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Multicritical phase diagrams of the Blume-Emery-Griffiths model with repulsive biquadratic coupling including metastable phases

โœ Scribed by Ekiz, Cesur; Keskin, Mustafa


Book ID
124148676
Publisher
The American Physical Society
Year
2002
Tongue
English
Weight
153 KB
Volume
66
Category
Article
ISSN
1098-0121

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Blume-Emery-Griffiths model on the squar
โœ N.S. Branco ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 463 KB

Using a real-space renormalization group procedure with no adjustable parameters, we investigate the Blume-Emery-Griffiths model on the square lattice. The formalism respects sublattice symmetry, allowing the study of both signs of K, the biquadratic exchange coupling. Our results for K > 0 are comp