Structural influence on ferromagnetic ordering in quasi-one-dimensional systems
作者:
M.M. Mestechkin,
G.E. Whyman,
期刊:
Molecular Physics
(Taylor Available online 1990)
卷期:
Volume 69,
issue 4
页码: 775-782
ISSN:0026-8976
年代: 1990
DOI:10.1080/00268979000100571
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The structural features of model quasi-one-dimensional systems have been elucidated which favour the formation of the singlet or the ferromagnetic ground state. For this purpose the spin extended Hartree-Fock PPP calculation is employed taking into account electron correlation. The decisive role is played by the extent of the orbital degeneracy (or quasi-degeneracy) amplifying the electron correlation effects.
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