Influence of the crystal field potential on the superconducting properties of PrRU4Sb12


Adroja, D.T., Park, J.G., Goremychkin, E.A., Takeda, N., Ishikawa, M., McEwen, K.A., Osborn, R., Hillier, A.D. and Rainford, B.D. (2005) Influence of the crystal field potential on the superconducting properties of PrRU4Sb12. Physica B: Condensed Matter, 359-361, 983-985. (doi:10.1016/j.physb.2005.01.286).

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Description/Abstract

We have determined the crystal field potential of the superconductor PrRu4Sb12 View the MathML sourceusing inelastic neutron scattering. The ground state of the Pr+3 ions in Th point group symmetry is a Γ1 singlet with a Γ5 triplet at an energy of Δnot, vert, similar5.6 meV. Comparison with recent results on the PrOs4Sb12 compound, where View the MathML source and Δnot, vert, similar0.6 meV, supports the conjecture that inelastic quadrupolar fluctuations (or aspherical Coulomb scattering) are responsible for the strong enhancement of Tc. In PrRu4Sb12, the effect is reduced by the higher energy of the first excited level.

Item Type: Article
Additional Information:
ISSNs: 0921-4526 (print)
Related URLs:
Keywords: superconductivity, crystal fields, inelastic neutron scattering
Subjects: Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Physics and Astronomy
Item ID: 56951
Date Deposited: 13 Aug 2008
Last Modified: 12 May 2013 01:21
Contributors: Adroja, D.T. (Author)
Park, J.G. (Author)
Goremychkin, E.A. (Author)
Takeda, N. (Author)
Ishikawa, M. (Author)
McEwen, K.A. (Author)
Osborn, R. (Author)
Hillier, A.D. (Author)
Rainford, B.D. (Author)
Date: 30 April 2005
Additional Information:
Status: Published
URI: http://eprints.soton.ac.uk/id/eprint/56951

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