Correlation-potential method for negative ions and electron scattering

V. A. Dzuba, G. F. Gribakin

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The relativistic correlation-potential method was used to calculate binding energies and fine-structure intervals for Pd, Ba, and Yb negative ions and to investigate low-energy electron scattering by Yb, Hg, and Ra atoms. The results for the binding energies are the following: 540 meV for the 5s state of Pd-, 190 and 133 meV for the 6p1/2 and 6p3/2 states of Ba-, and 36 meV for the 6p1/2 state of the Yb-. A number of prominent p and d resonances are revealed in the scattering phase-shift calculations. These p or d resonances lead to a phenomenon of 100% polarization of the scattered electron beam at appropriate electron energy and scattering angle. A criterion is proposed to measure the strength of the nonlocal correlation potential and to evaluate its ability to create a bound state: ∫G(r',r)Σ(r, r')dr dr'>1 is the necessary condition for the formation of a bound state. Here Σ is the correlation potential and G is the electron Green's function at zero energy.
Original languageEnglish
Pages (from-to)2483-2492
JournalPhysical Review A (Atomic, Molecular, and Optical Physics)
Volume49
DOIs
Publication statusPublished - 01 Apr 1994

Fingerprint

ion scattering
negative ions
electron scattering
binding energy
phase shift
Green's functions
fine structure
electron beams
electron energy
intervals
energy
polarization
scattering
atoms
electrons

Cite this

@article{30fd31d1bfef45aaa222c66b00f9f668,
title = "Correlation-potential method for negative ions and electron scattering",
abstract = "The relativistic correlation-potential method was used to calculate binding energies and fine-structure intervals for Pd, Ba, and Yb negative ions and to investigate low-energy electron scattering by Yb, Hg, and Ra atoms. The results for the binding energies are the following: 540 meV for the 5s state of Pd-, 190 and 133 meV for the 6p1/2 and 6p3/2 states of Ba-, and 36 meV for the 6p1/2 state of the Yb-. A number of prominent p and d resonances are revealed in the scattering phase-shift calculations. These p or d resonances lead to a phenomenon of 100{\%} polarization of the scattered electron beam at appropriate electron energy and scattering angle. A criterion is proposed to measure the strength of the nonlocal correlation potential and to evaluate its ability to create a bound state: ∫G(r',r)Σ(r, r')dr dr'>1 is the necessary condition for the formation of a bound state. Here Σ is the correlation potential and G is the electron Green's function at zero energy.",
author = "Dzuba, {V. A.} and Gribakin, {G. F.}",
year = "1994",
month = "4",
day = "1",
doi = "10.1103/PhysRevA.49.2483",
language = "English",
volume = "49",
pages = "2483--2492",
journal = "Physical Review A (Atomic, Molecular, and Optical Physics)",
issn = "1050-2947",
publisher = "American Physical Society",

}

Correlation-potential method for negative ions and electron scattering. / Dzuba, V. A.; Gribakin, G. F.

In: Physical Review A (Atomic, Molecular, and Optical Physics), Vol. 49, 01.04.1994, p. 2483-2492.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Correlation-potential method for negative ions and electron scattering

AU - Dzuba, V. A.

AU - Gribakin, G. F.

PY - 1994/4/1

Y1 - 1994/4/1

N2 - The relativistic correlation-potential method was used to calculate binding energies and fine-structure intervals for Pd, Ba, and Yb negative ions and to investigate low-energy electron scattering by Yb, Hg, and Ra atoms. The results for the binding energies are the following: 540 meV for the 5s state of Pd-, 190 and 133 meV for the 6p1/2 and 6p3/2 states of Ba-, and 36 meV for the 6p1/2 state of the Yb-. A number of prominent p and d resonances are revealed in the scattering phase-shift calculations. These p or d resonances lead to a phenomenon of 100% polarization of the scattered electron beam at appropriate electron energy and scattering angle. A criterion is proposed to measure the strength of the nonlocal correlation potential and to evaluate its ability to create a bound state: ∫G(r',r)Σ(r, r')dr dr'>1 is the necessary condition for the formation of a bound state. Here Σ is the correlation potential and G is the electron Green's function at zero energy.

AB - The relativistic correlation-potential method was used to calculate binding energies and fine-structure intervals for Pd, Ba, and Yb negative ions and to investigate low-energy electron scattering by Yb, Hg, and Ra atoms. The results for the binding energies are the following: 540 meV for the 5s state of Pd-, 190 and 133 meV for the 6p1/2 and 6p3/2 states of Ba-, and 36 meV for the 6p1/2 state of the Yb-. A number of prominent p and d resonances are revealed in the scattering phase-shift calculations. These p or d resonances lead to a phenomenon of 100% polarization of the scattered electron beam at appropriate electron energy and scattering angle. A criterion is proposed to measure the strength of the nonlocal correlation potential and to evaluate its ability to create a bound state: ∫G(r',r)Σ(r, r')dr dr'>1 is the necessary condition for the formation of a bound state. Here Σ is the correlation potential and G is the electron Green's function at zero energy.

U2 - 10.1103/PhysRevA.49.2483

DO - 10.1103/PhysRevA.49.2483

M3 - Article

VL - 49

SP - 2483

EP - 2492

JO - Physical Review A (Atomic, Molecular, and Optical Physics)

JF - Physical Review A (Atomic, Molecular, and Optical Physics)

SN - 1050-2947

ER -