Published April 30, 2005
| Version v1
Journal article
59Co NMR and NQR studies in the unconventional superconductor Na0.35CoO2.1.3H2O
Creators
- 1. Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)
- 2. Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)
- 3. Superconducting Materials Center, NIMS, Namiki, Tsukuba, Ibaraki 305-0044 (Japan)
- 4. Advanced Materials Laboratory, NIMS, Namiki, Tsukuba, Ibaraki 305-0044 (Japan)
Description
We performed 59Co NMR and NQR measurements of Na0.35CoO2.1.3H2O superconductor with Tc of about 5K in order to decide the pairing symmetry of the Cooper pairs. From NQR measurements, it was found that the increase in 1/T1T above Tc is attributed to nearly ferromagnetic fluctuations. The spin contributed Knight shift was estimated by δν/(γNHi) vs. (γNHi)-2 plot. Consequently, the Knight shift below Tc is invariant at 7T. This result suggests the possibility of unconventional superconductivity with the spin-triplet state of p- or f-wave pairing symmetry
Additional details
Identifiers
- DOI
- 10.1016/j.physb.2005.01.107;
- PII
- S0921-4526(05)00112-2;
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 359-361
- Journal Page Range
- p. 482-484
- 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
- 37065670
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COBALT 59; COBALT OXIDES; COOPER PAIRS; F WAVES; FLUCTUATIONS; HYDRATES; KNIGHT SHIFT; NUCLEAR MAGNETIC RESONANCE; SODIUM COMPOUNDS; SPIN; SUPERCONDUCTIVITY; SUPERCONDUCTORS; SYMMETRY; TRIPLETS
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ANGULAR MOMENTUM; CHALCOGENIDES; COBALT COMPOUNDS; COBALT ISOTOPES; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; INTERMEDIATE MASS NUCLEI; ISOTOPES; MAGNETIC RESONANCE; MULTIPLETS; NUCLEI; ODD-EVEN NUCLEI; OXIDES; OXYGEN COMPOUNDS; PARTIAL WAVES; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; RESONANCE; STABLE ISOTOPES; TRANSITION ELEMENT COMPOUNDS; VARIATIONS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.