Growth of single crystals of lanthanum aluminate
1991; Elsevier BV; Volume: 109; Issue: 1-4 Linguagem: Inglês
10.1016/0022-0248(91)90217-s
ISSN1873-5002
AutoresG. W. Berkstresser, A.J. Valentino, C.D. Brandle,
Tópico(s)Advanced Antenna and Metasurface Technologies
ResumoSingle crystals of lanthanum aluminate have application as a substrate for deposition of thin films of the high temperature superconductors such as YBa2Cu3O7. Single crystals have been grown by the Czochralski technique in the 〈100〉 pseudo-cubic crystallographic orientations in sizes from 16 mm weighing 180 g to 59 mm diameter weighing 2500 g. The design of the crystal growth furnace used for the Czochralski growth of lanthanum aluminate required some modifications from the geometry suitable for the growth of lower melting temperature oxides.
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