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The Nematic Character of a Hidden Ordered State revealed by Magnetic Fields.

Published online by Cambridge University Press:  06 May 2014

Peter S. Riseborough ,
S. G. Magalhaes  and
E.J. Calegari
Peter S. Riseborough
Affiliation:
Dept of Physics, Temple University, Phialdelphia, PA 19122, U.S.A.
S. G. Magalhaes
Affiliation:
Inst. Fis., Univ. Fed. Fluminense, Niteroi, Rio de Janeiro, 24210346 Brazil
E.J. Calegari
Affiliation:
Dept. Fis. Lab. Teoria Mat. Condensada, Univ. Fed. Santa Maria, Santa Maria, RS 97105900, Brazil
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Abstract

We examine a novel phase of the underscreened Anderson lattice Model that might pertain to the ”Hidden Ordered” phase of URu2Si2. We show that the system breaks spin-rotational invariance below the critical temperature and spontaneously selects a preferred axis of spin quantization. As a result, the low temperature phase exhibits a magnetic anisotropy, where the electronic properties depend not only on the magnitude of the magnetic field but also on the orientation of the applied field relative to the axis of quantization. The results are discussed in the context of recent experimental findings on URu2Si2.

Keywords

phase transformationactinideU
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1683: Symposium S – Advanced Materials for Rechargeable Batteries , 2014 , mrss14-1683-s02-02
Copyright
Copyright © Materials Research Society 2014 

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References

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