Recent studies of the electromagnetic response of high-T c superconductors using terahertz,
infrared, and optical spectroscopies are reviewed. In combination these experimental …

Many experimental findings in the materials family of cuprate superconductors are
converging towards an electronic picture which involves strong local Coulomb correlations …

In Zn-doped single-crystal YBa 2 Cu 3− x Zn x O 7− δ we show that the normal-state Hall
angle varies as cot θ H= α T 2+ βx, as predicted by Anderson (T is temperature). The …

A systematic study of optical and transport properties of the Hubbard model, based on the
Metzner-Vollhardt dynamical mean-field approximation, is reviewed. This model shows …

Our present understanding of how the interactions between electrons affect the metallic state
has, for forty years, rested on the foundations of Landau's Fermi-liquid theory. It provides the …

We report the characterization of a scanning transmission X-ray microscope which makes
use of an undulator X-ray source, a high resolution scanning stage, and a 45 nm outer zone …

We measure directly both the real and imaginary parts of the sub-band-gap conductivity σ in
YBa 2 Cu 3 O 7 in the 15–80 cm− 1 frequency range using coherent time-domain terahertz …

Advances in low-dimensional superconductivity are often realized through improvements in
material quality. Apart from a small group of organic materials, there is a near absence of …

Since the discovery by the author and collaborators of superconductivity in the first truly
layered compound, TaS2 (pyridine) 1/2, there have been many types of layered …

The following sections are included: INTRODUCTION THE MIDINFRARED ABSORPTION
Overview La 2− x Sr x CuO 4 The T'Re2 CuO 4 compounds The bismuth-based materials …