Published May 1, 1992
| Version v1
Journal article
Magnetic critical properties of the undoped cuprates in a quasi-two-dimensional nonlinear-sigma-model approach
Creators
- 1. Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080 (China)
- 2. Center of Theoretical Physics, Chinese Center of Advanced Science Technology (World Laboratory), P.O. Box 8730, Beijing 100080 (China)
Description
A quasi-two-dimensional (2D) nonlinear sigma model (NLSM) is used to model the antiferromagnetism of the insulating layered undoped cuprate materials. As Chakravarty, Halperin, and Nelson (CHN) did for their 2D NLSM, we make a renormalization-group analysis of the quasi-2D NLSM. In contrast with CHN's 2D model, the quasi-2D NLSM yields a nonzero Neel temperature so that our theoretical Neel temperatures can be fitted completely with the experimental ones. Our theoretical correlation lengths are fitted very well with the experimental La2CuO4 data of the materials within 220 K above TN
Additional details
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter
- Journal Volume
- 45
- Journal Issue
- 18
- Series
- Phys. Rev., B Condens. Matter.
- Journal Page Range
- 10771-10774
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23085024
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANTIFERROMAGNETISM; COUPLING CONSTANTS; CUPRATES; NEEL TEMPERATURE; SIGMA MODEL; TWO-DIMENSIONAL CALCULATIONS
- Descriptors DEC
- BOSON-EXCHANGE MODELS; COPPER COMPOUNDS; MAGNETISM; MATHEMATICAL MODELS; OXYGEN COMPOUNDS; PARTICLE MODELS; PERIPHERAL MODELS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE