Pyrochlore microdomain formation in fluorite oxides
نویسندگان
چکیده
منابع مشابه
Magnetic pyrochlore oxides
Within the past 20 years or so, there has occurred an explosion of interest in the magnetic behavior of pyrochlore oxides of the type A 2 B 4+ 2 O7 where A is a rare-earth ion and B is usually a transition metal. Both the A and B sites form a network of corner-sharing tetrahedra which is the quintessential framework for a geometrically frustrated magnet. In these systems the natural tendency to...
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where t is the transfer integral for nearest-neighbor sites hiji on the pyrochlore lattice, JH represents the Hund’s-rule coupling between the itinerant electron spin ~si and the localized spin ~ Si, while JAF is the super-exchange antiferromagnetic interaction between the neighboring localized spins. The first two terms induce the double-exchange ferromagnetic interactions through the kinetic ...
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ژورنال
عنوان ژورنال: Journal of Solid State Chemistry
سال: 1986
ISSN: 0022-4596
DOI: 10.1016/0022-4596(86)90253-7