Published April 30, 2005
| Version v1
Journal article
Influence of the crystal field potential on the superconducting properties of PrRu4Sb12
Creators
- 1. ISIS Facility, Rutherford Appleton Laboratory, Room UG8, Building R3, Chilton, Oxfordshire, OX11 0QX (United Kingdom)
- 2. Department of Physics, SungKyunKwan University, Suwon 440-746 (Korea, Republic of)
- 3. ISIS Facility, Rutherford Appleton Laboratory, Room UG8, Building R3, Chilton, Oxfordshire, OX11 0QX (United Kingdom) and Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 (United States)
- 4. Institute of Solid State Physics, University of Tokyo, Roppongi, Minato-ku, Tokyo 106-8666 (Japan)
- 5. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom)
- 6. Materials Science Division, Argonne National Laboratory, Argonne, IL 60439 (United States)
- 7. Department of Physics, Southampton University, Southampton, SO17 1BJ (United Kingdom)
Description
We have determined the crystal field potential of the superconductor PrRu4Sb12(Tc∼0.9K) using 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 Δ ∼5.6meV. Comparison with recent results on the PrOs4Sb12 compound, where Tc∼1.85K and Δ ∼0.6meV, 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
Additional details
Identifiers
- DOI
- 10.1016/j.physb.2005.01.286;
- PII
- S0921-4526(05)00320-0;
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 359-361
- Journal Page Range
- p. 983-985
- ISSN
- 0921-4526
- CODEN
- PHYBE3
Conference
- Title
- International conference on strongly correlated electron systems
- Acronym
- SCES '04
- Dates
- 26-30 Jul 2004
- Place
- Karlsruhe (Germany)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37067948
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANTIMONIDES; COMPARATIVE EVALUATIONS; COULOMB SCATTERING; CRYSTAL FIELD; EXCITED STATES; FLUCTUATIONS; GROUND STATES; INELASTIC SCATTERING; NEUTRON DIFFRACTION; POTENTIALS; PRASEODYMIUM COMPOUNDS; PRASEODYMIUM IONS; RUTHENIUM COMPOUNDS; SUPERCONDUCTIVITY; SUPERCONDUCTORS; SYMMETRY; TEMPERATURE DEPENDENCE; TRIPLETS
- Descriptors DEC
- ANTIMONY COMPOUNDS; BASIC INTERACTIONS; CHARGED PARTICLES; COHERENT SCATTERING; DIFFRACTION; ELASTIC SCATTERING; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTROMAGNETIC INTERACTIONS; ENERGY LEVELS; EVALUATION; INTERACTIONS; IONS; MULTIPLETS; PHYSICAL PROPERTIES; PNICTIDES; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPOUNDS; VARIATIONS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.