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5 papers · 2 filters
Effect of oxygen concentration on the structural and magnetic properties of LaRh1/2Mn1/2O3 thin films
W. C. Sheets, A. E. Smith, M. A. Subramanian +1
Epitaxial LaRh1/2Mn1/2O3 thin films have been grown on (001)-oriented LaAlO3 and SrTiO3 substrates using pulsed laser deposition. The optimized thin film samples are semiconducting…
Elastic effects of vacancies in strontium titanate: Short- and long-range strain fields, elastic dipole tensors, and chemical strain
Daniel A. Freedman, D. Roundy, T. A. Arias
We present a study of the local strain effects associated with vacancy defects in strontium titanate and report the first calculations of elastic dipole tensors and chemical strain…
Interlayer coupling in EuS/SrS, EuS/PbSe and EuS/PbTe magnetic semiconductor superlatices
H. Kepa, C. F. Majkrzak, A. Sipatov +3
Neutron reflectivity studies of EuS/SrS, EuS/PbSe, and EuS/PbTe all-semiconductor superlattices were carried out in search for exchange interlayer coupling. A relatively weak antif…
First principles studies of SnTiO3 perovskite as a potential ferroelectric material
S. F. Matar, M. A. Subramanian, I. Baraille
In the context of the search for environment-respectful, lead- and bismuth- free chemical compounds for devices such as actuators, SnTiO3 (ST) is investigated from first principles…
Dielectric and polarization experiments in high loss dielectrics: a word of caution
Mario Maglione, M. A. Subramanian
The recent quest for improved functional materials like high permittivity dielectrics and/or multiferroics has triggered an intense wave of research. Many materials have been check…