Orbitally Anisotropic Exchange and Crystal Field Effects on the Magnetic Susceptibility of (Eu[sub x]Y[sub 1−x])[sub 2]O[sub 3]

1972 ◽  
Author(s):  
Y. Yang ◽  
N. L. Huang Liu
Keyword(s):  
Magnetic Susceptibility ◽  
Crystal Field ◽  
Field Effects ◽  
Anisotropic Exchange

Crystal field effects and the co-operative state I. A primitive theory

1963 ◽  
Vol 276 (1364) ◽  
pp. 19-27 ◽  
Keyword(s):  
Curie Temperature ◽  
Saturation Magnetization ◽  
Exchange Interaction ◽  
Crystal Field ◽  
Matrix Elements ◽  
Field Effects ◽  
Singlet States ◽  
Exchange Effects ◽  
Anisotropic Exchange ◽  
Special Case

A primitive theory is developed for treating magnetic substances where exchange interaction is com parable with crystal field effects. The properties primarily considered are the Curie temperature and the saturation magnetization at 0°K ; the possibility of anisotropic exchange effects is considered briefly. Approximate formulae are found for the case where matrix elements of the exchange interaction between two low-lying states only are important. A fuller analysis is given for the special case of two singlet states, and the conditions for a co-operative state are com pared with those for an unsplit doublet.

Magnetic susceptibility, specific heat, and crystal-field effects in neodymium cuprate superconductors

1995 ◽  
Vol 52 (10) ◽  
pp. 7656-7662 ◽  
Author(s):  
Nithya Ravindran ◽  
T. Sarkar ◽  
S. Uma ◽  
G. Rangarajan ◽  
V. Sankaranarayanan
Keyword(s):  
Magnetic Susceptibility ◽  
Specific Heat ◽  
Crystal Field ◽  
Cuprate Superconductors ◽  
Field Effects
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