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Energy Gap Vs. Alloy Composition and Temperature in Hg sub 1--x Cd sub x Te

An empirical expression for the energy band gap E sub g of Hg sub 1--x Cd sub x Te vs. the temp. and alloy composition, deduced from optical absorption data for thin samples with different composition x, is reported as E sub g = --0.295 + 1.87x--0.28x exp 2 + (6--14x + 3x exp 2 ) (10 exp --4 )T + 0.... Full description

Journal Title: Appl. Phys. Lett 1 Dec. 1983, Vol.43(11), pp.1064-1066
Main Author: Chu, J
Other Authors: Tang, D , Chu, J
Format: Electronic Article Electronic Article
Language: English
Subjects:
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ID: ISSN: 0003-6951
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title: Energy Gap Vs. Alloy Composition and Temperature in Hg sub 1--x Cd sub x Te
format: Article
creator:
  • Chu, J
  • Tang, D
  • Chu, J
subjects:
  • Mercury Compounds
  • Atomic Properties
  • Cadmium Compounds
  • Tellurides
  • Energy Gap
  • Composition Effects
  • Physics of Metals (MD)
ispartof: Appl. Phys. Lett, 1 Dec. 1983, Vol.43(11), pp.1064-1066
description: An empirical expression for the energy band gap E sub g of Hg sub 1--x Cd sub x Te vs. the temp. and alloy composition, deduced from optical absorption data for thin samples with different composition x, is reported as E sub g = --0.295 + 1.87x--0.28x exp 2 + (6--14x + 3x exp 2 ) (10 exp --4 )T + 0.35x exp 4 , which is applicable to the ranges of 0 < = x < = 0.37 (plus x = 1) and 4.2 < = T < = 300K. The values E sub g of this expression are uniformly higher than the expressions of Hansen, Schmit and Casselman. By comparing both expressions with the known magneto-optical experimental data at 4.2 and 24K, it is found that for this expression the standard error of estimate is 0.008 eV which is better than the expression of Hansen, et al . 25 ref.--AA
language: eng
source: © ProQuest LLC All rights reserved
identifier: ISSN: 0003-6951
fulltext: fulltext
issn:
  • 00036951
  • 0003-6951
url: Link


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titleEnergy Gap Vs. Alloy Composition and Temperature in Hg sub 1--x Cd sub x Te
creatorChu, J ; Tang, D ; Chu, J
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ispartofAppl. Phys. Lett, 1 Dec. 1983, Vol.43(11), pp.1064-1066
identifierISSN: 0003-6951
subjectMercury Compounds ; Atomic Properties ; Cadmium Compounds ; Tellurides ; Energy Gap ; Composition Effects ; Physics of Metals (MD)
descriptionAn empirical expression for the energy band gap E sub g of Hg sub 1--x Cd sub x Te vs. the temp. and alloy composition, deduced from optical absorption data for thin samples with different composition x, is reported as E sub g = --0.295 + 1.87x--0.28x exp 2 + (6--14x + 3x exp 2 ) (10 exp --4 )T + 0.35x exp 4 , which is applicable to the ranges of 0 < = x < = 0.37 (plus x = 1) and 4.2 < = T < = 300K. The values E sub g of this expression are uniformly higher than the expressions of Hansen, Schmit and Casselman. By comparing both expressions with the known magneto-optical experimental data at 4.2 and 24K, it is found that for this expression the standard error of estimate is 0.008 eV which is better than the expression of Hansen, et al . 25 ref.--AA
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titleEnergy Gap Vs. Alloy Composition and Temperature in Hg sub 1--x Cd sub x Te
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abstractAn empirical expression for the energy band gap E sub g of Hg sub 1--x Cd sub x Te vs. the temp. and alloy composition, deduced from optical absorption data for thin samples with different composition x, is reported as E sub g = --0.295 + 1.87x--0.28x exp 2 + (6--14x + 3x exp 2 ) (10 exp --4 )T + 0.35x exp 4 , which is applicable to the ranges of 0 < = x < = 0.37 (plus x = 1) and 4.2 < = T < = 300K. The values E sub g of this expression are uniformly higher than the expressions of Hansen, Schmit and Casselman. By comparing both expressions with the known magneto-optical experimental data at 4.2 and 24K, it is found that for this expression the standard error of estimate is 0.008 eV which is better than the expression of Hansen, et al . 25 ref.--AA
urlhttp://search.proquest.com/docview/23281523/
date1983-12-01