µB/Yb for B||b, while the magnetization increases to 1.4µB/Yb when the field of 15 T is applied along the a axis. We ascribe the weak ferromagnetism to a canted antiferromagnetic structure based on the observation of a metamagnetic transition and the decrease of TC with the increase of magnetic field.
NDC
Physics [ 420 ]
Language
eng
Resource Type journal article
Publisher
American Physical Society
Date of Issued 2004
Rights
Copyright (c) 2004 The American Physical Society
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 1098-0121
[DOI] http://dx.doi.org/10.1103/PhysRevB.69.020401 isVersionOf