Fermi surface evolution and luttinger theorem in NaxCoO2:: A systematic photoemission study -: art. no. 146401

被引：140

作者：

Yang, HB ^{[1
]}

Pan, ZH

Sekharan, AKP

Sato, T

Souma, S

Takahashi, T

Jin, R

Sales, BC

Mandrus, D

Fedorov, AV

Wang, Z

Ding, H

机构：

[1] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA

[2] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[3] Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA

[4] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 14期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.95.146401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a systematic angle-resolved photoemission study on NaxCoO2 for a wide range of Na concentrations (0.3 <= x <= 0.72). In all the metallic samples at different x, we observed (i) only a single holelike Fermi surface centered around Gamma and (ii) its area changes with x according to the Luttinger theorem. We also observed a surface state that exhibits a larger Fermi surface area. The e(g)(') band and the associated small Fermi surface pockets near the K points predicted by band calculations are found to sink below the Fermi energy in a manner almost independent of the doping and temperature.

引用

收藏

页数：4

相关论文

共 21 条

[1] Evidence for an energy scale for quasiparticle dispersion in Bi2Sr2CaCu2O8 [J].

Bogdanov, PV ;

Lanzara, A ;

Kellar, SA ;

Zhou, XJ ;

Lu, ED ;

Zheng, WJ ;

Gu, G ;

Shimoyama, JI ;

Kishio, K ;

Ikeda, H ;

Yoshizaki, R ;

Hussain, Z ;

Shen, ZX .

PHYSICAL REVIEW LETTERS, 2000, 85 (12) :2581-2584

[2] Fermi surface, surface states, and surface reconstruction in Sr2RuO4 [J].

Damascelli, A ;

Lu, DH ;

Shen, KM ;

Armitage, NP ;

Ronning, F ;

Feng, DL ;

Kim, C ;

Shen, ZX ;

Kimura, T ;

Tokura, Y ;

Mao, ZQ ;

Maeno, Y .

PHYSICAL REVIEW LETTERS, 2000, 85 (24) :5194-5197

[3] Charge ordering, commensurability, and metallicity in the phase diagram of the layered NaxCoO2 -: art. no. 247001 [J].

Foo, ML ;

Wang, YY ;

Watauchi, S ;

Zandbergen, HW ;

He, T ;

Cava, RJ ;

Ong, NP .

PHYSICAL REVIEW LETTERS, 2004, 92 (24) :247001-1

[4] Fermi surface and quasiparticle dynamics of Na0.7CoO2 investigated by angle-resolved photoemission spectroscopy -: art. no. 246402 [J].

Hasan, MZ ;

Chuang, YD ;

Qian, D ;

Li, YW ;

Kong, Y ;

Kuprin, A ;

Fedorov, AV ;

Kimmerling, R ;

Rotenberg, E ;

Rossnagel, K ;

Hussain, Z ;

Koh, H ;

Rogado, NS ;

Foo, ML ;

Cava, RJ .

PHYSICAL REVIEW LETTERS, 2004, 92 (24) :246402-1

[5] Structural transition in NaxCoO2 with x near 0.75 due to Na rearrangement -: art. no. 134115 [J].

Huang, Q ;

Khaykovich, B ;

Chou, FC ;

Cho, JH ;

Lynn, JW ;

Lee, YS .

PHYSICAL REVIEW B, 2004, 70 (13) :134115-1

[6] Nesting, spin fluctuations, and odd-gap superconductivity in NaxCoO2•yH2O -: art. no. 097005 [J].

Johannes, MD ;

Mazin, II ;

Singh, DJ ;

Papaconstantopoulos, DA .

PHYSICAL REVIEW LETTERS, 2004, 93 (09) :097005-1

[7] Renormalization of spectral line shape and dispersion below Tc in Bi2Sr2CaCu2O8+δ [J].

Kaminski, A ;

Randeria, M ;

Campuzano, JC ;

Norman, MR ;

Fretwell, H ;

Mesot, J ;

Sato, T ;

Takahashi, T ;

Kadowaki, K .

PHYSICAL REVIEW LETTERS, 2001, 86 (06) :1070-1073

[8] Evidence for ubiquitous strong electron-phonon coupling in high-temperature superconductors [J].

Lanzara, A ;

Bogdanov, PV ;

Zhou, XJ ;

Kellar, SA ;

Feng, DL ;

Lu, ED ;

Yoshida, T ;

Eisaki, H ;

Fujimori, A ;

Kishio, K ;

Shimoyama, JI ;

Noda, T ;

Uchida, S ;

Hussain, Z ;

Shen, ZX .

NATURE, 2001, 412 (6846) :510-514

[9] Charge disproportionation and spin ordering tendencies in NaxCoO2 -: art. no. 045104 [J].

Lee, KW ;

Kunes, J ;

Pickett, WE .

PHYSICAL REVIEW B, 2004, 70 (04) :045104-1

[10] Metamagnetic transition in Na0.85CoO2 single crystals -: art. no. 187203 [J].

Luo, JL ;

Wang, NL ;

Liu, GT ;

Wu, D ;

Jing, XN ;

Hu, F ;

Xiang, T .

PHYSICAL REVIEW LETTERS, 2004, 93 (18) :187203-1