High-Magnetic-Field Lattice Length Changes in URu2Si2

V. F. Correa, S. Francoual, M. Jaime, N. Harrison, T. P. Murphy, E. C. Palm, S. W. Tozer, A. H. Lacerda, P. A. Sharma, and J. A. Mydosh
Phys. Rev. Lett. 109, 246405 – Published 11 December 2012

Abstract

We report high-magnetic-field (up to 45 T) c^-axis thermal-expansion and magnetostriction experiments on URu2Si2 single crystals. The sample length change ΔLc(THO)/Lc associated with the transition to the “hidden order” phase becomes increasingly discontinuous as the magnetic field is raised above 25 T. The reentrant ordered phase III is clearly observed in both the thermal expansion ΔLc(T)/Lc and magnetostriction ΔLc(B)/Lc above 36 T, in good agreement with previous results. The sample length is also discontinuous at the boundaries of this phase, mainly at the upper boundary. A change in the sign of the coefficient of thermal expansion αc=1Lc(ΔLcT) is observed at the metamagnetic transition (BM38T), which is likely related to the existence of a quantum critical end point.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 7 September 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.246405

© 2012 American Physical Society

Authors & Affiliations

V. F. Correa1, S. Francoual2,*, M. Jaime2, N. Harrison2, T. P. Murphy3, E. C. Palm3, S. W. Tozer3, A. H. Lacerda4, P. A. Sharma2,†, and J. A. Mydosh5

  • 1Centro Atómico Bariloche (CNEA) and Instituto Balseiro (U. N. Cuyo), 8400 Bariloche, Río Negro, Argentina
  • 2MPA-CMMS, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
  • 3National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA
  • 4LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
  • 5Kamerlingh Onnes Laboratory, Leiden University, NL-2300 RA Leiden, Netherlands

  • *Present address: Deutsches Elektronen-Synchrotron DESY, D-22607 Hamburg, Germany.
  • Present address: Sandia National Laboratories, Albuquerque, NM 87185, USA.

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 109, Iss. 24 — 14 December 2012

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×