X-ray absorption near-edge spectra of overdoped La2-xSrxCuO4 high-Tc superconductors

被引：10

作者：

Ahmed, Towfiq ^{[1
]}

Das, Tanmoy ^{[2
]}

Kas, J. J. ^{[1
]}

Lin, Hsin ^{[2
]}

Barbiellini, B. ^{[2
]}

Vila, Fernando D. ^{[1
]}

Markiewicz, R. S. ^{[2
]}

Bansil, A. ^{[2
]}

Rehr, J. J. ^{[1
]}

机构：

[1] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[2] Northeastern Univ, Dept Phys, Boston, MA 02115 USA

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 11期

关键词：

ELECTRONIC-STRUCTURE; GREENS-FUNCTION; STATES; ALLOYS;

D O I：

10.1103/PhysRevB.83.115117

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present results for realistic modeling of the x-ray absorption near edge structure (XANES) of the overdoped high-T-c superconductor La2-xSrxCuO4 in the hole doping range x = 0.20 - 0.30. Our computations are based on a real-space Green's function approach in which strong-correlation effects are taken into account in terms of a doping-dependent self-energy. The predicted O K-edge XANES is found to be in good accord with the corresponding experimental results in this overdoped regime. We find that the low energy spectra are dominated by the contribution of O atoms in the cuprate planes, with little contribution from apical O atoms.

引用

页数：5

共 32 条

[1] Theory of solid-state contributions to the x-ray elastic scattering amplitude
Ankudinov, AL
Rehr, JJ
[J]. PHYSICAL REVIEW B, 2000, 62 (04): : 2437 - 2445
[2] Electronic structure and magnetism of Fe3-xVxX (X=Si, Ga, and Al) alloys by the KKR-CPA method
Bansil, A
Kaprzyk, S
Mijnarends, PE
Tobola, J
[J]. PHYSICAL REVIEW B, 1999, 60 (19): : 13396 - 13412
[3] BANSIL A, 1993, Z NATURFORSCH A, V48, P165
[4] BANSIL A, 2011, J PHYS CHEM IN PRESS
[5] BASAK S, 2010, MARCH 2010 APS M
[6] Origin of the high-energy kink in the photoemission spectrum of the high-temperature superconductor Bi2Sr2CaCu2O8
Basak, Susmita
Das, Tanmoy
Lin, Hsin
Nieminen, J.
Lindroos, M.
Markiewicz, R. S.
Bansil, A.
[J]. PHYSICAL REVIEW B, 2009, 80 (21):
[7] RELATION BETWEEN STRUCTURE AND DOPING IN LA2-XSRXCUO4+DELTA - A NEUTRON-DIFFRACTION STUDY ON SINGLE-CRYSTALS
BRADEN, M
SCHWEISS, P
HEGER, G
REICHARDT, W
FISK, Z
GAMAYUNOV, K
TANAKA, I
KOJIMA, H
[J]. PHYSICA C, 1994, 223 (3-4): : 396 - 416
[8] ELECTRONIC STATES IN LA2-XSRXCUO4+GAMMA PROBED BY SOFT-X-RAY ABSORPTION
CHEN, CT
SETTE, F
MA, Y
HYBERTSEN, MS
STECHEL, EB
FOULKES, WMC
SCHLUTER, M
CHEONG, SW
COOPER, AS
RUPP, LW
BATLOGG, B
SOO, YL
MING, ZH
KROL, A
KAO, YH
[J]. PHYSICAL REVIEW LETTERS, 1991, 66 (01) : 104 - 107
[9] Optical conductivity and the correlation strength of high-temperature copper-oxide superconductors
Comanac, Armin
De' Medici, Luca
Capone, Massimo
Millis, A. J.
[J]. NATURE PHYSICS, 2008, 4 (04) : 287 - 290
[10] Optical model-solution to the competition between a pseudogap phase and a charge-transfer-gap phase in high-temperature cuprate superconductors
Das, Tanmoy
Markiewicz, R. S.
Bansil, A.
[J]. PHYSICAL REVIEW B, 2010, 81 (17):

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