255 citations · 445 across the 5 of their papers we have counts for
5 papers
Coexistence of Weak Ferromagnetism and Ferroelectricity in the High Pressure LiNbO3-type Phase of FeTiO3
T. Varga, A. Kumar, E. Vlahos +11
We report the magnetic and electrical characteristics of a polycrystalline specimen of FeTiO3 synthesized at high pressure that is isostructural with acentric LiNbO3 (LBO). Piezore…
Linear and Nonlinear Optical constants of BiFeO_3
Amit Kumar, R. Rai, Nikolas Podraza +12
Using spectroscopic ellipsometry, the refractive index and absorption versus wavelength of the ferroelectric antiferromagnet Bismuth Ferrite, BiFeO_3 is reported. The material has…
Two-phonon coupling to the antiferromagnetic phase transition in multiferroic BiFeO3
Mariola O. Ramirez, M. Krishnamurthi, S. Denev +11
A prominent band centered at around 1000-1300 cm-1 and associated with resonant enhancement of two-phonon Raman scattering is reported in multiferroic BiFeO3 thin films and single…
Moving Beyond a Simple Model of Luminescence Rings in Quantum Well Structures
D. Snoke, S. Denev, Y. Liu +5
The dramatic appearance of luminescence rings with radius of several hundred microns in quantum well structures can be understood through a fairly simple nonlinear model of the dif…
Stress Dependence of Exciton Relaxation Processes in Cu2O
S. Denev, D. W. Snoke
A comprehensive study of the exciton relaxation processes in Cu2O has led to some surprises. We find that the ortho-para conversion rate becomes slower at high stress, and that the…