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cond-mat.mtrl-sci2005
Suppression of Magnetic Frustration by Doping in a nearest-neighbour anti-ferromagnetic triangular lattice
K. Sheshadri, A. Chainani
Based on experimental observations in A{x}MO{2} (A = Na, Li; M = Co, Ni), a model for suppression of magnetic frustration by electron doping in a nearest-neighbour antiferromagneti…
cond-mat.mtrl-sci1997
Theory of Size-Driven Transitions in Displacive and Order-Disorder Ferroelectrics
K. Sheshadri, Rangan Lahiri Pushan Ayyub, Shobo Bhattacharya
We present a simple theory for structural transitions in displacive ferroelectrics of the perovskite type. In our theory, the competition between the elastic energy cost for the di…