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キーワード:
manganites; CE phase; orbital excitations
要旨:
Using a finite-temperature diagonalization technique for a root8 x
root8 site cluster, the charge-exchange phase was found to be
stabilized together with charge order by the cooperative Jahn-Teller
interaction between next-nearest Mn neighbors in the case of small
antiferromagnetic interactions between t(2g) electrons. (C) 2003
Elsevier B.V. All rights reserved.