Published May 1996
| Version v1
Journal article
Spin gap in HgBa2Ca2Cu3O8+δ single crystals from 63Cu NMR
Creators
- 1. Commissariat a l'Energie Atomique, Service de Physique de l'Etat Condense, Saclay, 91191 Gif sur Yvette Cedex (France)
- 2. Commissariat a l'Energie Atomique, Departement de Recherche Fondamentale sur la Matiere Condensee, Laboratoire de Cryophysique, 17 rue des Martyrs, 38054 Grenoble Cedex 9 (France)
- 3. Laboratoire de Spectrometrie Physique, Universite Joseph Fourier Grenoble 1 (URA 08 CNRS), Boite Postale 87, 38402 Saint-Martin d'Heres Cedex (France)
- 4. Grenoble High Magnetic Field Laboratory, Centre National de la Recherche Scientifique and Max-Planck-Institut fuer Festkoerperforschung, Boite Postale 166, 38042 Grenoble Cedex 9 (France)
Description
We report on 63Cu NMR spectra, T1 and T2G measurements in single crystals of underdoped, three-layered, HgBa2Ca2Cu3O8+δ, with Tc≅115 K. We show clear evidence for the opening of a spin gap below T*≅230 K, the highest temperature reported so far. Also, the characteristic energy of the spin fluctuations is found to be higher than in YBa2Cu3O6+x; both features are presumably related to the very high Tc in this compound. Below T*, 63T1 has the same temperature dependence in the three CuO2 planes, which is difficult to explain within a pure interlayer spin pairing. copyright 1996 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 76
- Journal Issue
- 22
- Journal Page Range
- p. 4238-4241.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27074351
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; ENERGY GAP; HIGH-TC SUPERCONDUCTORS; HYPERFINE STRUCTURE; MERCURY OXIDES; MONOCRYSTALS; NMR SPECTRA; SPIN; TEMPERATURE DEPENDENCE
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ANGULAR MOMENTUM; BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTALS; MERCURY COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; SPECTRA; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS