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Sublattice Magnetization, Internal Energy, and Specific Heat of Magnetic Three‐Layer Superlattices and Two‐Dimensional Three‐Layer Systems
Author(s) -
Qiu RongKe,
Zhang ZhiDong
Publication year - 2002
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 - 10.1002/1521-3951(200208)232:2<340::aid-pssb340>3.0.co;2-3
Subject(s) - ferrimagnetism , condensed matter physics , magnetization , internal energy , superlattice , spin wave , layer (electronics) , spin (aerodynamics) , specific heat , materials science , exchange interaction , ferromagnetism , physics , thermodynamics , magnetic field , quantum mechanics , nanotechnology
The layer‐sublattice magnetization, the internal energy, and the specific heat in Heisenberg ferrimagnetic three‐layer superlattices and two‐dimensional three‐layer systems are calculated by employing retarded Green's functions within the framework of the linear spin‐wave approximation. The effect of the spin values on the layer‐sublattice magnetization at zero temperature is studied. The effects of the exchange constants, the spin values, and the temperature on the internal energy and the specific heat of the two systems are investigated systematically.