Dynamical excitonic effects in metals and semiconductors

被引：99

作者：

Marini, A ^{[1
]}

Del Sole, R

机构：

[1] Univ Basque Country, Dept Fis Mat, E-20018 San Sebastian, Spain

[2] Donostia Int Phys Ctr, E-20018 San Sebastian, Spain

[3] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

[4] Univ Roma Tor Vergata, Ist Nazl Fis Mat, I-00133 Rome, Italy

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.91.176402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamics of an electron-hole pair induced by the time-dependent screened Coulomb interaction is discussed. In contrast to the case where the static electron-hole interaction is considered we demonstrate the occurrence of important dynamical excitonic effects in the solution of the Bethe-Salpeter equation. This is illustrated in the calculated absorption spectra of noble metals (copper and silver) and silicon. Dynamical corrections strongly affect the spectra, partially canceling dynamical self-energy effects and leading to good agreement with experiment.

引用

页数：4

共 21 条

[1] Ab initio calculation of excitonic effects in the optical spectra of semiconductors [J].

Albrecht, S ;

Reining, L ;

Del Sole, R ;

Onida, G .

PHYSICAL REVIEW LETTERS, 1998, 80 (20) :4510-4513

[2] The GW method [J].

Aryasetiawan, F ;

Gunnarsson, O .

REPORTS ON PROGRESS IN PHYSICS, 1998, 61 (03) :237-312

[3] Compensation of dynamical quasiparticle and vertex corrections in optical spectra [J].

Bechstedt, F ;

Tenelsen, K ;

Adolph, B ;

DelSole, R .

PHYSICAL REVIEW LETTERS, 1997, 78 (08) :1528-1531

[4] Optical absorption of insulators and the electron-hole interaction: An ab initio calculation [J].

Benedict, LX ;

Shirley, EL ;

Bohn, RB .

PHYSICAL REVIEW LETTERS, 1998, 80 (20) :4514-4517

[5] Plasmonic excitations in noble metals: The case of Ag [J].

Cazalilla, MA ;

Dolado, JS ;

Rubio, A ;

Echenique, PM .

PHYSICAL REVIEW B, 2000, 61 (12) :8033-8042

[6] Optical properties of solids within the independent-quasiparticle approximation: Dynamical effects [J].

DelSole, R ;

Girlanda, R .

PHYSICAL REVIEW B, 1996, 54 (20) :14376-14380

[7]

Edwards D.F., 1985, Handbook of optical constants of solids

[8] TEMPERATURE-DEPENDENCE OF THE DIELECTRIC FUNCTION AND INTERBAND CRITICAL-POINTS IN SILICON [J].

LAUTENSCHLAGER, P ;

GARRIGA, M ;

VINA, L ;

CARDONA, M .

PHYSICAL REVIEW B, 1987, 36 (09) :4821-4830

[9]

Marini A, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.115101

[10] Quasiparticle electronic structure of copper in the GW approximation -: art. no 016403 [J].

Marini, A ;

Onida, G ;

Del Sole, R .

PHYSICAL REVIEW LETTERS, 2002, 88 (01) :164031-164034

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