Segregation during Bridgman crystal growth in space with an axial magnetic field

N. Ma; J. S. Walker

Segregation during Bridgman crystal growth in space with an axial magnetic field

N. Ma, J. S. Walker

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Abstract

This paper treats the mass transport of a dilute dopant during the growth of a semiconductor crystal by the Bridgman process in space. An axial magnetic field damps the buoyant convection driven by the residual acceleration. The unsteady mass transport problem is treated for the entire period of time to grow the crystal by using asymptotic solutions for the temperature and melt velocity. The results show that essentially diffusion-controlled mass transport can be achieved with quite modest magnetic fields.

Original language	English
Pages (from-to)	122-125
Number of pages	4
Journal	Magnetohydrodynamics
Volume	35
Issue number	2
State	Published - 1999
Externally published	Yes

Funding

This research was supported by the University of Missouri Research Board, by the National Aeronautics and Space Administration under Grant NAG8-1453, and by the National Science Foundation under Grant CTS 94-19484.

Funders	Funder number
University of Missouri Research Board
National Science Foundation	CTS 94-19484
National Aeronautics and Space Administration	NAG8-1453
National Science Foundation

Cite this

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title = "Segregation during Bridgman crystal growth in space with an axial magnetic field",

abstract = "This paper treats the mass transport of a dilute dopant during the growth of a semiconductor crystal by the Bridgman process in space. An axial magnetic field damps the buoyant convection driven by the residual acceleration. The unsteady mass transport problem is treated for the entire period of time to grow the crystal by using asymptotic solutions for the temperature and melt velocity. The results show that essentially diffusion-controlled mass transport can be achieved with quite modest magnetic fields.",

author = "N. Ma and Walker, {J. S.}",

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AU - Ma, N.

AU - Walker, J. S.

PY - 1999

Y1 - 1999

N2 - This paper treats the mass transport of a dilute dopant during the growth of a semiconductor crystal by the Bridgman process in space. An axial magnetic field damps the buoyant convection driven by the residual acceleration. The unsteady mass transport problem is treated for the entire period of time to grow the crystal by using asymptotic solutions for the temperature and melt velocity. The results show that essentially diffusion-controlled mass transport can be achieved with quite modest magnetic fields.

AB - This paper treats the mass transport of a dilute dopant during the growth of a semiconductor crystal by the Bridgman process in space. An axial magnetic field damps the buoyant convection driven by the residual acceleration. The unsteady mass transport problem is treated for the entire period of time to grow the crystal by using asymptotic solutions for the temperature and melt velocity. The results show that essentially diffusion-controlled mass transport can be achieved with quite modest magnetic fields.

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M3 - Article

AN - SCOPUS:85044676993

SN - 0024-998X

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JO - Magnetohydrodynamics

JF - Magnetohydrodynamics

IS - 2

ER -

Segregation during Bridgman crystal growth in space with an axial magnetic field

Abstract

Funding

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