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Crystallization of a germanium melt in an external electric field
Author(s) -
Kanter Yu. O.
Publication year - 1983
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170181203
Subject(s) - germanium , supercooling , crystallization , nucleation , materials science , electric field , overheating (electricity) , germanium compounds , thermodynamics , condensed matter physics , optoelectronics , electrical engineering , silicon , physics , quantum mechanics , engineering
Data are presented on experimental studies of the influence of an external electric field on crystallization of a germanium melt under the layer of a B 2 O 3 flux. It has been found out that with the field supercoolings of the melt sharply change. This effect is due to the change of the number of active nucleation centres at the germanium – B 2 O 3 flux interface. The maximum supercoolings of the germanium melt ΔT − = 190 K were obtained when a negative potential was connected to germanium. The dependences of supercooling on preliminary melt overheating were measured.