Investigation of the unoccupied states in Sr2YRuO6 single crystals doped with Cu

被引：8

作者：

Chen, C. L. ^{[1
]}

Rao, S. M. ^{[1
]}

Wang, K. J. ^{[1
]}

Hsu, F. C. ^{[1
]}

Lee, Y. C. ^{[1
,2
]}

Dong, C. L. ^{[1
]}

Chan, T. S. ^{[3
]}

Lee, J. F. ^{[3
]}

Ling, M. C. ^{[4
]}

Liu, H. L. ^{[4
]}

Wu, M. K. ^{[1
]}

机构：

[1] Acad Sinica, Inst Phys, Taipei, Taiwan

[2] Natl Tsing Hua Univ, Dept Phys, Hsinchu, Taiwan

[3] Natl Synchrotron Radiat Res Ctr, Hsinchu, Taiwan

[4] Natl Taiwan Normal Univ, Dept Phys, Taipei 117, Taiwan

来源：

NEW JOURNAL OF PHYSICS | 2009年 / 11卷

关键词：

X-RAY-ABSORPTION; DOUBLE PEROVSKITE; ELECTRONIC-STRUCTURE; BAND-STRUCTURE; SUPERCONDUCTIVITY; RUTHENIUM; MAGNETISM; SPECTRA; BEHAVIOR; SYSTEM;

D O I：

10.1088/1367-2630/11/7/073024

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electronic structure single crystals of the new double perovskite Sr2YRu1-xCuxO6 (x = 0-0.05) has been investigated by x-ray absorption near-edge structure (XANES) spectroscopy. The Cu K-edge spectra show that Cu is incorporated as Cu1+ and Cu2+ in the crystals grown in air and in an oxygen atmosphere and Ru5+ is seen in the Ru K-edge spectra. The O K-edge and the Ru L-3-edge spectra indicate an increase in the unoccupied states ( hole concentration) as x is increased, accompanied by a lattice distortion from an increased O-Ru-O bond angle. These changes observed even with a small Cu addition are interpreted to result from the Cu 3d-O 2p hybridization as Cu replaces Ru in the octahedral sites.

引用

页数：8

共 50 条

[21] EPR and Optical Study of Cu2+ Ions Doped in Sodium Zinc Sulfate Tetrahydrate Single Crystals
Kripal, Ram
Shukla, Santwana
APPLIED MAGNETIC RESONANCE, 2011, 41 (01) : 95 - 105
[22] A calorimetric investigation of RbFe2As2 single crystals
Khim, Seunghyun
Aswartham, Saicharan
Grinenko, Vadim
Efremov, Dmitry
Blum, Christian G. F.
Steckel, Frank
Gruner, Daniel
Wolter, Anja U. B.
Drechsler, Stefan-Ludwig
Hess, Christian
Wurmehl, Sabine
Buechner, Bernd
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2017, 254 (01):
[23] Optical Characterization of Undoped and Au-doped MoS2 Single Crystals
Sigiro, Mula
Huang, Ying-Sheng
Ho, Ching-Hwa
ADVANCED DEVELOPMENT IN INDUSTRY AND APPLIED MECHANICS, 2014, 627 : 50 - +
[24] Effect of reduction in the density of states on fluctuation conductivity in Bi2Sr2CaCu2O8+x single crystals
Chowdhury, P
Bhatia, S
PHYSICA C, 1999, 319 (3-4): : 150 - 158
[25] Thermoluminescence study of Cu, Ag and Mn doped lithium tetraborate single crystals and glasses
Ignatovych, Magdalyna
Fasoli, Mauro
Kelemen, Andras
RADIATION PHYSICS AND CHEMISTRY, 2012, 81 (09) : 1528 - 1532
[26] Investigation of different hole-doping routes in Cu(Ba,Sr)2(Yb1-xCax)Cu2O6+z
Fujinami, K
Karppinen, M
Yamauchi, H
PHYSICA C, 1998, 300 (1-2): : 17 - 25
[27] Glassiness and superconductivity in strongly Pr-doped YBa2Cu3O7-δ single crystals
Sandu, V.
Gyawali, P.
Katuwal, T.
Almasan, C. C.
Taylor, B. J.
Maple, M. B.
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2007, 9 (05): : 1277 - 1280
[28] An electron magnetic resonance and optical study of Cu2+ -doped zinc ammonium phosphate hexahydrate single crystals
Kripal, Ram
Misra, Madan Gopal
PHYSICA SCRIPTA, 2012, 85 (02)
[29] Growth and electric transport of Ca-doped PrBa2Cu3O7-δ single crystals
Luszczek, M
Sadowski, W
CRYSTAL RESEARCH AND TECHNOLOGY, 2001, 36 (8-10) : 917 - 923
[30] Electron spectroscopy of single-layer (n=1) Bi2Sr2-xLaxCuO6+δ crystals at optimal doping
Manzke, R
Müller, R
Schneider, M
Janowitz, C
Krapf, A
Müller, A
Dwelk, H
JOURNAL OF SUPERCONDUCTIVITY, 2000, 13 (06): : 883 - 887

← 1 2 3 4 5 →