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Exchange interaction effects on the optical properties of LuMnO3
A. B. Souchkov, J. R. Simpson, H. D. Drew +6
We have measured the optical conductivity of single crystal LuMnO3 from 10 to 45000 cm-1 at temperatures between 4 and 300 K. A symmetry allowed on-site Mn - transition near…
Dynamical mean field theory for transition temperature and optics of CMR manganites
B. Michaelis, A. J. Millis
A tight binding parametrization of local spin density functional band theory is combined with a dynamical mean field treatment of correlations to obtain a theory of the magnetic tr…
Dynamical Mean Field Theory of Double Perovskite Ferrimagnets
K. Phillips, A. Chattopadhyay, A. J. Millis
The dynamical mean field method is used to analyze the magnetic transition temperature and optical conductivity of a model for the ferrimagnetic double perovskites such as $Sr_2FeM…
On the residual resistivity near a two dimensional metamagnetic quantum critical point
Yong Baek Kim, A. J. Millis
The behavior of the residual (impurity-dominated) resistivity is computed for a material near a two dimensional quantum critical point characterized by a divergent susceptibi…
On quantum Griffiths effects in metallic systems
A. J. Millis, D. Morr, J. Schmalian
Elementary analytical extremal statistics arguments are used to analyse the possibility of quantum Griffiths effects in nearly critical systems with overdamped dynamics, such as ar…
Gaussian fluctuation corrections to the BCS mean field gap amplitude at zero temperature
S. Kos, A. J. Millis, A. I. Larkin
The leading (Gaussian) fluctuation correction to the weak coupling zero temperature BCS superconducting gap equation is computed. We find that the dominant contribution comes from…