Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2006-07-25
Phys. Rev. Lett. 97, 176403 (2006)
Physics
Condensed Matter
Disordered Systems and Neural Networks
4 pages, 3 figures
Scientific paper
10.1103/PhysRevLett.97.176403
The ground state of a double-exchange model for orbitally degenerate $e_g$ electrons with Jahn-Teller lattice coupling and weak disorder is found to be spatially inhomogeneous near half filling. Using a real space Monte-Carlo method we show that doping the half-filled orbitally ordered insulator leads to the appearance of hole-rich disordered regions in an orbitally ordered environment. The doping driven orbital order to disorder transition is accompanied by the emergence of metallic behavior. We present results on transport and optical properties along with spatial patterns for lattice distortions and charge densities, providing a basis for an overall understanding of the low doping phase diagram of La$_{1-x}$Ca$_x$MnO$_3$.
Kampf Arno P.
Kumar Sanjeev
Majumdar Pinaki
No associations
LandOfFree
Domain Formation and Orbital Ordering Transition in a Doped Jahn-Teller Insulator does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Domain Formation and Orbital Ordering Transition in a Doped Jahn-Teller Insulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Domain Formation and Orbital Ordering Transition in a Doped Jahn-Teller Insulator will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-666017