2 papers
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-mat2002
Quantum Treatment of the Anderson-Hasegawa Model -- Effects of Superexchange and Polarons
Manidipa Mitra, P. A. Sreeram, Sushanta Dattagupta
We revisit the Anderson-Hasegawa double-exchange model and critically examine its exact solution when the core spins are treated quantum mechanically.We show that the quantum effec…