EFFECTS OF ELECTRON CORRELATIONS ON ENERGY-BANDS OF SEMICONDUCTORS - A PROJECTION-TECHNIQUE TREATMENT

被引：4

作者：

BECKER, KW

BRENIG, W

FULDE, P

机构：

[1] Max-Planck-Institut für Festkörperforschung, Stuttgart 80, D-7000

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1990年 / 78卷 / 01期

关键词：

D O I：

10.1007/BF01317356

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A recently developed method based on projection techniques is applied to the computation of electron correlations in excited states of semiconductors. In particular it is shown that the method is able to reproduce the results previously obtained by applying the variational Local Ansatz. The advantages of the present approach are its conceptual simplicity and that it can be applied not only to weakly but also to strongly correlated electronic systems. © 1990 Springer-Verlag.

引用

收藏

页码：51 / 56

页数：6

相关论文

共 17 条

[1]

[Anonymous], ELECTRONIC STRUCTURE

[2] GROUND-STATE ENERGY OF STRONGLY CORRELATED ELECTRONIC SYSTEMS [J].

BECKER, KW ;

FULDE, P .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1988, 72 (04) :423-427

[3]

BECKER KW, IN PRESS J CHEM PHYS

[4] EXCHANGE AND CORRELATION-EFFECTS ON THE QUASI-PARTICLE BAND-STRUCTURE OF SEMICONDUCTORS [J].

BORRMANN, W ;

FULDE, P .

PHYSICAL REVIEW B, 1987, 35 (18) :9569-9579

[5] VARIATIONAL QUANTUM MONTE-CARLO NONLOCAL PSEUDOPOTENTIAL APPROACH TO SOLIDS - COHESIVE AND STRUCTURAL-PROPERTIES OF DIAMOND [J].

FAHY, S ;

WANG, XW ;

LOUIE, SG .

PHYSICAL REVIEW LETTERS, 1988, 61 (14) :1631-1634

[6] DENSITY-FUNCTIONAL THEORY IN INSULATORS - ANALYTICAL MODEL FOR SIGMA-XC, UPSILON-XC, AND THE GAP CORRECTION [J].

HANKE, W ;

SHAM, LJ .

PHYSICAL REVIEW B, 1988, 38 (18) :13361-13370

[7] ELECTRONIC EXCITATIONS IN SEMICONDUCTORS .2. APPLICATION OF THE THEORY TO DIAMOND [J].

HORSCH, S ;

HORSCH, P ;

FULDE, P .

PHYSICAL REVIEW B, 1984, 29 (04) :1870-1881

[8] 1ST-PRINCIPLES THEORY OF QUASIPARTICLES - CALCULATION OF BAND-GAPS IN SEMICONDUCTORS AND INSULATORS [J].

HYBERTSEN, MS ;

LOUIE, SG .

PHYSICAL REVIEW LETTERS, 1985, 55 (13) :1418-1421

[9] ELECTRON CORRELATION IN SEMICONDUCTORS AND INSULATORS - BAND-GAPS AND QUASI-PARTICLE ENERGIES [J].

HYBERTSEN, MS ;

LOUIE, SG .

PHYSICAL REVIEW B, 1986, 34 (08) :5390-5413

[10] GENERALIZED CUMULANT EXPANSION METHOD [J].

KUBO, R .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1962, 17 (07) :1100-&