Polaronic behavior of undoped high-Tc cuprate superconductors from angle-resolved photoemission spectra -: art. no. 227002

被引：100

作者：

Rösch, O ^{[1
]}

Gunnarsson, O

Zhou, XJ

Yoshida, T

Sasagawa, T

Fujimori, A

Hussain, Z

Shen, ZX

Uchida, S

机构：

[1] Max Planck Inst Festkorperforsch, D-70506 Stuttgart, Germany

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

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

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

[5] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[6] Univ Tokyo, Dept Complex Sci & Engn, Tokyo 1130033, Japan

[7] Univ Tokyo, Dept Adv Mat Sci, Tokyo, Japan

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.95.227002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present angle-resolved photoemission spectroscopy (ARPES) data on undoped La2CuO4, indicating polaronic coupling between bosons and charge carriers. Using a shell model, we calculate the electron-phonon coupling and find that it is strong enough to give self-trapped polarons. We develop an efficient method for calculating ARPES spectra in undoped systems. Using the calculated couplings, we find the width of the phonon sideband in good agreement with experiment. We analyze reasons for the observed dependence of the width on the binding energy.

引用

页数：4

共 12 条

[1] Determination of the local lattice distortions in the CuO2 plane of La1.85Sr0.15CuO4 [J].

Bianconi, A ;

Saini, NL ;

Lanzara, A ;

Missori, M ;

Rossetti, T ;

Oyanagi, H ;

Yamaguchi, H ;

Oka, K ;

Ito, T .

PHYSICAL REVIEW LETTERS, 1996, 76 (18) :3412-3415

[2] Neutron diffraction evidence of microscopic charge inhomogeneities in the CuO2 plane of superconducting La2-xSrxCuO4 (0≤x≤0.30) [J].

Bozin, ES ;

Kwei, GH ;

Takagi, H ;

Billinge, SJL .

PHYSICAL REVIEW LETTERS, 2000, 84 (25) :5856-5859

[3] COMMON INTERATOMIC POTENTIAL MODEL FOR THE LATTICE-DYNAMICS OF SEVERAL CUPRATES [J].

CHAPLOT, SL ;

REICHARDT, W ;

PINTSCHOVIUS, L ;

PYKA, N .

PHYSICAL REVIEW B, 1995, 52 (10) :7230-7242

[4] Electron-phonon coupling and a polaron in the t-J model: From the weak to the strong coupling regime [J].

Mishchenko, AS ;

Nagaosa, N .

PHYSICAL REVIEW LETTERS, 2004, 93 (03) :036402-1

[5]

Pintschovius L, 1998, PH CH MAT L, V20, P165

[6] Dispersion of incoherent spectral features in systems with strong electron-phonon coupling [J].

Rösch, O ;

Gunnarsson, O .

EUROPEAN PHYSICAL JOURNAL B, 2005, 43 (01) :11-18

[7] Electron-phonon interaction in the t-J model -: art. no. 146403 [J].

Rösch, O ;

Gunnarsson, O .

PHYSICAL REVIEW LETTERS, 2004, 92 (14) :146403-1

[8] LOCAL POLARON EFFECTS IN MIXED-VALENCE SYSTEMS - EXACT MODEL CALCULATION IN THE LIMIT OF LARGE DEGENERACY [J].

SCHONHAMMER, K ;

GUNNARSSON, O .

PHYSICAL REVIEW B, 1984, 30 (06) :3141-3157

[9]

Shen K. M., UNPUB

[10] Missing quasiparticles and the chemical potential puzzle in the doping evolution of the cuprate superconductors [J].

Shen, KM ;

Ronning, F ;

Lu, DH ;

Lee, WS ;

Ingle, NJC ;

Meevasana, W ;

Baumberger, F ;

Damascelli, A ;

Armitage, NP ;

Miller, LL ;

Kohsaka, Y ;

Azuma, M ;

Takano, M ;

Takagi, H ;

Shen, ZX .

PHYSICAL REVIEW LETTERS, 2004, 93 (26)

← 1 2 →