Phase diagram of URu^sub 2-x^Fe^sub x^Si^sub 2^ in high magnetic fields

Electrical transport measurements were performed on URu2 - xFexSi2 single-crystal specimens in high magnetic fields up to 45 T (DC fields) and 60 T (pulsed fields). We observed a systematic evolution of the critical fields for both the hidden-order (HO) and large-moment antiferromagnetic (LMAFM) pha...

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Published inProceedings of the National Academy of Sciences - PNAS Vol. 114; no. 37; p. 9826
Main Authors Ran, Sheng, Jeon, Inho, Pouse, Naveen, Breindel, Alexander J, Kanchanavatee, Noravee, Huang, Kevin, Gallagher, Andrew, Chen, Kuan-Wen, Graf, David, Baumbach, Ryan E, Singleton, John, Maple, M Brian
Format Journal Article
LanguageEnglish
Published Washington National Academy of Sciences 12.09.2017
Subjects
Antiferromagnetism
Chemical compounds
Electrons
Magnetic fields
Phase diagrams
Scaling
Single crystals
Studies
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Summary:Electrical transport measurements were performed on URu2 - xFexSi2 single-crystal specimens in high magnetic fields up to 45 T (DC fields) and 60 T (pulsed fields). We observed a systematic evolution of the critical fields for both the hidden-order (HO) and large-moment antiferromagnetic (LMAFM) phases and established the 3D phase diagram of T-H-x. In the HO phase, H/H0 scales with T/T0 and collapses onto a single curve. However, in the LMAFM phase, this single scaling relation is not satisfied. Within a certain range of x values, the HO phase reenters after the LMAFM phase is suppressed by the magnetic field, similar to the behavior observed for URu2Si2 within a certain range of pressures.
ISSN:0027-8424
1091-6490