Positron-annihilation momentum profiles in aluminum

Core contribution and the independent-particle model

K. G. Lynn, J. R. MacDonald, R. A. Boie, Leonard C Feldman, J. D. Gabbe, M. F. Robbins, E. Bonderup, J. Golovchenko

Research output: Contribution to journalArticle

219 Citations (Scopus)

Abstract

The momentum profiles from positron annihilation with core electrons in Al have been observed with a recently developed two-detector Doppler-broadening technique. Independent-particle-model (IPM) calculations are in good agreement with the experimental results beyond twice the Fermi momentum and suggest the absence of strong positron-electron correlation effects in this region. Comparisons of calculations with properly normalized momentum profiles indicate that high-momentum core contributions may provide information on the nature of vacancy-type defects and self-trapping effects.

Original languageEnglish
Pages (from-to)241-244
Number of pages4
JournalPhysical Review Letters
Volume38
Issue number5
DOIs
Publication statusPublished - 1977

Fingerprint

positron annihilation
aluminum
momentum
profiles
positrons
electrons
trapping
detectors
defects

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Positron-annihilation momentum profiles in aluminum : Core contribution and the independent-particle model. / Lynn, K. G.; MacDonald, J. R.; Boie, R. A.; Feldman, Leonard C; Gabbe, J. D.; Robbins, M. F.; Bonderup, E.; Golovchenko, J.

In: Physical Review Letters, Vol. 38, No. 5, 1977, p. 241-244.

Research output: Contribution to journalArticle

Lynn, KG, MacDonald, JR, Boie, RA, Feldman, LC, Gabbe, JD, Robbins, MF, Bonderup, E & Golovchenko, J 1977, 'Positron-annihilation momentum profiles in aluminum: Core contribution and the independent-particle model', Physical Review Letters, vol. 38, no. 5, pp. 241-244. https://doi.org/10.1103/PhysRevLett.38.241
Lynn, K. G. ; MacDonald, J. R. ; Boie, R. A. ; Feldman, Leonard C ; Gabbe, J. D. ; Robbins, M. F. ; Bonderup, E. ; Golovchenko, J. / Positron-annihilation momentum profiles in aluminum : Core contribution and the independent-particle model. In: Physical Review Letters. 1977 ; Vol. 38, No. 5. pp. 241-244.
@article{f520472ef63d4744b712ce5518f683d2,
title = "Positron-annihilation momentum profiles in aluminum: Core contribution and the independent-particle model",
abstract = "The momentum profiles from positron annihilation with core electrons in Al have been observed with a recently developed two-detector Doppler-broadening technique. Independent-particle-model (IPM) calculations are in good agreement with the experimental results beyond twice the Fermi momentum and suggest the absence of strong positron-electron correlation effects in this region. Comparisons of calculations with properly normalized momentum profiles indicate that high-momentum core contributions may provide information on the nature of vacancy-type defects and self-trapping effects.",
author = "Lynn, {K. G.} and MacDonald, {J. R.} and Boie, {R. A.} and Feldman, {Leonard C} and Gabbe, {J. D.} and Robbins, {M. F.} and E. Bonderup and J. Golovchenko",
year = "1977",
doi = "10.1103/PhysRevLett.38.241",
language = "English",
volume = "38",
pages = "241--244",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "5",

}

TY - JOUR

T1 - Positron-annihilation momentum profiles in aluminum

T2 - Core contribution and the independent-particle model

AU - Lynn, K. G.

AU - MacDonald, J. R.

AU - Boie, R. A.

AU - Feldman, Leonard C

AU - Gabbe, J. D.

AU - Robbins, M. F.

AU - Bonderup, E.

AU - Golovchenko, J.

PY - 1977

Y1 - 1977

N2 - The momentum profiles from positron annihilation with core electrons in Al have been observed with a recently developed two-detector Doppler-broadening technique. Independent-particle-model (IPM) calculations are in good agreement with the experimental results beyond twice the Fermi momentum and suggest the absence of strong positron-electron correlation effects in this region. Comparisons of calculations with properly normalized momentum profiles indicate that high-momentum core contributions may provide information on the nature of vacancy-type defects and self-trapping effects.

AB - The momentum profiles from positron annihilation with core electrons in Al have been observed with a recently developed two-detector Doppler-broadening technique. Independent-particle-model (IPM) calculations are in good agreement with the experimental results beyond twice the Fermi momentum and suggest the absence of strong positron-electron correlation effects in this region. Comparisons of calculations with properly normalized momentum profiles indicate that high-momentum core contributions may provide information on the nature of vacancy-type defects and self-trapping effects.

UR - http://www.scopus.com/inward/record.url?scp=0000367589&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000367589&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.38.241

DO - 10.1103/PhysRevLett.38.241

M3 - Article

VL - 38

SP - 241

EP - 244

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 5

ER -