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An Exactly Soluble Model of Singlet‐Ground‐State Ferromagnetism
Author(s) -
Kventsel G. F.,
Katriel J.
Publication year - 1978
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.2220890239
Subject(s) - ferromagnetism , singlet state , ground state , condensed matter physics , magnetization , range (aeronautics) , spin (aerodynamics) , phase transition , specific heat , state (computer science) , phase (matter) , physics , materials science , excited state , quantum mechanics , magnetic field , thermodynamics , mathematics , algorithm , composite material
A system of “atoms”, each one of which can be in one of two spin states, is considered. On the assumption that in one of the two atomic states a ferromagnetic interaction exists, the magnetic properties of the system are investigated. Various types of magnetic behaviour and phase transitions are found. Over a certain reasonable range of model parameters heat magnetization is obtained.

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