Published March 1, 1983
| Version v1
Journal article
Correlation theory for one dynamical variable: Application to EuO and EuS
Description
A self-consistent correlation theory is developed which is a systematic generalization of the random-phase approximation and with an equally wide range of applicability. For simplicity the theory is here given in detail for one dynamical variable. For a test of the theory static and dynamic magnetic properties for EuO and EuS for T> or =T/sub c/ are calculated. Quantitative agreement with the comprehensive and detailed experimental data is obtained for T> or =1.02T/sub c/ with no adjustable parameters. A dependence on the lattice and spin dimension as well as the value of the spin is obtained and is in agreement with high-temperature-expansion results
Additional details
Publishing Information
- Journal Title
- Phys. Rev., B: Condens. Matter
- Journal Volume
- 27
- Journal Issue
- 5
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 2980-2991
- ISSN
- 0163-1829
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 14791725
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CORRELATION FUNCTIONS; EUROPIUM OXIDES; EUROPIUM SULFIDES; HEISENBERG MODEL; MAGNETIC PROPERTIES; PHASE TRANSFORMATIONS; RANDOM PHASE APPROXIMATION; SELF-CONSISTENT FIELD; SPIN; TEMPERATURE DEPENDENCE
- Descriptors DEC
- ANGULAR MOMENTUM; CHALCOGENIDES; CRYSTAL MODELS; EUROPIUM COMPOUNDS; FUNCTIONS; MATHEMATICAL MODELS; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SULFIDES; SULFUR COMPOUNDS