Published May 1, 2006
| Version v1
Journal article
Evidence for nodes in the superconducting energy gap of the skutterudite compound PrOs4Sb12
- 1. Department of Physics, Okayama University, Okayama 860-8530 (Japan)
- 2. Department of Mathematical and Natural Sciences, University of Tokushima, Tokushima 770-8502 (Japan)
- 3. Department of Physics, Tokyo Metropolitan University, Hachioji 192-0397 (Japan)
- 4. Department of Physics, Kobe University, Kobe 657-8501 (Japan)
Description
We report NQR measurements in the filled-skutterudite compound superconductors Pr(Os1-xRux)4Sb12(x=0.1,0.2). Upon replacing Os with Ru, the spin-lattice relaxation rate 1/T1 becomes proportional to temperature (T) at low temperatures far below Tc, and the magnitude of (1/T1T)low-T increases with increasing Ru content. These results indicate that a finite density of states are induced at the Fermi level by the impurity, suggesting that there exist nodes in the gap function of PrOs4Sb12
Additional details
Identifiers
- DOI
- 10.1016/j.physb.2006.01.072;
- PII
- S0921-4526(06)00093-7;
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 378-380
- Journal Page Range
- p. 192-193
- ISSN
- 0921-4526
- CODEN
- PHYBE3
Conference
- Title
- International conference on strongly correlated electron systems
- Acronym
- SCES 2005
- Dates
- 26-30 Jul 2005
- Place
- Vienna (Austria)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38066348
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANTIMONIDES; ENERGY GAP; ENERGY-LEVEL DENSITY; FERMI LEVEL; OSMIUM COMPOUNDS; PRASEODYMIUM COMPOUNDS; SPIN-LATTICE RELAXATION; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TEMPERATURE DEPENDENCE
- Descriptors DEC
- ANTIMONY COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ENERGY LEVELS; PHYSICAL PROPERTIES; PNICTIDES; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; RELAXATION; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.