Comparing modified vertical gradient freezing with rotating magnetic fields or with steady magnetic and electric fields

X. Wang, N. Ma, D. F. Bliss, G. W. Iseler, P. Becla

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

This investigation treats the flow of molten gallium-antimonide and the dopant transport during the vertical gradient freezing process using submerged heater growth. A rotating magnetic field or a combination of steady magnetic and steady electric fields is used to control the melt motion. This paper compares the effects of these externally applied fields on the transport in the melt and on the dopant segregation in the crystal. Crystal growth in a combination of steady magnetic and electric fields produces a crystal with more radial and axial dopant homogeneity than growth in a rotating magnetic field.

Original languageEnglish
Pages (from-to)270-274
Number of pages5
JournalJournal of Crystal Growth
Volume287
Issue number2
DOIs
StatePublished - Jan 25 2006
Externally publishedYes

Funding

This research was supported by the US Air Force Office of Scientific Research under Grant FA9550-04-1-0249. The calculations were performed on the Cray X1 provided by the DoD High Performance Computing Modernization Program under Grant AFSNH2487.

FundersFunder number
Air Force Office of Scientific ResearchFA9550-04-1-0249

    Keywords

    • A1. Fluid flows
    • A1. Magnetic fields
    • A1. Segregation
    • A2. Growth from melt
    • A2. VGF technique

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