Fluctuations of melt temperature and growth rate during Bi4Ge3O12 growth

Zoltán Juhász, G. Szabó

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

An experimental method is described to determine the transfer function and the spectral sensitivity relating the growth rate, i.e. the crucible weight, to the melt temperature during Czochralski growth. When investigating the transient behaviour of the growth rate, a significant difference was found between the growth processes at pulling rates of 2 mm/h and 0. The results of the spectral analysis are in good agreement with theoretical predictions suggesting decreasing sensitivity of the weight signal at increasing frequency of the temperature oscillation. The results prove that Fourier analysis of the crucible (or crystal) weight is a sensitive method for monitoring oscillations of the growth rate during Czochralski growth.

Original languageEnglish
Pages (from-to)303-307
Number of pages5
JournalJournal of Crystal Growth
Volume79
Issue number1-3
DOIs
Publication statusPublished - Dec 2 1986

Fingerprint

Crystal growth from melt
Crucibles
Fourier analysis
crucibles
Spectrum analysis
Temperature
Transfer functions
temperature
oscillations
Crystals
Monitoring
pulling
spectral sensitivity
transfer functions
spectrum analysis
sensitivity
predictions
crystals

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Fluctuations of melt temperature and growth rate during Bi4Ge3O12 growth. / Juhász, Zoltán; Szabó, G.

In: Journal of Crystal Growth, Vol. 79, No. 1-3, 02.12.1986, p. 303-307.

Research output: Contribution to journalArticle

@article{12fed9f384e14b11a826b60eaee443b1,
title = "Fluctuations of melt temperature and growth rate during Bi4Ge3O12 growth",
abstract = "An experimental method is described to determine the transfer function and the spectral sensitivity relating the growth rate, i.e. the crucible weight, to the melt temperature during Czochralski growth. When investigating the transient behaviour of the growth rate, a significant difference was found between the growth processes at pulling rates of 2 mm/h and 0. The results of the spectral analysis are in good agreement with theoretical predictions suggesting decreasing sensitivity of the weight signal at increasing frequency of the temperature oscillation. The results prove that Fourier analysis of the crucible (or crystal) weight is a sensitive method for monitoring oscillations of the growth rate during Czochralski growth.",
author = "Zolt{\'a}n Juh{\'a}sz and G. Szab{\'o}",
year = "1986",
month = "12",
day = "2",
doi = "10.1016/0022-0248(86)90453-7",
language = "English",
volume = "79",
pages = "303--307",
journal = "Journal of Crystal Growth",
issn = "0022-0248",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Fluctuations of melt temperature and growth rate during Bi4Ge3O12 growth

AU - Juhász, Zoltán

AU - Szabó, G.

PY - 1986/12/2

Y1 - 1986/12/2

N2 - An experimental method is described to determine the transfer function and the spectral sensitivity relating the growth rate, i.e. the crucible weight, to the melt temperature during Czochralski growth. When investigating the transient behaviour of the growth rate, a significant difference was found between the growth processes at pulling rates of 2 mm/h and 0. The results of the spectral analysis are in good agreement with theoretical predictions suggesting decreasing sensitivity of the weight signal at increasing frequency of the temperature oscillation. The results prove that Fourier analysis of the crucible (or crystal) weight is a sensitive method for monitoring oscillations of the growth rate during Czochralski growth.

AB - An experimental method is described to determine the transfer function and the spectral sensitivity relating the growth rate, i.e. the crucible weight, to the melt temperature during Czochralski growth. When investigating the transient behaviour of the growth rate, a significant difference was found between the growth processes at pulling rates of 2 mm/h and 0. The results of the spectral analysis are in good agreement with theoretical predictions suggesting decreasing sensitivity of the weight signal at increasing frequency of the temperature oscillation. The results prove that Fourier analysis of the crucible (or crystal) weight is a sensitive method for monitoring oscillations of the growth rate during Czochralski growth.

UR - http://www.scopus.com/inward/record.url?scp=8844284983&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=8844284983&partnerID=8YFLogxK

U2 - 10.1016/0022-0248(86)90453-7

DO - 10.1016/0022-0248(86)90453-7

M3 - Article

AN - SCOPUS:8844284983

VL - 79

SP - 303

EP - 307

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

SN - 0022-0248

IS - 1-3

ER -