THEORY FOR EXCITON EFFECTS ON LIGHT-ABSORPTION SPECTRA OF FCC TYPE C-60 CRYSTAL

被引：29

作者：

TSUBO, T

NASU, K

机构：

[1] Photon Factory, National Laboratory for High Energy Physics, The Graduate University for Advanced Studies, Ibaraki, 305, 1-1, Oho, Tukuba

来源：

SOLID STATE COMMUNICATIONS | 1994年 / 91卷 / 11期

关键词：

C-60; CRYSTAL; CHARGE TRANSFER EXCITON; EXCITON EFFECT; OPTICAL ABSORPTION;

D O I：

10.1016/0038-1098(94)90011-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Optical absorption spectra of a f.c.c, type C-60 crystal are theoretically studied by using an extended Hubbard model, so as to clarify exciton effects. The ground and excited states are calculated within the Hartree-Fock approximation reinforced by the first-order perturbation of electron-hole attractions. The spectral intensity around the region 2.5-2.8eV is shown to be enhanced greatly by the effect of inter-molecular charge-transfer exciton. These results are in good agreement with experiments.

引用

页码：907 / 911

页数：5

共 18 条

[1]

[Anonymous], ELECTRONIC STRUCTURE

[2] 1ST-PRINCIPLES CALCULATION OF OPTICAL-PROPERTIES OF C60 IN THE FCC LATTICE [J].

CHING, WY ;

HUANG, MZ ;

XU, YN ;

HARTER, WG ;

CHAN, FT .

PHYSICAL REVIEW LETTERS, 1991, 67 (15) :2045-2048

[3] CRYSTAL-STRUCTURE AND BONDING OF ORDERED C60 [J].

DAVID, WIF ;

IBBERSON, RM ;

MATTHEWMAN, JC ;

PRASSIDES, K ;

DENNIS, TJS ;

HARE, JP ;

KROTO, HW ;

TAYLOR, R ;

WALTON, DRM .

NATURE, 1991, 353 (6340) :147-149

[4]

DEDERICH F, 1992, ACCOUNTS CHEM RES, V25, P119

[5] ELECTRONIC-STRUCTURE AND BONDING IN ICOSAHEDRAL C-60 [J].

HADDON, RC ;

BRUS, LE ;

RAGHAVACHARI, K .

CHEMICAL PHYSICS LETTERS, 1986, 125 (5-6) :459-464

[6] SOLITONS IN CONDUCTING POLYMERS [J].

HEEGER, AJ ;

KIVELSON, S ;

SCHRIEFFER, JR ;

SU, WP .

REVIEWS OF MODERN PHYSICS, 1988, 60 (03) :781-850

[7] ORIENTATIONAL ORDERING TRANSITION IN SOLID C60 [J].

HEINEY, PA ;

FISCHER, JE ;

MCGHIE, AR ;

ROMANOW, WJ ;

DENENSTEIN, AM ;

MCCAULEY, JP ;

SMITH, AB ;

COX, DE .

PHYSICAL REVIEW LETTERS, 1991, 66 (22) :2911-2914

[8] OPTICAL-TRANSITIONS OF C-60 FILMS IN THE VISIBLE AND ULTRAVIOLET FROM SPECTROSCOPIC ELLIPSOMETRY [J].

KELLY, MK ;

ETCHEGOIN, P ;

FUCHS, D ;

KRATSCHMER, W ;

FOSTIROPOULOS, K .

PHYSICAL REVIEW B, 1992, 46 (08) :4963-4968

[9]

Kroto H.W., 1993, FULLERENES

[10] C-60 - BUCKMINSTERFULLERENE [J].

KROTO, HW ;

HEATH, JR ;

OBRIEN, SC ;

CURL, RF ;

SMALLEY, RE .

NATURE, 1985, 318 (6042) :162-163

← 1 2 →