Spectral excitations in the one-dimensional spin-½ dimerized Heisenberg chain: A renormalization-group approach

1979 ◽  
Vol 19 (5) ◽  
pp. 2637-2644 ◽  
Author(s):  
J. N. Fields
Keyword(s):  
Renormalization Group ◽  
Heisenberg Chain ◽  
Group Approach ◽  
One Dimensional ◽  
Renormalization Group Approach ◽  
The One

scholarly journals Renormalization Group Approach to a One-Dimensional Cooperative T–e Jahn-Teller System

1977 ◽  
Vol 32 (1) ◽  
pp. 111-112
Author(s):  
S. Brühl ◽  
E. Sigmund
Keyword(s):  
Free Energy ◽  
Renormalization Group ◽  
Ising Model ◽  
Linear Chain ◽  
Group Approach ◽  
One Dimensional ◽  
Renormalization Group Approach ◽  
Jahn Teller ◽  
Jahn Teller Effect ◽  
The One

Abstract A linear chain of T-e molecules exhibiting the cooperative Jahn-Teller effect is considered. Following Nauenberg's1 treatment of the one-dimensional Ising model a renormalization group approach is used. The series-expansion of the free energy is put into a closed form.

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