Microstructural stability in LPE Ga{sub x}In{sub (1{minus}x)}As{sub y}Sb{sub (1{minus}y)}/GaSb heterostructures

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The morphological and structural characteristics associated with the growth of lattice matched In{sub x}Ga{sub (1{minus}x)}As{sub y}Sb{sub (1{minus}y)}/GaSb (100) heterostructures is presented. The experiments focused on studying the effect of growth on vicinal surfaces tilted from the exact (100) orientation as well as variations in epilayer chemistry. It was found that variations in these process parameters had very strong effects on both the nucleation characteristics of the epilayer and the atomistic scale homogeneity of the alloy. The <100> and <110> variants in compositional modulation/phase separation were detected, as well as the evolution of weak (110) ordering. These results are discussed in ... continued below

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15 p.

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Chen, C.Y.; Bucklen, V.; Rajan, K.; Freeman, M. & Cardines, R.P. June 1, 1998.

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  • Knolls Atomic Power Laboratory
    Publisher Info: Knolls Atomic Power Lab., Schenectady, NY (United States)
    Place of Publication: Schenectady, New York

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Description

The morphological and structural characteristics associated with the growth of lattice matched In{sub x}Ga{sub (1{minus}x)}As{sub y}Sb{sub (1{minus}y)}/GaSb (100) heterostructures is presented. The experiments focused on studying the effect of growth on vicinal surfaces tilted from the exact (100) orientation as well as variations in epilayer chemistry. It was found that variations in these process parameters had very strong effects on both the nucleation characteristics of the epilayer and the atomistic scale homogeneity of the alloy. The <100> and <110> variants in compositional modulation/phase separation were detected, as well as the evolution of weak (110) ordering. These results are discussed in the context of other studies on phase stability in III-V epitaxial structures, especially in terms of surface reconstruction and kinetic effects near conditions of spinodal decomposition.

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15 p.

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OSTI as DE99001576

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  • 40. electronic materials conference, Charlottesville, VA (United States), 24 Jun 1998

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  • Other: DE99001576
  • Report No.: KAPL-P--000097
  • Report No.: K--98106;CONF-9806176--
  • Grant Number: AC12-76SN00052
  • Office of Scientific & Technical Information Report Number: 307977
  • Archival Resource Key: ark:/67531/metadc682402

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  • June 1, 1998

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  • July 25, 2015, 2:20 a.m.

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  • May 18, 2016, 2:44 p.m.

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Chen, C.Y.; Bucklen, V.; Rajan, K.; Freeman, M. & Cardines, R.P. Microstructural stability in LPE Ga{sub x}In{sub (1{minus}x)}As{sub y}Sb{sub (1{minus}y)}/GaSb heterostructures, article, June 1, 1998; Schenectady, New York. (digital.library.unt.edu/ark:/67531/metadc682402/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.