Magnetic Ordering in the Spin-Ice Candidate Ho2Ru2O7

C. R. Wiebe, J. S. Gardner, S.-J. Kim, G. M. Luke, A. S. Wills, B. D. Gaulin, J. E. Greedan, I. Swainson, Y. Qiu, and C. Y. Jones
Phys. Rev. Lett. 93, 076403 – Published 11 August 2004

Abstract

Neutron scattering measurements on the spin-ice candidate material Ho2Ru2O7 have revealed two magnetic transitions at T95 and 1.4   K to long-range ordered states involving the Ru and Ho sublattices, respectively. Between these transitions, the Ho3+ moments form short-ranged ordered spin clusters. The internal field provided by the ordered S=1Ru4+ moments disrupts the fragile spin-ice state and drives the Ho3+ moments to order. We have directly measured a slight shift in the Ho3+ crystal field levels at 95 K from the Ru ordering.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 15 December 2003

DOI:https://doi.org/10.1103/PhysRevLett.93.076403

©2004 American Physical Society

Authors & Affiliations

C. R. Wiebe1,2,*, J. S. Gardner3,4, S.-J. Kim1, G. M. Luke1, A. S. Wills5, B. D. Gaulin1, J. E. Greedan6, I. Swainson7, Y. Qiu4,8, and C. Y. Jones4

  • 1Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4M1, Canada
  • 2Department of Physics, Columbia University, New York, New York 10027, USA
  • 3Department of Physics, Brookhaven National Laboratory, Upton, New York, 11973-5000, USA
  • 4NIST Center for Neutron Research, Gaithersburg, Maryland, 20899-8562, USA
  • 5Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, United Kingdom
  • 6Department of Chemistry, McMaster University, Hamilton, Ontario L8S 4M1, Canada
  • 7NPMR, NRC, Chalk River, Ontario K0J 1J0, Canada
  • 8Department of Materials Science and Engineering, University of Maryland, College Park, Maryland, 20742, USA

  • *Current address: Department of Physics, Brock University, St. Catharines, Ontario L2S 3A1, Canada. Electronic address: cwiebe@brocku.ca

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 93, Iss. 7 — 13 August 2004

Reuse & Permissions
Access Options
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
×