Inhomogeneous level splitting in Pr2-xBixRu2O7

J. Van Duijn; K. H. Kim; N. Hur; D. Adroja; M. A. Adams; Q. Z. Huang; M. Jaime; S. W. Cheong; C. Broholm; T. G. Perring

doi:10.1103/PhysRevLett.94.177201

Inhomogeneous level splitting in Pr2-xBixRu2O7

J. Van Duijn, K. H. Kim, N. Hur, D. Adroja, M. A. Adams, Q. Z. Huang, M. Jaime, S. W. Cheong, C. Broholm, T. G. Perring

School of Arts and Sciences, Physics & Astronomy

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

We report that Bi doping drives Pr2-xBixRu2O7 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.

Original language	English (US)
Article number	177201
Journal	Physical review letters
Volume	94
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.94.177201
State	Published - May 6 2005

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.94.177201

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AU - Van Duijn, J.

AU - Kim, K. H.

AU - Hur, N.

AU - Adroja, D.

AU - Adams, M. A.

AU - Huang, Q. Z.

AU - Jaime, M.

AU - Cheong, S. W.

AU - Broholm, C.

AU - Perring, T. G.

PY - 2005/5/6

Y1 - 2005/5/6

N2 - We report that Bi doping drives Pr2-xBixRu2O7 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.

AB - We report that Bi doping drives Pr2-xBixRu2O7 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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Inhomogeneous level splitting in Pr2-xBixRu2O7

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