Phase Diagram of Spin-1/2 Alternating Ferromagnetic Chain withXY-Like Anisotropy
作者： Satoru Yoshida , Kiyomi Okamoto
DOI: 10.1143/JPSJ.58.4367
关键词:
摘要: By the use of numerical method we investigate ground state phase diagram spin-1/2 alternating ferromagnetic chain. We numerically diagonalized Hamiltonian finite systems (up to 20 spins) and analyzed data for various physical quantities using size scaling extrapolation methods. The is either effective singlet (ES) or spin fluid (SF) depending on value alternation parameter δ anisotropy Δ ≡ J z / ⊥ ( =-1 isotropic case =0 X Y case). obtained in this work strongly stupports theoretical studies Kohmoto-den Nijs-Kadanoff Okamoto-Sugiyama. also discuss critical properties near ES-SF transition line.
harvard.edu
jps.jp
sci-hub.se 参考文章(13)
Kiyomi Okamoto, Correlation function in spin-1/2 alternating Heisenberg-XY antiferromagnets in one dimension Journal of the Physical Society of Japan. ,vol. 56, pp. 912- 917 ,(1987) , 10.1143/JPSJ.56.912
Kiyomi Okamoto, Tadao Sugiyama, Ground-state of spin-1/2 alternating Heisenberg-XY ferromagnet in one dimension Journal of the Physical Society of Japan. ,vol. 57, pp. 1610- 1620 ,(1988) , 10.1143/JPSJ.57.1610
Kiyomi Okamoto, Longitudinal Spin Correlation in Spin-1/2 Dimerized XY Chain Journal of the Physical Society of Japan. ,vol. 57, pp. 2947- 2954 ,(1988) , 10.1143/JPSJ.57.2947
Jacques Des Cloizeaux, Michel Gaudin, Anisotropic Linear Magnetic Chain Journal of Mathematical Physics. ,vol. 7, pp. 1384- 1400 ,(1966) , 10.1063/1.1705048
Y. Suzumura, Collective Modes and Response Functions for the BGD Model Progress of Theoretical Physics. ,vol. 61, pp. 1- 10 ,(1979) , 10.1143/PTP.61.1
Kiyomi Okamoto, Hidetoshi Nishimori, Yoshihiro Taguchi, A Numerical Study of Spin-1/2 Alternating Antiferromagnetic Heisenberg Linear Chains Journal of the Physical Society of Japan. ,vol. 55, pp. 1458- 1465 ,(1986) , 10.1143/JPSJ.55.1458
Takashi Nakano, Hidetoshi Fukuyama, Dimerization and Solitons in One-Dimensional XY-Z Antiferromagnets Journal of the Physical Society of Japan. ,vol. 50, pp. 2489- 2499 ,(1981) , 10.1143/JPSJ.50.2489
James D. Johnson, Samuel Krinsky, Barry M. McCoy, Vertical-Arrow Correlation Length in the Eight-Vertex Model and the Low-Lying Excitations of theX−Y−ZHamiltonian Physical Review A. ,vol. 8, pp. 2526- 2547 ,(1973) , 10.1103/PHYSREVA.8.2526
P. Pincus, Instability of the uniform antiferromagnetic chain Solid State Communications. ,vol. 9, pp. 1971- 1973 ,(1971) , 10.1016/0038-1098(71)90593-X
Takashi Nakano, Hidetoshi Fukuyama, Solitons in Spin-Peierls Systems and Applications to Polyacetylene Journal of the Physical Society of Japan. ,vol. 49, pp. 1679- 1691 ,(1980) , 10.1143/JPSJ.49.1679