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

doi:10.1103/PhysRevLett.38.241

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

Rutgers University

Research output: Contribution to journal › Article

221 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 language	English
Pages (from-to)	241-244
Number of pages	4
Journal	Physical Review Letters
Volume	38
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.38.241
Publication status	Published - 1977

Fingerprint

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Lynn, K. G., MacDonald, J. R., Boie, R. A., Feldman, L. C., Gabbe, J. D., Robbins, M. F., Bonderup, E., & Golovchenko, J. (1977). Positron-annihilation momentum profiles in aluminum: Core contribution and the independent-particle model. Physical Review Letters, 38(5), 241-244. https://doi.org/10.1103/PhysRevLett.38.241

@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

AN - SCOPUS:0000367589

VL - 38

SP - 241

EP - 244

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 5

ER -

Access to Document

10.1103/PhysRevLett.38.241