Optical absorption in single-crystal metastable (GaAs)1-x(Ge2)x alloys: Evidence for a Zinc-blende-diamond order-disorder transition

Kathie E. Newman; A. Lastras-Martinez; Barnett Kramer; S. A. Barnett; M. A. Ray; John D. Dow; J. E. Greene; P. M. Raccah

doi:10.1103/PhysRevLett.50.1466

Optical absorption in single-crystal metastable (GaAs)1-x(Ge2)x alloys: Evidence for a Zinc-blende-diamond order-disorder transition

Kathie E. Newman^*, A. Lastras-Martinez, Barnett Kramer, S. A. Barnett, M. A. Ray, John D. Dow, J. E. Greene, P. M. Raccah

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

85 Scopus citations

Abstract

Single-crystal metastable (GaAs)1-x(Ge2)x alloys with 0<x<1 have been grown on (100) GaAs substrates by use of ultrahigh-vacuum ion-beam sputter deposition. Optical-absorption measurements showed that the direct gap E0 exhibited a large negative V-shaped bowing as a function of x with a minimum E0 0.5 eV near x=0.3. A zinc-blende to diamond-lattice order-disorder transition model is proposed as a possible explanation for these results.

Original language	English (US)
Pages (from-to)	1466-1469
Number of pages	4
Journal	Physical review letters
Volume	50
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.50.1466
State	Published - 1983

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1103/PhysRevLett.50.1466

Cite this

@article{a316f2d4c36748b8be63e60d0f905b14,

title = "Optical absorption in single-crystal metastable (GaAs)1-x(Ge2)x alloys: Evidence for a Zinc-blende-diamond order-disorder transition",

abstract = "Single-crystal metastable (GaAs)1-x(Ge2)x alloys with 0",

author = "Newman, {Kathie E.} and A. Lastras-Martinez and Barnett Kramer and Barnett, {S. A.} and Ray, {M. A.} and Dow, {John D.} and Greene, {J. E.} and Raccah, {P. M.}",

year = "1983",

doi = "10.1103/PhysRevLett.50.1466",

language = "English (US)",

volume = "50",

pages = "1466--1469",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "19",

}

TY - JOUR

T1 - Optical absorption in single-crystal metastable (GaAs)1-x(Ge2)x alloys

T2 - Evidence for a Zinc-blende-diamond order-disorder transition

AU - Newman, Kathie E.

AU - Lastras-Martinez, A.

AU - Kramer, Barnett

AU - Barnett, S. A.

AU - Ray, M. A.

AU - Dow, John D.

AU - Greene, J. E.

AU - Raccah, P. M.

PY - 1983

Y1 - 1983

N2 - Single-crystal metastable (GaAs)1-x(Ge2)x alloys with 0

AB - Single-crystal metastable (GaAs)1-x(Ge2)x alloys with 0

UR - http://www.scopus.com/inward/record.url?scp=4043089666&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4043089666&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.50.1466

DO - 10.1103/PhysRevLett.50.1466

M3 - Article

AN - SCOPUS:4043089666

SN - 0031-9007

VL - 50

SP - 1466

EP - 1469

JO - Physical review letters

JF - Physical review letters

IS - 19

ER -

Optical absorption in single-crystal metastable (GaAs)1-x(Ge2)x alloys: Evidence for a Zinc-blende-diamond order-disorder transition

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this