TY - JOUR
T1 - Paramagnetic-ferromagnetic transition in a double-exchange model
AU - Kogan, Eugene
AU - Auslender, Mark
PY - 2006/5/1
Y1 - 2006/5/1
N2 - We study paramagnetic-ferromagnetic transition due to exchange interaction between classical localized spins on a lattice and conduction electrons. By solving the equations of dynamical mean field theory, we find explicit formula for Curie temperature at arbitrary Hund coupling, electron band structure and concentration. The results of numerical simulations of the Curie temperature for the semi-circular electron density of states model are presented.
AB - We study paramagnetic-ferromagnetic transition due to exchange interaction between classical localized spins on a lattice and conduction electrons. By solving the equations of dynamical mean field theory, we find explicit formula for Curie temperature at arbitrary Hund coupling, electron band structure and concentration. The results of numerical simulations of the Curie temperature for the semi-circular electron density of states model are presented.
KW - Double-exchange model
KW - Dynamical mean field theory
KW - Ferromagnetic order
KW - Magnetism
KW - Strong correlations
UR - http://www.scopus.com/inward/record.url?scp=33646392718&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2006.01.009
DO - 10.1016/j.physb.2006.01.009
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AN - SCOPUS:33646392718
SN - 0921-4526
VL - 378-380
SP - 286
EP - 287
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - SPEC. ISS.
ER -