scholarly journals Partition function step-by-step integration without approximations. One-dimensional ferromagnet with long-range potential

1995 ◽  
pp. 74
Author(s):  
Kozitsky
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
E. S. Kozlyakova ◽  
A. V. Moskin ◽  
P. S. Berdonosov ◽  
V. V. Gapontsev ◽  
S. V. Streltsov ◽  
...  

AbstractUniform quasi-one-dimensional integer spin compounds are of interest as a potential realization of the Haldane conjecture of a gapped spin liquid. This phase, however, has to compete with magnetic anisotropy and long-range ordered phases, the implementation of which depends on the ratio of interchain J′ and intrachain J exchange interactions and both uniaxial D and rhombic E single-ion anisotropies. Strontium nickel selenite chloride, Sr2Ni(SeO3)2Cl2, is a spin-1 chain system which passes through a correlations regime at Tmax ~ 12 K to long-range order at TN = 6 K. Under external magnetic field it experiences the sequence of spin-flop at Bc1 = 9.0 T and spin-flip transitions Bc2 = 23.7 T prior to full saturation at Bsat = 31.0 T. Density functional theory provides values of the main exchange interactions and uniaxial anisotropy which corroborate the experimental findings. The values of J′/J = 0.083 and D/J = 0.357 place this compound into a hitherto unoccupied sector of the Sakai-Takahashi phase diagram.


1997 ◽  
Vol 8 (3) ◽  
pp. 275-282 ◽  
Author(s):  
Thomas Wyttenbach ◽  
Gert Helden ◽  
Joseph J. Batka ◽  
Douglas Carlat ◽  
Michael T. Bowers

1998 ◽  
Vol 108 (22) ◽  
pp. 9202-9205 ◽  
Author(s):  
Akiyoshi Hishikawa ◽  
Hirokazu Sato ◽  
Kaoru Yamanouchi
Keyword(s):  

1997 ◽  
Vol 30 (2) ◽  
pp. 501-505 ◽  
Author(s):  
Aernout C D van Enter ◽  
Boguslaw Zegarlinski

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