Inhomogeneous Level Splitting in Pr2xBixRu2O7

J. van Duijn, K. H. Kim, N. Hur, D. Adroja, M. A. Adams, Q. Z. Huang, M. Jaime, S.-W. Cheong, C. Broholm, and T. G. Perring
Phys. Rev. Lett. 94, 177201 – Published 2 May 2005; Erratum Phys. Rev. Lett. 94, 189901 (2005)

Abstract

We report that Bi doping drives Pr2xBixRu2O7 from an antiferromagnetic insulator (x=0) to a metallic paramagnet (x1) with a broad low T maximum in C/T. Neutron scattering reveals local low energy spin excitations (ω1meV) with a spectrum that is unaffected by heating to kBTω. We show that a continuous distribution of splittings of the non-Kramers Pr3+ ground-state doublet such as might result from various types of lattice strain can account for all the data.

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  • Received 4 October 2004
  • Corrected 5 May 2005

DOI:https://doi.org/10.1103/PhysRevLett.94.177201

©2005 American Physical Society

Corrections

5 May 2005

Erratum

Publisher’s Note: Inhomogeneous Level Splitting in Pr2xBixRu2O7 [Phys. Rev. Lett.PRLTAO0031-9007 94, 177201 (2005)]

J. van Duijn, K. H. Kim, N. Hur, D. Adroja, M. A. Adams, Q. Z. Huang, M. Jaime, S.-W. Cheong, C. Broholm, and T. G. Perring
Phys. Rev. Lett. 94, 189901 (2005)

Authors & Affiliations

J. van Duijn1,2, K. H. Kim3,*, N. Hur4, D. Adroja2, M. A. Adams2, Q. Z. Huang5, M. Jaime3, S.-W. Cheong4, C. Broholm1,5, and T. G. Perring2

  • 1Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA
  • 2ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, United Kingdom
  • 3MST-NHMFL, Los Alamos National Laboratory, New Mexico 87544, USA
  • 4Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
  • 5NIST Centre for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA

  • *Permanent address: CSCMR & School of Physics, Seoul National University, Seoul 151-747, S. Korea.

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Issue

Vol. 94, Iss. 17 — 6 May 2005

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