You are not logged in to this journal. Log in
| Subscription Information
Phys. Rev. B 73, 041104(R) (2006) [4 pages]Dynamical mean-field study of model double-exchange superlattices
Received 23 November 2005; revised 30 December 2005; published 19 January 2006
A theoretical study of [001] "double-exchange" superlattices is presented. The superlattice is defined in terms of an ABO3 perovskite crystal. Itinerant electrons hop among the B sites according to a nearest-neighbor tight binding model and are coupled to classical "core spins." The A sites contain ionic charges arranged to form a [001] superlattice that forces a spatial variation of the mobile electron charge on the B sites. The double-exchange interaction is treated by the dynamical mean-field approximation, while the long-range Coulomb interaction is taken into account by the Hartree approximation. We find the crucial parameter is the Coulomb screening length. Different types of phases are distinguished and the interfaces between them classified. ©2006 The American Physical Society
REFERENCES (18)
For access to fully linked references, you need to log in.
For access to fully linked references, you need to Log in.
CITING ARTICLESFor access to citing articles, you need to log in.
For access to citing articles, you need to Log in.
|
Article Tools
|
|||||||||
View Cart
Download Citation
MyScitation
Print View