Coherent potential approximation treatment of intermediate valence in rare‐earth compounds induced by alloying

1978 ◽  
Vol 49 (3) ◽  
pp. 2090-2092 ◽  
Author(s):  
J. W. Schweitzer
Keyword(s):  
Rare Earth ◽  
Coherent Potential Approximation ◽  
Rare Earth Compounds ◽  
Intermediate Valence ◽  
Potential Approximation

scholarly journals Magnetische Eigenschaften von AB2X2-Verbindungen im CaAl2Si2-Typ / Magnetic Properties of AB2X2 Compounds with the CaAl2Si2 Structure

1981 ◽  
Vol 36 (9) ◽  
pp. 1195-1197 ◽  
Author(s):  
Gerhard Zwiener ◽  
Hermann Neumann ◽  
Hans-Uwe Schuster
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Rare Earth Compounds ◽  
Intermediate Valence ◽  
Magnetic Susceptibilities ◽  
Temperature Range ◽  
Trivalent State ◽  
Good Agreement ◽  
The Rare Earth

Abstract The magnetic susceptibilities of ternary rare earth compounds with the CaAl2Si2 structure were measured in the temperature range of 80 to 290 K. YbZn2Sb2 and the compounds YbZn2-x;CuxX2 (X = P, As) with x < 1 show intermediate valence behaviour, that is a nonintegral occupancy of the 4f shell. Of the compounds EuZn2X2 (X = P, As, Sb) the results for those with X = P or Sb show good agreement with the theoretical values for Eu(II). In LuZnCuAs2 and RELi2X2 (RE = Ce, Pr, Nd, Tb; X = P, As, Sb, Bi) the trivalent state of the rare earth atoms can be established. With the exception of LuZnCuAs2 the susceptibilities of all of the investigated compounds follow the CURIEWEISS law.

The fermi momenta of some face centred cubic rare earth compounds

1965 ◽  
Vol 14 (3) ◽  
pp. 179-180 ◽  
Author(s):  
M.I. Darby ◽  
K.N.R. Taylor
Keyword(s):  
Rare Earth ◽  
Rare Earth Compounds
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