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Surface Spin Waves in a Semi‐Infinite Magnetic Semiconductor with a Site‐Diluted Free Surface in the Narrow‐Band Limit
Author(s) -
Shen MingRong,
Shen WenZhong,
Li ZhenYa
Publication year - 1993
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.2221750219
Subject(s) - condensed matter physics , limit (mathematics) , semiconductor , surface (topology) , spin wave , free surface , dispersion (optics) , magnetic semiconductor , dispersion relation , physics , spin (aerodynamics) , surface wave , quantum mechanics , optics , mathematics , ferromagnetism , mathematical analysis , geometry , thermodynamics
The s—d (or s—f) Heisenberg interaction model is used to investigate the surface spin waves (SSW) in semi‐infinite magnetic semiconductors with a site‐diluted free surface in the narrow‐band limit. The dispersion relations of surface excitations are obtained by use of Green's function theory. Results in some particular cases are discussed.