4 papers
Two-Dimensional Confinement of 3d1 Electrons in LaTiO3/LaAlO3 Multilayers
S. S. A. Seo, M. J. Han, G. W. J. Hassink +12
We report spectroscopic ellipsometry measurements of the anisotropy of the interband transitions parallel and perpendicular to the planes of (LaTiO3)n(LaAlO3)5 multilayers with n =…
Effects of oxygen-reducing atmosphere annealing on LaMnO epitaxial thin films
W S Choi, Z Marton, S Y Jang +8
We investigated the effects of annealing on LaMnO epitaxial thin films grown by pulsed laser deposition and propose an efficient method of characterizing their stoichiometry. S…
Dimensional crossover of polaron dynamics in Nb:SrTiO3/SrTiO3 superlattices: Possible mechanism of thermopower enhancement
Woo Seok Choi, Hiromichi Ohta, Soon Jae Moon +2
Using optical spectroscopy, we investigated the electrodynamic properties of Nb:SrTiO3/SrTiO3 superlattices. In these superlattices, a large enhancement of the Seebeck coefficient…
Optical spectroscopic investigation on the coupling of electronic and magnetic structure in multiferroic hexagonal RMnO3 (R = Gd, Tb, Dy, and Ho) thin films
Woo Seok Choi, Soon Jae Moon, Sung Seok A. Seo +5
We investigated the effects of temperature and magnetic field on the electronic structure of hexagonal RMnO3 (R = Gd, Tb, Dy, and Ho) thin films using optical spectroscopy. As the…