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The Magnetic Susceptibilities of Some Liquid Chalcogenides
Author(s) -
Uemura O.,
Satow T.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220980136
Subject(s) - diamagnetism , condensed matter physics , melting point , stoichiometry , magnetic susceptibility , electrical resistivity and conductivity , electron , critical point (mathematics) , chemistry , materials science , chemical bond , magnetic field , physics , mathematical analysis , mathematics , organic chemistry , quantum mechanics
Abstract The magnetic susceptibilities for seven binary alloy systems (SnTe, SnSe, InTe, InSe, AgTe, AgSe and AgS) are measured as a funtion of temperature and composition. The diamagnetic susceptibilities of these systems fall rapidly on melting except for the InSe system, and decrease gradually with increasing temperature in the liquid state. The change of magnetic susceptibility at the melting point is considerably large in SnTe and SnSe, while rather small in Ag 2 X (X: Te, Se, and S). Diamagnetic maxima appeared around the stoichiometric composition (SnTe, SnSe, In 2 Te 3 , In 2 Se 3 , and Ag 2 X) and correspond well to minima in the electrical conductivity reported previously. These data suggest that electrons tend to localize at these compositions. Relationships between the degree of electron localization and the chemical bonding are discussed using the bond orbital approximation for the diamagnetism of semiconductors. The result indicates that the electron localization is stongly influenced by the bonding nature of anions.