174 citations · 324 across the 4 of their papers we have counts for
4 papers
An infrared probe of the insulator-to-metal transition in GaMnAs and GaBeAs
B. C. Chapler, R. C. Myers, S. Mack +8
We report infrared studies of the insulator-to-metal transition (IMT) in GaAs doped with either magnetic (Mn) or non-magnetic acceptors (Be). We observe a resonance with a natural…
Impurity Band Conduction in a High Temperature Ferromagnetic Semiconductor
K. S. Burch, D. B. Shrekenhamer, E. J. Singley +7
The band structure of a prototypical dilute ferromagnetic semiconductor, GaMnAs, is studied across the phase diagram via optical spectroscopy. We prove that the Fermi…
Electron Dynamics in NdCeCuO: Evidence for the Pseudogap State and Unconventional c-axis Response
E. J. Singley, D. N. Basov, K. Kurahashi +2
Infrared reflectance measurements were made with light polarized along the a- and c-axis of both superconducting and antiferromagnetic phases of electron doped NdCe$_{.15}…
Interlayer Conductivity in the Superconductor Tl-Ba-Cu-O: Energetics and Energy Scales
A. S. Katz, S. I. Woods, E. J. Singley +5
We report on infrared studies of the c-axis electrodynamics of Tl-Ba-Cu-O (Tl-2201) crystals. A sum rule analysis reveals spectral weight shifts that can be interpreted as a kineti…