DOUBLE EXCHANGE INTERACTION IN CAMNO3-DELTA

Authors
BRIATICO J ALASCIO B ALLUB R BUTERA A CANEIRO A CAUSA MT TOVAR M
Citation
J. Briatico et al., DOUBLE EXCHANGE INTERACTION IN CAMNO3-DELTA, Czechoslovak journal of Physics, 46, 1996, pp. 2013-2014
Citations number
5
Categorie Soggetti
Physics
Journal title
Czechoslovak journal of Physics → ACNP
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
4
Pages
2013 - 2014
Database
ISI
SICI code
0011-4626(1996)46:<2013:DEIIC>2.0.ZU;2-#
Abstract
We have measured electrical resistivity rho and magnetic susceptibilit y chi for CaMnO3-delta with 0 less than or equal to delta less than or equal to 0.34. Electron hopping between FM clusters formed around the O-vacancies due to double-exchange interaction lowers rho(T). An exte nsion of the Anderson-Hasegawa model including the energy differences in crystalline Mn sites is presented. Comparison is made with the case of Y substitution for Ca.