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Title: Phase diagram of URu 2–xFe xSi 2 in high magnetic fields

Here, electrical transport measurements were performed on URu 2-xFe xSi 2 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/H 0 scales with T/T 0 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 URu 2Si 2 within a certain range of pressures.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [4] ;  [4] ;  [4] ;  [5] ;  [1]
  1. Univ. of California, San Diego, La Jolla, CA (United States)
  2. Univ. of California, San Diego, La Jolla, CA (United States); Chulalongkorn Univ., Pathumwan (Thailand)
  3. Univ. of California, San Diego, La Jolla, CA (United States); Florida State Univ., Tallahassee, FL (United States)
  4. Florida State Univ., Tallahassee, FL (United States)
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Oxford, Oxford (United Kingdom)
Publication Date:
Report Number(s):
LA-UR-17-27391
Journal ID: ISSN 0027-8424
Grant/Contract Number:
NA0002909; FG02-04ER46105; AC52-06NA25396
Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Volume: 114; Journal Issue: 37; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)
Research Org:
Univ. of California, San Diego, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; hidden order; URu2Si2; high magnetic field; phase diagram; High Magnetic Field Science; Hidden order, alloy
OSTI Identifier:
1377092
Alternate Identifier(s):
OSTI ID: 1377066; OSTI ID: 1392816