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Positron lifetimes in solids from first principles calculations [electronic resource].

Published:
Livermore, Calif : Lawrence Livermore National Laboratory, 1991.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
Pages: (10 pages) : digital, PDF file
Additional Creators:
Lawrence Livermore National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
We present a first principles method for calculating positron lifetimes in solids, based on self-consistent calculations using the Linear Muffin-Tin Orbital method. Local density approximations are used for both electron-electron and electron-positron interactions. Results are presented for a variety of elemental metals and vacancies to demonstrate the reliability of this approach. Theoretical calculations of positron lifetimes can be used to interpret experimental data. As an examples of this, we interpret our experimental lifetime data for the oxide superconductor Ba{sub 1-x}KₓBiO₃ using calculations based on this method. 12 refs., 3 figs.
Report Numbers:
E 1.99:ucrl-jc-106988
E 1.99: conf-9108150--2
conf-9108150--2
ucrl-jc-106988
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
08/07/1991.
"ucrl-jc-106988"
" conf-9108150--2"
"DE92000088"
": Y-1135"
9. international conference on positron annihilation, Szombathely (Hungary), 26-31 Aug 1991.
Howell, R.H.; O'Brien, J.C.; Sterne, P.A.; Kaiser, J.H. . Dept. of Physics.
RAWF
Welch (Robert A.) Foundation, Houston, TX (United States)
Funding Information:
W-7405-ENG-48
View MARC record | catkey: 14064711