Quantum-Classical Crossover in Temperature Dependence of the Magnetic Susceptibility of Haldane System

1995 ◽  
Vol 64 (10) ◽  
pp. 4051-4052 ◽  
Author(s):  
Shoji Yamamoto
1988 ◽  
Vol 157 (Part_2) ◽  
pp. 587-592 ◽  
Author(s):  
Toshio Itami ◽  
Mitsuo Shimoji ◽  
Kenji Shimokawa

1998 ◽  
Vol 53 (1) ◽  
pp. 58-62
Author(s):  
W. Münch ◽  
L. Walz ◽  
M. König

The magnetic properties of the title compound were re-investigated, since a new phase below 240 K has recently been identified. The exchange parameters were evaluated from the temperature dependence of the magnetic susceptibility with a Heisenberg operator taking into account the high pseudo-symmetry of the tetrameric units observed.


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