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23 April 2024

» arxiv » cond-mat/0405130

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Multiple Bosonic Mode Coupling in Electron Self-Energy of (La_2-xSr_x)CuO_4
X. J. Zhou ; Junren Shi ; T. Yoshida ; T. Cuk ; W. L. Yang ; V. Brouet ; J. Nakamura ; N. Mannella ; Seiki Komiya ; Yoichi Ando ; F. Zhou ; W. X. Ti ; J. W. Xiong ; Z. X. Zhao ; T. Sasagawa ; T. Kakeshita ; H. Eisaki ; S. Uchida ; A. Fujimori ; Zhenyu Zhang ; E. W. Plummer ; R. B. Laughlin ; Z. Hussain ; Z.-X. Shen ;
Date:	7 May 2004
Journal:	Phys. Rev. Lett. 95 (2005) 117001
Subject:	Strongly Correlated Electrons; Superconductivity \| cond-mat.str-el cond-mat.supr-con
Abstract:	High resolution angle-resolved photoemission spectroscopy data along the (0,0)-($pi$,$pi$) nodal direction with significantly improved statistics reveal fine structure in the electron self-energy of the underdoped (La$_{2-x}$Sr$_x$)CuO$_4$ samples in the normal state. Fine structure at energies of (40$sim$46) meV and (58$sim$63)meV, and possible fine structure at energies of (23$sim$29)meV and (75$sim$85)meV, have been identified. These observations indicate that, in LSCO, more than one bosonic modes are involved in the coupling with electrons.
Source:	arXiv, cond-mat/0405130
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