Competition between plaquette and dimer phases in Heisenberg chains

Physics Letters, Section A: General, Atomic and Solid State Physics

Volumn 232, Issue 3-4, 1997, Pages 308-312

  Ivanov, N B ^a   Richter, J ^b  

^a BULGARIAN ACADEMY OF SCIENCES   (Bulgaria)

^b OTTO VON GUERICKE UNIVERSITY   (Germany)

Author keywords

Dimer states; Heisenberg antiferromagnetic chains; Rigorous results; Spin gaps

Indexed keywords

HEISENBERG ANTIFERROMAGNETIC CHAIN; HEISENBERG CHAINS; HEISENBERG SPINS; HEISENBERG SYSTEM; NUMERICAL RESULTS; RIGOROUS RESULTS; SPIN GAP; SQUARE LATTICES;

EID: 0041155135     PISSN: 03759601     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0375-9601(97)00374-5     Document Type: Article

References (11)

1. S. Taniguchi, T. Nishikawa, Y. Yasui, Y. Kobayashi, M. Sato, T. Nishioka, M. Kontani and K. Sano, J. Phys. Soc. Jpn. 64 (1995) 2758.
2. N. Katoh and M. Imada, J. Phys. Soc. Jpn. 64 (1995) 4105.
3. K. Ueda, H. Kontani, M. Sigrist and P.A. Lee, Phys. Rev. Lett. 76 (1995) 1932.
4. K. Sano and K. Takano, J. Phys. Soc. Jpn. 65 (1995) 46.
5. M. Albrecht and F. Mila, Phys. Rev. B 53 (1996) R2945.
6. E.H. Lieb and D.C. Mattis, J. Math. Phys. 3 (1962) 749.
7. D.J. Klein, J. Chem. Phys. 77 (1982) 3098.
8. C. Dasgupta and S. Ma, Phys. Rev. B 22 (1980) 1305.
9. H.J. Schulz, Phys. Rev. B 34 (1986) 6372.
10. I. Affleck, J. Magn. Magn. Mater. 90&91 (1990) 210.
11. H. Kitatani and T. Oguchi, J. Phys. Soc. Jpn. 65 (1996) 1387.