Published June 1, 1988
| Version v1
Journal article
Numerical investigation of competing spin-spin interactions in a two-dimensional Ising model for La2√/sub z/CuO4√/sub y/
Creators
- 1. Abteilung fuer Theoretische Festkoerperphysik, Universitaet Hamburg, Jungiusstrasse 11, 2000 Hamburg 36, West Germany
Description
We have investigated numerically the model of Klemm, Thomann, and Johnston for La2√/sub z/CuO4√/sub y/. We assume for computational simplicity that the orthorhombic symmetry-breaking energy is large, implying Ising-like spin interactions predominate. Monte Carlo calculations suggest that the ground states exhibit quasi-long-range order in the orthorhombic c-axis direction, but are frustrated (or incommensurate) in the a-axis direction. The excited states often exhibit triplet pairs of spins that are flipped relative to the ground state
Additional details
Publishing Information
- Journal Title
- Phys. Rev., B: Condens. Matter
- Journal Volume
- 37
- Journal Issue
- 16
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 9359-9363
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19082176
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- COPPER OXIDES; EXCITED STATES; GROUND STATES; HAMILTONIANS; ISING MODEL; LANTHANUM OXIDES; ORDER PARAMETERS; ORTHORHOMBIC LATTICES; SPIN-SPIN RELAXATION; SUPERCONDUCTORS
- Descriptors DEC
- CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL LATTICES; CRYSTAL MODELS; CRYSTAL STRUCTURE; ENERGY LEVELS; LANTHANUM COMPOUNDS; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; OXIDES; OXYGEN COMPOUNDS; QUANTUM OPERATORS; RARE EARTH COMPOUNDS; RELAXATION; TRANSITION ELEMENT COMPOUNDS