Multiple bosonic mode coupling in the electron self-energy of (La2-xSrx)CuO4.
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 (La2-xSrx)CuO4 samples in the normal state. Fine structure at energies of (40-46) meV and (58-63) meV, and possible fine structure at energies of (23-29) meV and (75-85) meV, have been identified. These observations indicate that, in (La2-xSrx)CuO4, more than one bosonic modes are involved in the coupling with electrons.
Zhou
X J
XJ
Department of Physics, Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94305, USA.
Shi
Junren
J
Yoshida
T
T
Cuk
T
T
Yang
W L
WL
Brouet
V
V
Nakamura
J
J
Mannella
N
N
Komiya
Seiki
S
Ando
Yoichi
Y
Zhou
F
F
Ti
W X
WX
Xiong
J W
JW
Zhao
Z X
ZX
Sasagawa
T
T
Kakeshita
T
T
Eisaki
H
H
Uchida
S
S
Fujimori
A
A
Zhang
Zhenyu
Z
Plummer
E W
EW
Laughlin
R B
RB
Hussain
Z
Z
Shen
Z-X
ZX