Fermi-surface and electron correlation in Al studied by Compton scattering

P. Suortti; T. Buslaps; V. Honkimäki; C. Metz; A. Shukla; Th Tschentscher; J. Kwiatkowska; F. Maniawski; A. Bansil; S. Kaprzyk; A. S. Kheifets; D. R. Lun; T. Sattler; J. R. Schneider; F. Bell

doi:10.1016/S0022-3697(99)00324-8

Fermi-surface and electron correlation in Al studied by Compton scattering

P. Suortti^*, T. Buslaps, V. Honkimäki, C. Metz, A. Shukla, Th Tschentscher, J. Kwiatkowska, F. Maniawski, A. Bansil, S. Kaprzyk, A. S. Kheifets, D. R. Lun, T. Sattler, J. R. Schneider, F. Bell

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

20 Citations (Scopus)

Abstract

We have studied the electron-momentum density distribution in Al using the coincidence as well as the conventional high-resolution Compton scattering technique. In order to interpret the results, corresponding band theory based computations of the electron momentum density (EMD) and the Compton profiles (CPs) have been carried out. Our focus here is on determining the size of the break Z_F in the EMD at the Fermi momentum. For this purpose, differences between measurements and theoretical predictions are analyzed in terms of a simple model for describing electron correlation effects which are missing from the independent particle band theory framework; the model involves Z_F as the only adjustable parameter. A good fit with the coincidence measurements is obtained for Z_F of about 0.7, while the CP data yields Z_F = 0.7 to 0.8. This study suggests that, in sharp contrast to the case of Li where recent high-resolution Compton work indicates Z_F≈0, the standard picture of the interacting electron gas is substantially correct in Al.

Original language	English
Pages (from-to)	397-401
Number of pages	5
Journal	Journal of Physics and Chemistry of Solids
Volume	61
Issue number	3
DOIs	https://doi.org/10.1016/S0022-3697(99)00324-8
Publication status	Published - Mar 2000
Event	International Workshop on Inelastic X-ray Scattering - Long Island, NY, USA Duration: 18 Oct 1998 → 21 Oct 1998

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Suortti, P., Buslaps, T., Honkimäki, V., Metz, C., Shukla, A., Tschentscher, T., Kwiatkowska, J., Maniawski, F., Bansil, A., Kaprzyk, S., Kheifets, A. S., Lun, D. R., Sattler, T., Schneider, J. R., & Bell, F. (2000). Fermi-surface and electron correlation in Al studied by Compton scattering. Journal of Physics and Chemistry of Solids, 61(3), 397-401. https://doi.org/10.1016/S0022-3697(99)00324-8

@article{2d8c96c679c341bda52e8790631a20f9,

title = "Fermi-surface and electron correlation in Al studied by Compton scattering",

abstract = "We have studied the electron-momentum density distribution in Al using the coincidence as well as the conventional high-resolution Compton scattering technique. In order to interpret the results, corresponding band theory based computations of the electron momentum density (EMD) and the Compton profiles (CPs) have been carried out. Our focus here is on determining the size of the break ZF in the EMD at the Fermi momentum. For this purpose, differences between measurements and theoretical predictions are analyzed in terms of a simple model for describing electron correlation effects which are missing from the independent particle band theory framework; the model involves ZF as the only adjustable parameter. A good fit with the coincidence measurements is obtained for ZF of about 0.7, while the CP data yields ZF = 0.7 to 0.8. This study suggests that, in sharp contrast to the case of Li where recent high-resolution Compton work indicates ZF≈0, the standard picture of the interacting electron gas is substantially correct in Al.",

author = "P. Suortti and T. Buslaps and V. Honkim{\"a}ki and C. Metz and A. Shukla and Th Tschentscher and J. Kwiatkowska and F. Maniawski and A. Bansil and S. Kaprzyk and Kheifets, {A. S.} and Lun, {D. R.} and T. Sattler and Schneider, {J. R.} and F. Bell",

year = "2000",

month = mar,

doi = "10.1016/S0022-3697(99)00324-8",

language = "English",

volume = "61",

pages = "397--401",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Ltd.",

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note = "International Workshop on Inelastic X-ray Scattering ; Conference date: 18-10-1998 Through 21-10-1998",

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Suortti, P, Buslaps, T, Honkimäki, V, Metz, C, Shukla, A, Tschentscher, T, Kwiatkowska, J, Maniawski, F, Bansil, A, Kaprzyk, S, Kheifets, AS, Lun, DR, Sattler, T, Schneider, JR & Bell, F 2000, 'Fermi-surface and electron correlation in Al studied by Compton scattering', Journal of Physics and Chemistry of Solids, vol. 61, no. 3, pp. 397-401. https://doi.org/10.1016/S0022-3697(99)00324-8

TY - JOUR

T1 - Fermi-surface and electron correlation in Al studied by Compton scattering

AU - Suortti, P.

AU - Buslaps, T.

AU - Honkimäki, V.

AU - Metz, C.

AU - Shukla, A.

AU - Tschentscher, Th

AU - Kwiatkowska, J.

AU - Maniawski, F.

AU - Bansil, A.

AU - Kaprzyk, S.

AU - Kheifets, A. S.

AU - Lun, D. R.

AU - Sattler, T.

AU - Schneider, J. R.

AU - Bell, F.

PY - 2000/3

Y1 - 2000/3

N2 - We have studied the electron-momentum density distribution in Al using the coincidence as well as the conventional high-resolution Compton scattering technique. In order to interpret the results, corresponding band theory based computations of the electron momentum density (EMD) and the Compton profiles (CPs) have been carried out. Our focus here is on determining the size of the break ZF in the EMD at the Fermi momentum. For this purpose, differences between measurements and theoretical predictions are analyzed in terms of a simple model for describing electron correlation effects which are missing from the independent particle band theory framework; the model involves ZF as the only adjustable parameter. A good fit with the coincidence measurements is obtained for ZF of about 0.7, while the CP data yields ZF = 0.7 to 0.8. This study suggests that, in sharp contrast to the case of Li where recent high-resolution Compton work indicates ZF≈0, the standard picture of the interacting electron gas is substantially correct in Al.

AB - We have studied the electron-momentum density distribution in Al using the coincidence as well as the conventional high-resolution Compton scattering technique. In order to interpret the results, corresponding band theory based computations of the electron momentum density (EMD) and the Compton profiles (CPs) have been carried out. Our focus here is on determining the size of the break ZF in the EMD at the Fermi momentum. For this purpose, differences between measurements and theoretical predictions are analyzed in terms of a simple model for describing electron correlation effects which are missing from the independent particle band theory framework; the model involves ZF as the only adjustable parameter. A good fit with the coincidence measurements is obtained for ZF of about 0.7, while the CP data yields ZF = 0.7 to 0.8. This study suggests that, in sharp contrast to the case of Li where recent high-resolution Compton work indicates ZF≈0, the standard picture of the interacting electron gas is substantially correct in Al.

UR - http://www.scopus.com/inward/record.url?scp=0033874778&partnerID=8YFLogxK

U2 - 10.1016/S0022-3697(99)00324-8

DO - 10.1016/S0022-3697(99)00324-8

M3 - Conference article

SN - 0022-3697

VL - 61

SP - 397

EP - 401

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 3

T2 - International Workshop on Inelastic X-ray Scattering

Y2 - 18 October 1998 through 21 October 1998

ER -

Fermi-surface and electron correlation in Al studied by Compton scattering

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