Strain Fields and Critical Phenomena in Manganites I: Spin-Lattice Hamiltonians
Statistical Mechanics
2023-03-29 v2
Abstract
We use a model Hamiltonian to study critical phenomena in manganites. This Hamiltonian includes long-range strain interactions, and a coupling between the magnetic order parameter and the strain field. We perform a perturbative renormalization group (RG) analysis and calculate the static critical exponents, correct to the one-loop level. We compare our RG results with many experiments on doped manganite critical systems. Our theory is in excellent agreement with the experimental values for the critical exponents.
Keywords
Cite
@article{arxiv.2211.09384,
title = {Strain Fields and Critical Phenomena in Manganites I: Spin-Lattice Hamiltonians},
author = {Rohit Singh and Sanjay Puri},
journal= {arXiv preprint arXiv:2211.09384},
year = {2023}
}