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
Muro Yuji
Haizaki Yukio
Kim M. S.
Tou Hideki
Source Title
Physical review. B
Volume 69
Start Page 020401-1
End Page 020401-4
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.
Physics [ 420 ]
Resource Type journal article
American Physical Society
Date of Issued 2004
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