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Magnetic lattice gas of molecules with internal structure

✍ Scribed by M. Dudek; A. Pȩkalski

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
621 KB
Volume
126
Category
Article
ISSN
0378-4371

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✦ Synopsis

model of a lattice gas is considered in which molecules interact via three kinds of forces: short-ranged intra-molecular magnetic (producing a net magnetic moment per particle), longranged magnetic between those moments and finally long-ranged non-magnetic. Using the molecular field approximation for both kinds of the long-ranged forces and calculating exactly the contribution from the short-ranged interactions, we construct and discuss phase diagrams for the system. We show that the location of the (multi-) critical points is quite sensitive to the strength and/or sign of the intra-molecular interaction, as well as to the form of the molecules.

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