5 papers · 1 filter
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 (…
Superconductivity, phase fluctuations and the c-axis conductivity of bilayer high temperature superconductors
N. Shah, A. J. Millis
We present a theory of the interplane conductivity of bilayer high temperature superconductors, focusing on the effect of quantal and thermal fluctuations on the oscillator strengt…
A dynamical mean field theory for the magnetic transition temperature of ferromagnetic semiconductors
A. Chattopadhyay, S. Das Sarma, A. J. Millis
This paper has been withdrawn by the authors due to a numerical error. A revised version will be posted shortly.
Application of the scattering rate sum-rule to the interplane optical conductivity of high temperature superconductors: pseudogap and bi-layer effects
N. Shah, A. J. Millis
We use a recently proposed model of the interplane conductivity of high temperature superconductors to investigate the `scattering rate sum-rule' introduced by Basov and co-workers…