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National Academy of Sciences, Proceedings of the National Academy of Sciences, 37(114), p. 9826-9831, 2017

DOI: 10.1073/pnas.1710192114

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Phase diagram of URu<sub>2-x</sub>Fe<sub>x</sub>Si<sub>2</sub> in high magnetic fields

Journal article published in 2017 by Sheng Ran, Inho Jeon, Naveen Pouse, Alexander J. Breindel, Noravee Kanchanavatee, Kevin Huang, Andrew Gallagher, Kuan-Wen Chen, David Graf ORCID, Ryan E. Baumbach, M. Brian Maple, John Singleton
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Significance The mysterious hidden-order (HO) phase in URu 2 Si 2 is intimately related to the large-moment antiferromagnetic (LMAFM) phase that is induced under pressure or upon Fe substitution. In this study, we established the 3D phase diagram of transition temperature ( T )–magnetic field ( H )–Fe substituent concentration ( x ), which provides ready access to many of the salient features of the HO and LMAFM phases. We observed reentrance of the hidden-order phase after the LMAFM phase is suppressed by the magnetic field and also established a single relation between the transition temperature and the critical magnetic field for the HO phase, which provides constraints on potential models for the order parameter of the HO phase.