Published May 20, 1996
| Version v1
Journal article
Tb spin correlations in Pb2Sr2Tb0.5Ca0.5Cu3O8
- 1. Swiss Light Source Project, Paul Scherrer Inst., Villigen (Switzerland)
- 2. ETH, Villigen (Switzerland). Lab. for Neutron Scattering
- 3. Argonne National Lab., IL (United States). Chemistry Div.
- 4. Institut Max von Laue - Paul Langevin, 38 -Grenoble (France)
- 5. Rutherford Appleton Lab., Chilton (United Kingdom)
Description
High-resolution neutron spectroscopy and neutron diffraction results on the magnetic properties of Tb in the high-Tc superconductor Pb2Sr2Tb0.5Ca0.5Cu3O8 are presented. The lowest-lying crystalline-electric-field transition, expected at 7 μeV, is not observed, indicating that the system can still be described in the mean-field approximation at 20 K, well above TN (4 K). The inelastic neutron spectra can be decomposed into an elastic and a quasi-elastic part, indicating that a single Lorentzian does not describe well the magnetic-response function and/or that Tb 2D short-range correlations persist up to temperatures above 100 K. (orig.)
Additional details
Publishing Information
- Journal Title
- Europhysics Letters
- Journal Volume
- 34
- Journal Issue
- 6
- Journal Page Range
- p. 447-452.
- ISSN
- 0295-5075
- CODEN
- EULEEJ
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 27059123
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CALCIUM COMPOUNDS; COPPER OXIDES; CORRELATION FUNCTIONS; CUPRATES; FLUCTUATIONS; HIGH-TC SUPERCONDUCTORS; LEAD COMPOUNDS; MAGNETIC PROPERTIES; MEAN-FIELD THEORY; NEUTRON DIFFRACTION; STRONTIUM COMPOUNDS; TERBIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; DIFFRACTION; FUNCTIONS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; VARIATIONS