Published April 24, 1989
| Version v1
Journal article
Ordering due to disorder in a frustrated vector antiferromagnet
Description
In many continuous spin systems, competing interactions give nontrivial degeneracies of the classical ground states. Degeneracy-breaking free-energy terms arise from thermal (or quantum) fluctuations, which select for collinear states, and from dilution, which selects for anticollinear (yet long-range ordered) states. They are explicitly computed for an XY square-lattice antiferromagnet dominated by second-neighbor antiferromagnetic exchange. The predicted phase diagram agrees qualitatively with simulations
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 62
- Journal Issue
- 17
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 2056-2059
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20050163
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANTIFERROMAGNETIC MATERIALS; FLUCTUATIONS; FREE ENERGY; GROUND STATES; ORDER-DISORDER TRANSFORMATIONS; PHASE DIAGRAMS; QUANTUM MECHANICS; SPINELS; TEMPERATURE DEPENDENCE; TWO-DIMENSIONAL CALCULATIONS
- Descriptors DEC
- DIAGRAMS; ENERGY; ENERGY LEVELS; INFORMATION; MAGNETIC MATERIALS; MATERIALS; MECHANICS; MINERALS; OXIDE MINERALS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; VARIATIONS