15 papers
Optical properties of (Pr,Ce)2CuO4
A. Zimmers, N. Bontemps, R. P. S. M. Lobo +5
We studied the optical conductivity of electron doped Pr{1-x)Ce(x)CuO(4) from the underdoped to the overdoped regime. The observation of low to high frequency spectral weight trans…
Phonon effects in molecular transistors
A. Mitra, I. Aleiner, A. J. Millis
A rate equation formalism is used to determine the effect of electron-phonon coupling on the conductance of a molecule. Interplay between the phonon-induced renormalization of the…
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…
Dynamical mean-field theory of electron-phonon interaction in correlated electron materials: general results and application to doped Mott insulators
A. Deppeler, A. J. Millis
The dynamical mean-field method is used to formulate a computationally tractable theory of electron-phonon interactions in systems with arbitrary local electron-electron interactio…
Theory of the Quantum Paraelectric - Ferroelectric Transition
R. Roussev, A. J. Millis
A realistic theory of the quantum paraelectric - ferroelectric transition is presented, involving parameters determined from band calculations and a renormalization group treatment…
Metamagnetic Quantum Criticality
A. J. Millis, A. J. Schofield, G. G. Lonzarich +1
A renormalization group treatment of metamagnetic quantum criticality in metals is presented. In clean systems the universality class is found to be of the overdamped, conserving (…