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APS » Journals » Phys. Rev. B » Volume 52 » Issue 10
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Phys. Rev. B 52, R6995–R6998 (1995)

Magnetism in RbC60 studied by muon-spin rotation

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W.A. MacFarlane, R.F. Kiefl, S. Dunsiger, and J.E. Sonier
Department of Physics and TRIUMF, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1

J.E. Fischer
Materials Science Department and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104

Received 12 July 1995; published in the issue dated 1 September 1995

We report an investigation of the magnetic properties of orthorhombic RbC60 using muon-spin rotation (μSR). Measurements in zero applied field and high transverse field reveal a transition to a magnetic state below T=60 K. The μSR spectra at low temperatures indicate that the internal magnetic fields are quasistatic on the time scale of a few μs and have a Lorentzian-like distribution. These observations suggest that the magnetic structure is more disordered than a simple spin-density-wave state or an antiferromagnet.

© 1995 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.52.R6995
DOI:
10.1103/PhysRevB.52.R6995
PACS:
74.25.-q, 74.70.Wz, 76.75.+i
 
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