Metallic behavior of lightly doped La2-xSrxCuO4 with a Fermi surface forming an arc -: art. no. 027001

被引：265

作者：

Yoshida, T ^{[1
]}

Zhou, XJ

Sasagawa, T

Yang, WL

Bogdanov, PV

Lanzara, A

Hussain, Z

Mizokawa, T

Fujimori, A

Eisaki, H

Shen, ZX

Kakeshita, T

Uchida, S

机构：

[1] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[2] Univ Tokyo, Dept Complex Sci & Engn, Bunkyo Ku, Tokyo 1130033, Japan

[3] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[4] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA

[5] Univ Tokyo, Dept Adv Mat Sci, Bunkyo Ku, Tokyo 1138656, Japan

[6] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.91.027001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Lightly doped La2-xSrxCuO4 in the so-called "insulating" spin-glass phase has been studied by angle-resolved photoemission spectroscopy. We have observed that a "quasiparticle" (QP) peak crosses the Fermi level in the node direction of the d-wave superconducting gap, forming an "arc" of Fermi surface, which explains the metallic behavior at high temperatures of the lightly doped materials. The QP spectral weight of the arc smoothly increases with hole doping, which we attribute to the nsimilar tox behavior of the carrier number in the underdoped and lightly doped regions.

引用

页数：4

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