3 papers
cond-mat.str-el2007
Cooperative electron-phonon interaction in molecular chains
Sudhakar Yarlagadda
Using a controlled analytic treatment, we derive a model that generically describes cooperative strong electron-phonon interaction (EPI) in one-band and two-band Jahn-Teller (JT) s…
cond-mat.str-el2003
Orbital ordering in undoped manganites using Jahn-Teller interaction
Sudhakar Yarlagadda, Manidipa Mitra
To understand the orbital ordering of in the ground state, we study it in the A-type spin antiferromagnetic state. We calculate the two-dimensional response functions ass…
cond-mat.str-el1998
Small Magnetic Polaron Picture of Colossal Magnetoresistance in Manganites
Sudhakar Yarlagadda
We present a small-but-sizeable magnetic polaron picture where transport at high temperatures is activated while at low temperatures it is band-like. We show that both double excha…