234 citations · 418 across the 8 of their papers we have counts for
8 papers
Electron-phonon coupling in DyFeO3 revealed by infrared spectroscopy
A. D. LaForge, J. Whalen, T. Siegrist +2
We have investigated crystal field and phonon dynamics of the multiferroic orthoferrite DyFeO via polarized infrared spectroscopy. Reflectance of single crystals was measured i…
Phonon splitting and anomalous enhancement of infrared-active modes in BaFeAs
A. A. Schafgans, B. C. Pursley, A. D. LaForge +3
We present a comprehensive infrared spectroscopic study of lattice dynamics in the pnictide parent compound BaFeAs. In the tetragonal structural phase, we observe the two d…
Electronic correlations and unconventional spectral weight transfer in BaFeCoAs
A. A. Schafgans, S. J. Moon, B. C. Pursley +7
We report an infrared optical study of the pnictide high-temperature superconductor BaFeCoAs and its parent compound BaFeAs. We demonstrate that…
Fabrication and Characterization of Topological Insulator BiSe Nanocrystals
S. Y. F. Zhao, C. Beekman, L. J. Sandilands +6
In the recently discovered class of materials known as topological insulators, the presence of strong spin-orbit coupling causes certain topological invariants in the bulk to diffe…
Towards a two-dimensional superconducting state of LaSrCuO in a moderate external magnetic field
A. A. Schafgans, A. D. LaForge, S. V. Dordevic +7
We report a novel aspect of the competition and coexistence between magnetism and superconductivity in the high- cuprate LaSrCuO (La214). With a modest m…
Optical characterization of BiSe in a magnetic field: infrared evidence for magnetoelectric coupling in a topological insulator material
A. D. LaForge, A. Frenzel, B. C. Pursley +4
We present an infrared magneto-optical study of the highly thermoelectric narrow-gap semiconductor BiSe. Far-infrared and mid-infrared (IR) reflectance and transmission mea…