Liquid-Phase Homoepitaxial Growth of Rare-Earth Orthoferrites
- 15 March 1971
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 42 (4) , 1554-1556
- https://doi.org/10.1063/1.1660339
Abstract
Homoepitaxial deposits of several rare‐earth orthoferrites have been grown from xPbO:B2O3 solutions. Single‐crystal epitaxial layers to 1‐mm thick of Sm0.55Tb0.45FeO3, TbFeO3, and YbFeO3 have been grown on oriented (001) substrates of the respective materials. Deposition rates of approximately 4 μ/h are utilized during growth. Selection of an appropriate solvent is important for successful growth. Depositions from 20PbO:B2O3(wt) result in excessive heterogeneous nucleation and polycrystalline layers when grown above 990°C. Crystallization of rare‐earth borate interferes with orthoferrite growth when carried out at lower temperatures. The solvent 50PbO:B2O3 (wt) has been found to minimize heterogeneous nucleation and eliminate crystallization of rare‐earth borate. The growth method is described in detail, including design of the platinum boat, temperature profiles and their effects on growth, temperature programming, and the experimental difficulties encountered in utilizing the highly volatile highly corrosive PbO:B2O3 solvents.This publication has 1 reference indexed in Scilit:
- Lead substitution in flux grown single crystal rare earth orthoferritesMaterials Research Bulletin, 1968