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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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.
|Keywords:||superconductivity, crystal fields, inelastic neutron scattering|
|Subjects:||Q Science > QC Physics|
|Divisions:||University Structure - Pre August 2011 > School of Physics and Astronomy
|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|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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