Local lattice anomalies in underdoped YBa2Cu3O7-Σ probed by X-ray absorption fine structure

1997 ◽  
Vol 10 (4) ◽  
pp. 415-419 ◽  
Author(s):  
H. Oyanagl ◽  
J. Zegenhagen
Keyword(s):  
Fine Structure ◽  
X Ray ◽  
Absorption Fine ◽  
Local Lattice ◽  
X Ray Absorption

STUDY OF LOCAL STRUCTURE IN UNDER-DOPED La2-xSrxCuO4-y BY POLARIZED EXAFS

2002 ◽  
Vol 16 (11n12) ◽  
pp. 1641-1648 ◽  
Author(s):  
K. B. GARG ◽  
C. SANCHEZ ◽  
J. GARCIA ◽  
J. BLASCO ◽  
R. K. SINGHAL ◽  
...  
Keyword(s):  
Fine Structure ◽  
Single Crystal ◽  
Temperature Dependence ◽  
Local Structure ◽  
X Ray ◽  
Absorption Fine ◽  
Local Lattice ◽  
X Ray Absorption

Temperature dependence of local structure of the CuO 2 plane has been studied by in plane polarized (E//ab) Cu K-edge extended X-ray absorption fine structure (EXAFS) experiments on an under-doped single crystal of superconducting La1.87Sr0.13CuO 4-y system with T c =32  K . The temperature dependence of the Debye–Waller factors for the Cu-O and Cu-La/Sr pairs are determined. We find that the motion of Cu and O atoms in the Cu-O bond is partially correlated at higher temperatures, going over to an uncorrelated motion at lower temperatures. The results are discussed in terms of the local lattice instabilities and stripes as reported in other systems.

Local Lattice Anomalies in Epitaxial YBa2Cu3O7-δThin Film Studied by X-Ray Absorption Fine Structure

1995 ◽  
Vol 64 (7) ◽  
pp. 2563-2571 ◽  
Author(s):  
Hiroyuki Oyanagi ◽  
Hidekazu Kimura ◽  
Takahito Terashima ◽  
Yoshichika Bando
Keyword(s):  
Fine Structure ◽  
X Ray ◽  
Absorption Fine ◽  
Local Lattice ◽  
X Ray Absorption

X-Ray Absorption Fine Structure Applied to the Study of Systems with Lattice Instabilities

1996 ◽  
Vol 437 ◽  
Author(s):  
J. MUSTRE DE Leon ◽  
S. D. Conradson ◽  
T. Tyson ◽  
A. R. Bishop ◽  
M. Salkola ◽  
...  
Keyword(s):  
Fine Structure ◽  
Manganese Oxide ◽  
Charge Carriers ◽  
Lattice Instability ◽  
Metal Insulator ◽  
X Ray ◽  
Absorption Fine ◽  
Local Lattice ◽  
Site Cluster ◽  
X Ray Absorption

AbstractWe present a simplified model of electrons and phonons in a three-site cluster as a paradigm of a system exhibiting a lattice instability. We point out the utility of X-ray absorption fine structure (XAFS) in the study of materials where the coupling between electrons and phonons leads to the appearance of such lattice instabilities. As examples of these systems, we present X-ray absorption fine structure (XAFS) measurements on magnetic manganese oxide materials and II-VI semiconductors. Both of these systems exhibit local lattice instabilities which are reflected in the transport properties. In the case of the manganese oxide La0.67Ca0.33MnO3 we observe a change in the Mn-O local structure accompanying the ferromagnetic and metal-insulator transitions. For In doped CdTe we observe the appearance of a lattice distortion centered at the Cd atoms as the In concentration is increased. This distortion is associated with the trapping of free charge carriers, leading to the saturation of the conductivity as the In concentration increases.

Neutron Diffraction and X-ray Absorption Fine Structure Evidence for Local Lattice Distortions and Aperiodic Antisite Substitution in Cu2ZnSnS4Nanoparticles

2014 ◽  
Vol 118 (45) ◽  
pp. 26292-26303 ◽  
Author(s):  
Francisco J. Espinosa-Faller ◽  
Dylan R. Conradson ◽  
Shannon C. Riha ◽  
Mary B. Martucci ◽  
Sarah J. Fredrick ◽  
...  
Keyword(s):  
Fine Structure ◽  
Neutron Diffraction ◽  
X Ray ◽  
Absorption Fine ◽  
Local Lattice ◽  
Lattice Distortions ◽  
X Ray Absorption

Local lattice expansion around Pd impurities in Cu and its influence on the Pd density of states: An extended x-ray-absorption fine-structure and Auger study

1987 ◽  
Vol 36 (17) ◽  
pp. 9098-9106 ◽  
Author(s):  
P. Weightman ◽  
H. Wright ◽  
S. D. Waddington ◽  
D. van der Marel ◽  
G. A. Sawatzky ◽  
...  
Keyword(s):  
Fine Structure ◽  
Density Of States ◽  
Lattice Expansion ◽  
X Ray ◽  
Absorption Fine ◽  
Local Lattice ◽  
X Ray Absorption

Local lattice distortion inSi1−x−yGexCyepitaxial layers from x-ray absorption fine structure

2001 ◽  
Vol 63 (4) ◽  
Author(s):  
D. De Salvador ◽  
M. Tormen ◽  
M. Berti ◽  
A. V. Drigo ◽  
F. Romanato ◽  
...  
Keyword(s):  
Fine Structure ◽  
Lattice Distortion ◽  
Local Lattice Distortion ◽  
X Ray ◽  
Absorption Fine ◽  
Local Lattice ◽  
X Ray Absorption

scholarly journals Determination of the local structure of Sr2−xMxIrO4 (M = K, La) as a function of doping and temperature

2018 ◽  
Vol 20 (36) ◽  
pp. 23783-23788 ◽  
Author(s):  
Kensei Terashima ◽  
Eugenio Paris ◽  
Eduardo Salas-Colera ◽  
Laura Simonelli ◽  
Boby Joseph ◽  
...  
Keyword(s):  
Fine Structure ◽  
Local Structure ◽  
Lattice Structure ◽  
Doping Effect ◽  
X Ray ◽  
Absorption Fine ◽  
Local Lattice ◽  
Carrier Doping ◽  
X Ray Absorption

The carrier doping effect on the local lattice structure of Sr2IrO4 has been studied by extended X-ray absorption fine structure measurements.

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