Solutal convection during melt growth of alloyed semiconductor crystals in a steady magnetic field

2002 ◽  
Author(s):  
N. Ma
Keyword(s):  
Magnetic Field ◽  
Melt Growth ◽  
Solutal Convection ◽  
Semiconductor Crystals ◽  
Steady Magnetic Field ◽  
Alloyed Semiconductor

scholarly journals Growth of Binary Alloyed Semiconductor Crystals by the Vertical Bridgman-Stockbarger Process with a Strong Magnetic Field

2005 ◽  
Vol 127 (3) ◽  
pp. 523-528 ◽  
Author(s):  
Stephen J. LaPointe ◽  
Nancy Ma ◽  
D. W. Mueller
Keyword(s):  
Magnetic Field ◽  
Axial Magnetic Field ◽  
Convective Transport ◽  
Transient Model ◽  
Buoyant Convection ◽  
Semiconductor Crystals ◽  
Thermally Driven ◽  
Vertical Bridgman ◽  
Compositional Variations ◽  
Alloyed Semiconductor

This paper presents a model for the unsteady species transport for the growth of alloyed semiconductor crystals during the vertical Bridgman-Stockbarger process with a steady axial magnetic field. During growth of alloyed semiconductors such as germanium-silicon (GeSi) and mercury-cadmium-telluride (HgCdTe), the solute’s concentration is not small, so that density differences in the melt are very large. These compositional variations drive compositionally driven buoyant convection, or solutal convection, in addition to thermally driven buoyant convection. These buoyant convections drive convective transport, which produces nonuniformities in the concentration in both the melt and the crystal. This transient model predicts the distribution of species in the entire crystal grown in a steady axial magnetic field. The present study presents results of concentration in the crystal and in the melt at several different stages during crystal growth.

Reduced Wettability of Solids by a Liquid Ga–In–Sn Alloy in a Steady Magnetic Field

2018 ◽  
Vol 122 (48) ◽  
pp. 27451-27455 ◽  
Author(s):  
Chuanjun Li ◽  
Yang Cao ◽  
Stephanie Lippmann ◽  
Zhongming Ren ◽  
Markus Rettenmayr
Keyword(s):  
Magnetic Field ◽  
Steady Magnetic Field

Graded Coating Produced by Laser Melt Injection Under Steady Magnetic Field

2016 ◽  
Vol 43 (5) ◽  
pp. 0503005
Author(s):  
宋诗英 Song Shiying ◽  
王梁 Wang Liang ◽  
胡勇 Hu Yong ◽  
姚建华 Yao Jianhua
Keyword(s):  
Magnetic Field ◽  
Graded Coating ◽  
Steady Magnetic Field
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