METALLIC AND INSULATING STATES IN 2-DIMENSIONAL C-60 POLYMERS

被引：15

作者：

HARIGAYA, K

机构：

[1] Fundamental Physics Section, Electrotechnical Laboratory, Tsukuba, Ibaraki, 305

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 242卷 / 06期

关键词：

D O I：

10.1016/0009-2614(95)00784-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Variations in the band structures of the two-dimensional C-60 polymers are studied, when the pi-conjugation conditions are changed. We investigate the rectangular and triangular polymers, in order to discuss metal-insulator transitions, using a semi-empirical model with Su-Schrieffer-Heeger-type electron-phonon interactions. We find that the electronic structures change among direct-gap insulators and the metal, depending on the degree of pi conjugations in the rectangular polymer. The triangular polymer changes from the indirect gap insulator to the metal as the pi conjugations increase. High pressure experiments could observe such pressure-induced metal-insulator transitions.

引用

页码：585 / 591

页数：7

共 14 条

[1] QUASI-ONE-DIMENSIONAL ELECTRONIC-STRUCTURE IN ORTHORHOMBIC RBC60
CHAUVET, O
OSZLANYI, G
FORRO, L
STEPHENS, PW
TEGZE, M
FAIGEL, G
JANOSSY, A
[J]. PHYSICAL REVIEW LETTERS, 1994, 72 (17) : 2721 - 2724
[2] LATTICE DISTORTION AND ENERGY-LEVEL STRUCTURES IN DOPED C-60 AND C-70 MOLECULES STUDIED WITH THE EXTENDED SU-SCHRIEFFER-HEEGER MODEL - POLARON EXCITATIONS AND OPTICAL-ABSORPTION
HARIGAYA, K
[J]. PHYSICAL REVIEW B, 1992, 45 (23): : 13676 - 13684
[3] LATTICE AND ELECTRONIC-STRUCTURES OF UNDOPED AND DOPED C60 MOLECULES BY THE EXTENDED SU-SCHRIEFFER-HEEGER MODEL
HARIGAYA, K
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1991, 60 (12) : 4001 - 4004
[4] LATTICE DISTORTION AND ENERGY-LEVEL STRUCTURES IN DOPED C-70 BY THE EXTENDED SU-SCHRIEFFER-HEEGER MODEL
HARIGAYA, K
[J]. CHEMICAL PHYSICS LETTERS, 1992, 189 (01) : 79 - 83
[5] NONLINEAR OPTICAL SPECTROSCOPY ON ONE-DIMENSIONAL EXCITONS IN SILICON POLYMER, POLYSILANE
HASEGAWA, T
IWASA, Y
SUNAMURA, H
KODA, T
TOKURA, Y
TACHIBANA, H
MATSUMOTO, M
ABE, S
[J]. PHYSICAL REVIEW LETTERS, 1992, 69 (04) : 668 - 671
[6] NEW PHASES OF C-60 SYNTHESIZED AT HIGH-PRESSURE
IWASA, Y
ARIMA, T
FLEMING, RM
SIEGRIST, T
ZHOU, O
HADDON, RC
ROTHBERG, LJ
LYONS, KB
CARTER, HL
HEBARD, AF
TYCKO, R
DABBAGH, G
KRAJEWSKI, JJ
THOMAS, GA
YAGI, T
[J]. SCIENCE, 1994, 264 (5165) : 1570 - 1572
[7] MUNEZREGUEIRO M, 1995, PHYS REV LETT, V74, P278
[8] OSZLANYI G, 1995, SOLID STATE COMMUN, V93, P265, DOI 10.1016/0038-1098(94)00778-0
[9] ORTHORHOMBIC A(1)C60 - A CONDUCTING LINEAR ALKALI FULLERIDE POLYMER
PEKKER, S
FORRO, L
MIHALY, L
JANOSSY, A
[J]. SOLID STATE COMMUNICATIONS, 1994, 90 (06) : 349 - 352
[10] SINGLE-CRYSTALLINE (KC60)(N) - A CONDUCTING LINEAR ALKALI FULLERIDE POLYMER
PEKKER, S
JANOSSY, A
MIHALY, L
CHAUVET, O
CARRARD, M
FORRO, L
[J]. SCIENCE, 1994, 265 (5175) : 1077 - 1078

← 1 2 →