Observation of an unconventional metal-insulator transition in overdoped CuO2 compounds -: art. no. 107003

被引：61

作者：

Venturini, F ^{[1
]}

Opel, M

Devereaux, TP

Freericks, JK

Tütto, I

Revaz, B

Walker, E

Berger, H

Forró, L

Hackl, R

机构：

[1] Bavarian Acad Sci, Walther Meissner Inst, D-85748 Garching, Germany

[2] Univ Waterloo, Dept Phys, Waterloo, ON N2L 3G1, Canada

[3] Georgetown Univ, Dept Phys, Washington, DC 20057 USA

[4] Hungarian Acad Sci, RISPO, H-1525 Budapest, Hungary

[5] Univ Geneva, DPMC, CH-1211 Geneva, Switzerland

[6] EPFL Ecublens, CH-1025 Lausanne, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.89.107003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electron dynamics in the normal state of Bi2Sr2CaCu2O8+delta is studied by inelastic light scattering over a wide range of doping. A strong anisotropy of the electron relaxation is found which cannot be explained by single-particle properties alone. The results strongly indicate the presence of an unconventional quantum-critical metal-insulator transition where "hot" (antinodal) quasiparticles become insulating while "cold" (nodal) quasiparticles remain metallic. A phenomenology is developed which allows a quantitative understanding of the Raman results and provides a scenario which links single- and many-particle properties.

引用

页数：4

共 50 条

[31] Evidence for nonexistence of superconductivity in an isolated CuO2 bilayer -: art. no. 092507
Kim, MS
Choi, JH
Lee, SI
PHYSICAL REVIEW B, 2001, 63 (09):
[32] Valence changes associated with the metal-insulator transition in Bi1-xLaxNiO3 -: art. no. 155103
Wadati, H
Takizawa, M
Tran, TT
Tanaka, K
Mizokawa, T
Fujimori, A
Chikamatsu, A
Kumigashira, H
Oshima, M
Ishiwata, S
Azuma, M
Takano, M
PHYSICAL REVIEW B, 2005, 72 (15):
[33] Suppression of the metal-insulator transition in the spinel Cu1-xInxIr2S4 system -: art. no. 125128
Cao, GH
Xu, XF
Jiao, ZK
Kitazawa, H
Matsumoto, T
Feng, CM
PHYSICAL REVIEW B, 2005, 72 (12)
[34] Metal-insulator transition in TlSr2CoO5 from orbital degeneracy and spin disproportionation -: art. no. 075104
Foerster, D
Hayn, R
Pruschke, T
Zölfl, M
Rosner, H
PHYSICAL REVIEW B, 2001, 64 (07) : 751041 - 7510410
[35] Selective spin-state switch and metal-insulator transition in GdBaCo2O5.5 -: art. no. 180405
Frontera, C
García-Muñoz, JL
Llobet, A
Aranda, MAG
PHYSICAL REVIEW B, 2002, 65 (18) : 1 - 4
[36] Disproportionation, metal-insulator transition, and critical interaction strength in Na1/2CoO2 -: art. no. 026403
Lee, KW
Kunes, J
Novak, P
Pickett, WE
PHYSICAL REVIEW LETTERS, 2005, 94 (02)
[37] Field-induced metal-insulator transition in the c-axis resistivity of graphite -: art. no. 241101
Kempa, H
Esquinazi, P
Kopelevich, Y
PHYSICAL REVIEW B, 2002, 65 (24): : 1 - 4
[38] Comment on "Scaling of the conductivity with temperature and uniaxial stress in Si:B at the metal-insulator transition" -: art. no. 129701
Castner, TG
PHYSICAL REVIEW LETTERS, 2001, 87 (12) : 129701 - 129701
[39] Orientational charge density waves and the metal-insulator transition in polymerized KC60 -: art. no. 165117
Verberck, B
Nikolaev, AV
Michel, KH
PHYSICAL REVIEW B, 2005, 71 (16)
[40] Ferromagnetism and the metal-insulator transition in the thiospinel Cu(Ir1-xCrx)2S4 -: art. no. 115106
Endoh, R
Awaka, J
Nagata, S
PHYSICAL REVIEW B, 2003, 68 (11)

← 1 2 3 4 5 →