scholarly journals GREEN'S FUNCTION THEORY OF PHASE TRANSITION IN ORDER-DISORDER TYPE FERROELECTRICS AND ANTIFERROELECTRICS

1988 ◽  
Vol 37 (9) ◽  
pp. 1406
Author(s):  
LI TING ◽  
QIN ZI-KAI
Keyword(s):  
Phase Transition ◽  
Green’S Function ◽  
Green's Function ◽  
Function Theory ◽  
Disorder Type

GREEN'S FUNCTION THEORY OF THE DOPED ANISOTROPIC ANTIFERROMAGNET

2000 ◽  
Vol 14 (10) ◽  
pp. 1037-1057
Author(s):  
ZHE CHANG
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Green’S Function ◽  
Green's Function ◽  
Doping Concentration ◽  
Function Theory ◽  
High Temperature Superconductors ◽  
Explicit Dependence ◽  
Anisotropic Parameter ◽  
Doping Density

The Green's function theory of the t–J model is generalized to investigate phase diagram and magnetic properties of the doped anisotropic antiferromagnet, which is believed to describe the elementary properties of the high-temperature superconductors. Antiferromagnetic–metalic phase transition is shown. The explicit dependence of the Néel temperature and sublattice magnetization of the anisotropic doped antiferromagnets on anisotropic parameter ς, doping density δ and parameters of the t–J model are obtained for small doping concentration.

Green's function theory of phase transition in PbHPO4and PbDPO4ferroelectrics

1988 ◽  
Vol 77 (1) ◽  
pp. 21-29 ◽  
Author(s):  
Wang Chunlei ◽  
Qin Zikai ◽  
Zhang Jingbo
Keyword(s):  
Phase Transition ◽  
Green’S Function ◽  
Green's Function ◽  
Function Theory
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