ELECTRON-AFFINITIES OF ALKALINE-EARTH-METAL ATOMS

被引：38

作者：

FUENTEALBA, P ^{[1
]}

SAVIN, A ^{[1
]}

STOLL, H ^{[1
]}

PREUSS, H ^{[1
]}

机构：

[1] UNIV STUTTGART, INST THEORET CHEM, STUTTGART 80, GERMANY

来源：

PHYSICAL REVIEW A | 1990年 / 41卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.41.1238

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The negative ions of the alkaline-earth-metal atoms (Be to Ba) have been studied by means of a pseudopotential model together with configuration- interaction and multiconfiguration self-consistent-field techniques. Only the heavier ions Sr- and Ba- have been predicted to be stable. For Ca atoms the situation is very complicated, and our calculations do not permit us to decide whether the negative ion is stable with respect to the neutral atom or not. The calculated electron affinities are very small and depend strongly on the correlation energy. It has been found that the core-valence correlation contribution to the electron affinities is important and reduces their values significantly. © 1990 The American Physical Society.

引用

页码：1238 / 1242

页数：5

共 21 条

[1] AUTO-IONIZING STATES IN ALKALI ATOMS WITH MICROSECOND LIFETIMES [J].

FELDMAN, P ;

NOVICK, R .

PHYSICAL REVIEW, 1967, 160 (01) :143-&

[2] BINDING-ENERGIES FOR P-ELECTRONS IN NEGATIVE ALKALINE-EARTH ELEMENTS [J].

FISCHER, CF .

PHYSICAL REVIEW A, 1989, 39 (03) :963-970

[3] GROUND-STATES OF CA- AND SC- FROM 2 THEORETICAL POINTS-OF-VIEW [J].

FISCHER, CF ;

LAGOWSKI, JB ;

VOSKO, SH .

PHYSICAL REVIEW LETTERS, 1987, 59 (20) :2263-2266

[4] ELECTRON-AFFINITIES OF ALKALINE-EARTH ATOMS BY MEANS OF DIFFERENT DENSITY FUNCTIONALS [J].

FUENTEALBA, P ;

SAVIN, A ;

STOLL, H ;

PREUSS, H .

PHYSICAL REVIEW A, 1989, 40 (04) :2163-2165

[5] PSEUDOPOTENTIAL CALCULATIONS FOR ALKALINE-EARTH ATOMS [J].

FUENTEALBA, P ;

VONSZENTPALY, L ;

PREUSS, H ;

STOLL, H .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1985, 18 (07) :1287-1296

[6] PSEUDOPOTENTIAL CALCULATIONS ON THE GROUND-STATE OF THE ALKALINE-EARTH MONOHYDRIDE IONS [J].

FUENTEALBA, P ;

REYES, O .

MOLECULAR PHYSICS, 1987, 62 (06) :1291-1296

[7] GROUND-STATE PROPERTIES OF ALKALI AND ALKALINE-EARTH HYDRIDES [J].

FUENTEALBA, P ;

REYES, O ;

STOLL, H ;

PREUSS, H .

JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (09) :5338-5345

[8] BINDING-ENERGIES IN ATOMIC NEGATIVE-IONS .2. [J].

HOTOP, H ;

LINEBERGER, WC .

JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1985, 14 (03) :731-750

[9] STABLE NEGATIVE-IONS OF THE HEAVY ALKALINE-EARTH ATOMS [J].

KIM, LH ;

GREENE, CH .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1989, 22 (08) :L175-L182

[10]

MOORE CE, 1958, NBS467 CIRC

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