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Unexpected phase locking of magnetic fluctuations in the multi-k magnet USb

På svenska

Author

  • J. A. Lim
  • E. Blackburn
  • N. Magnani
  • Arno Hiess
  • L. -P. Regnault
  • R. Caciuffo
  • G. H. Lander

Summary, in English

The spin waves in the multi-k antiferromagnet USb soften and become quasielastic well below the antiferromagnetic ordering temperature T-N. This occurs without a magnetic or structural transition. It has been suggested that this change is in fact due to dephasing of the different multi-k components: a switch from 3-k to 1-k behavior. In this work, we use inelastic neutron scattering with tridirectional polarization analysis to probe the quasielastic magnetic excitations and reveal that the 3-k structure does not dephase. More surprisingly, the paramagnetic correlations also maintain the same clear phase correlations well above T-N ( up to at least 1.4T(N)). DOI: 10.1103/PhysRevB.87.064421

Publishing year

2013

Language

English

Publication/Series

Physical Review B (Condensed Matter and Materials Physics)

Volume

87

Issue

6

Document type

Journal article

Publisher

American Physical Society

Topic

  • Physical Sciences
  • Natural Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 1098-0121