Dielectric properties of lanthanum gallate (LaGaO3) crystal
- 15 April 1994
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 75 (8) , 4126-4130
- https://doi.org/10.1063/1.355993
Abstract
Dielectric properties of single crystals of LaGaO3 have been measured at low frequencies as well as in the microwave region over a wide temperature range. Measurements performed on two crystal orientations, viz. (001) and (110), show dielectric anomalies at a transition near 145 °C. Dielectric anisotropy below, but not above, 145 °C confirm the previously reported orthorhombic symmetry at room temperature and rhombohedral symmetry above 145 °C. Domain wall motion which arises as a result of a phase transition has been observed around 145 °C.This publication has 11 references indexed in Scilit:
- Problems in epitaxial growth of high-Tc superconductorsJournal of Crystal Growth, 1991
- Thermal analysis of rare earth gallates and aluminatesJournal of Materials Research, 1990
- Surface roughening associated with ∼140 °C transition of a LaGaO3 substrate for high T c superconducting filmsApplied Physics Letters, 1989
- Lanthanum gallate substrates for epitaxial high-temperature superconducting thin filmsApplied Physics Letters, 1988
- Microwave Measurement of Dielectric Properties of Low-Loss Materials by the Dielectric Rod Resonator MethodIEEE Transactions on Microwave Theory and Techniques, 1985
- Simple ways of determining perovskite structuresActa Crystallographica Section A, 1975
- Perovskite-like rare earth gallium oxides prepared at atmospheric pressureMaterials Research Bulletin, 1974
- Analysis and Evaluation of a Method of Measuring the Complex Permittivity and Permeability Microwave InsulatorsIEEE Transactions on Microwave Theory and Techniques, 1970
- A Dielectric Resonator Method of Measuring Inductive Capacities in the Millimeter RangeIEEE Transactions on Microwave Theory and Techniques, 1960
- Crystallographic studies of perovskite-like compounds. IV. Rare earth scandates, vanadites, galliates, orthochromitesActa Crystallographica, 1957