X-RAY AND PHOTOELECTRON-SPECTRA-BASED ANALYSIS OF ELECTRONIC STRUCTURE OF HIGH-Tc SUPERCONDUCTORS

1991 ◽  
Vol 05 (08) ◽  
pp. 1097-1146 ◽  
Author(s):  
E. Z. KURMAEV ◽  
L. D. FINKELSTEIN
Keyword(s):  
Electronic Structure ◽  
Photoelectron Spectra ◽  
High Tc Superconductors ◽  
High Tc ◽  
X Ray

X-RAY SPECTRA AND ELECTRONIC STRUCTURE OF HIGH Tc SUPERCONDUCTORS

1988 ◽  
Vol 02 (03n04) ◽  
pp. 393-419 ◽  
Author(s):  
E. Z. KURMAEV ◽  
V. I. NEFEDOV ◽  
L. D. FINKELSTEIN
Keyword(s):  
Electronic Structure ◽  
High Tc Superconductors ◽  
High Tc ◽  
X Ray

X-ray emission spectra and electronic structure of high-Tc superconductors and binary oxides

1994 ◽  
Vol 68 ◽  
pp. 431-438 ◽  
Author(s):  
L.D. Finkelstein ◽  
V.R. Galakhov ◽  
V.V. Fedorenko ◽  
L.V. Elokhina ◽  
A.A. Samokhvalov ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Emission Spectra ◽  
High Tc Superconductors ◽  
High Tc ◽  
X Ray ◽  
Binary Oxides

X-ray spectra and electronic structure of high-Tc superconductors La1.83Sr0.17CuO4 and Bi4Ca3Sr3O16

1989 ◽  
Vol 160 (3-4) ◽  
pp. 267-272 ◽  
Author(s):  
V.R. Galakhov ◽  
S.M. Butorin ◽  
L.D. Finkelstein ◽  
E.Z. Kurmaev ◽  
Yu.M. Yarmoshenko ◽  
...  
Keyword(s):  
Electronic Structure ◽  
High Tc Superconductors ◽  
High Tc ◽  
X Ray

LOCAL ELECTRONIC STRUCTURE OF DOPING ATOMS IN MA2Can-1CunO2n+3 HIGH-Tc SUPERCONDUCTORS WITH [M-12(n-1)n] TYPE STRUCTURES

2002 ◽  
Vol 09 (02) ◽  
pp. 1345-1349
Author(s):  
E. Z. KURMAEV ◽  
A. MOEWES ◽  
N. D. ZHIGADLO ◽  
E. TAKAYAMA-MUROMACHI ◽  
I. A. NEKRASOV ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Partial Substitution ◽  
High Tc Superconductors ◽  
High Tc ◽  
X Ray ◽  
Fluorescence Measurements ◽  
Local Electronic Structure ◽  
M 12 ◽  
The Given ◽  
Pentavalent State

Results of X-ray fluorescence measurements of MA 2 Ca n-1 Cu n O 2n + 3 compounds with [ M -12(n-1)n] type structures, ( C 0.8 N 0.2 Sr 2 CuO 5.3, [ Cu 0.25 (C,N) 0.75] Sr 2 CaCu 2 O y, Cu 0.5 V 0.5 Sr 2 CaCu 2 O 7.5, Cu 0.5 V 0.5 Sr 2 Ca 2 Cu 3 O 9.4, Cu 0.5 V 0.5 Sr 2( Ca 3.6 Sr 0.4) Cu 5 O 13.5 and Cu 0.5 V 0.5 Sr 2( Ca 4.7 Sr 0.3) Cu 6 O 15.3, are presented. The experiments show that C-atoms form a distorted CO 3 oxyacid group with a partial substitution of copper and nitrogen atoms in the M-sites. We conclude that the CO 32- group in (C,N) Sr 2 Ca n-1 Cu n O y and (Cu,C,N) Sr 2 Ca n-1 Cu n O y is substituted by the NO 2- which induces the creation of the hole carriers in these compounds. We have found that V-atoms in the given compounds form ( VO 4)3- tetrahedrons and have a pentavalent state.

Studies of Microstructures in High-Tc Superconductors by X-ray Absorption Techniques

1990 ◽  
pp. 281-284
Author(s):  
A. Krol ◽  
C. J. Sher ◽  
Z. H. Ming ◽  
C. S. Lin ◽  
L. W. Song ◽  
...  
Keyword(s):  
High Tc Superconductors ◽  
High Tc ◽  
X Ray ◽  
X Ray Absorption

X-ray emission spectra of vanadium atoms in a new series of (Cu,V)-based high-Tc superconductors

2003 ◽  
Vol 170 (1) ◽  
pp. 188-191 ◽  
Author(s):  
E.Z. Kurmaev ◽  
A. Moewes ◽  
G.T. Woods ◽  
T.A. Callcott ◽  
N.D. Zhigadlo ◽  
...  
Keyword(s):  
Emission Spectra ◽  
High Tc Superconductors ◽  
High Tc ◽  
X Ray

scholarly journals Electronic Structure and X-Ray Photoelectron Spectra of YNi4B Compound

2003 ◽  
Vol 104 (5) ◽  
pp. 487-494 ◽  
Author(s):  
M. Pugaczowa-Michalska ◽  
G. Chełkowska ◽  
A. Kowalczyk
Keyword(s):  
Electronic Structure ◽  
Photoelectron Spectra ◽  
X Ray

scholarly journals Positron Annihilation Studies of the Electronic Structure and Fermiology of High-Tc Superconductors

1993 ◽  
Vol 48 (1-2) ◽  
pp. 398-405 ◽  
Author(s):  
L. C. Smedskjaer ◽  
A. Bansil
Keyword(s):  
Electronic Structure ◽  
Fermi Surface ◽  
Positron Annihilation ◽  
Normal State ◽  
Theoretical Work ◽  
High Tc Superconductors ◽  
Band Theory ◽  
High Tc ◽  
Remarkable Agreement ◽  
Conventional Picture

Abstract We discuss the application of the positron annihilation angular correlation (ACAR) spectroscopy for investigating the electronic structure and Fermiology of high-Tc superconductors, with focus on the YBa2Cu3O7 system where most of the experimental and theoretical work has to date been concentrated. Detailed comparisons between the measured 2D-ACAR positron spectra and the corresponding band theory predictions show a remarkable agreement (for the normal state), indicat-ing that the electronic structure and Fermi surface of this material is described reasonably by the conventional picture.

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