Impurity nearest-neighbor distances studied by extended x-ray absorption fine structure: Application to electron-spin resonance

1982 ◽  
Vol 25 (9) ◽  
pp. 5627-5630 ◽  
Author(s):  
J. Azoulay ◽  
E. A. Stern ◽  
D. Shaltiel ◽  
A. Grayevski
Keyword(s):  
Fine Structure ◽  
Electron Spin Resonance ◽  
Electron Spin ◽  
Nearest Neighbor ◽  
X Ray ◽  
Absorption Fine ◽  
Spin Resonance ◽  
X Ray Absorption ◽  
Nearest Neighbor Distances

scholarly journals Nearest Neighbor Distances in SrTiO 3 and BaTiO 3 from the Projection Analysis of the Extended X‐Ray Absorption Fine Structure

2020 ◽  
Vol 257 (7) ◽  
pp. 1900621
Author(s):  
Alireza Bayat ◽  
Angelika Chassé ◽  
Reinhard Denecke ◽  
Stefan Förster ◽  
Paula Huth ◽  
...  
Keyword(s):  
Fine Structure ◽  
Nearest Neighbor ◽  
X Ray ◽  
Absorption Fine ◽  
Projection Analysis ◽  
X Ray Absorption ◽  
Nearest Neighbor Distances

Fluorescence Extended X-Ray Absorption Fine Structure Study on Local Structures of Rare-Earth-Doped InGaGdN

2016 ◽  
Vol 1133 ◽  
pp. 429-433
Author(s):  
Siti Nooraya Mohd Tawil ◽  
Shuichi Emura ◽  
Daivasigamani Krishnamurthy ◽  
Hajime Asahi
Keyword(s):  
Fine Structure ◽  
Rare Earth ◽  
Nearest Neighbor ◽  
Structure Study ◽  
Edge Structure ◽  
X Ray ◽  
Local Structures ◽  
Absorption Fine ◽  
X Ray Absorption

Local structures around gadolinium atoms in rare-earth (RE)-doped InGaGdN thin films were studied by means of fluorescence extended X-ray absorption fine structure (EXAFS) measured at the Gd LIII-edges. The samples were doped with Gd in-situ during growth by plasma-assisted molecular beam epitaxy (PAMBE). Gd LIII-edge EXAFS signal from the GaGdN, GdN and Gd foil were also measured as reference. The X-ray absorption near edge structure (XANES) spectra around Gd LIII absorption edge of InGaGdN samples observed at room temperature indicated the enhancement of intensities with the increase of Gd composition. Further EXAFS analysis inferred that the Gd atoms in InGaN were surrounded by similar atomic shells as in the case of GaGdN with the evidence indicating majority of Gd atoms substituted into Ga sites of InGaGdN. A slight elongation of bond length for the 2nd nearest-neighbor (Gd–Ga) of sample with higher Gd concentration was also observed.

Short Range Order Strucrures in Y-Pr-Ba-Cu-O System Studied by X-Ray Absorption Fine Structure (XAFS) Techniques

1990 ◽  
Vol 209 ◽  
Author(s):  
Y.H. Kao ◽  
A. Krol ◽  
Z.H. Ming ◽  
C.S. Lin ◽  
Y.L. Soo ◽  
...  
Keyword(s):  
Fine Structure ◽  
Local Structure ◽  
Short Range ◽  
Direct Evidence ◽  
Nearest Neighbor ◽  
Compound System ◽  
Local Distribution ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

ABSTRACTLocal structure around the constituent atoms in the compound system Y1-xPrxBa2CU3O7-y has been investigated by means of x-ray absorption fine structure (XAFS) techniques. By comparing the local structure in the compound x=1 with its counterpart x=0, the XAFS results provide a direct evidence that Pr has replaced Y in the material. The nearest-neighbor structure in the CuO2 planes seems to remain intact as × varies from 0 to 1, indicating that substitution of Pr for Y does not disturb the local distribution of holes in the CuO2 planes. We suggest that local disorder and distortions in the second-neighbor bonding configuration could be responsible for suppression of superconductivity with increasing Pr content in the system.

EFFECT OF HEAT TREATMENT ON MICROSTRUCTURE AND MAGNETOSTRICTIVE PROPERTY OF MELT-SPUN Fe85Ga15 RIBBONS

2013 ◽  
Vol 27 (30) ◽  
pp. 1350174 ◽  
Author(s):  
HAO LIU ◽  
HAIOU WANG ◽  
MENGXIONG CAO ◽  
WEISHI TAN ◽  
YANGGUANG SHI ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Fine Structure ◽  
High Resolution ◽  
Nearest Neighbor ◽  
Annealed Sample ◽  
X Ray Diffraction ◽  
X Ray ◽  
Absorption Fine ◽  
Melt Spun ◽  
X Ray Absorption

In order to study the microstructure of Fe – Ga alloy, Fe 85 Ga 15 ribbons prepared with different wheel velocity were studied by high resolution X-ray diffraction (HRXRD) and extend X-ray absorption fine structure (EXAFS). HRXRD patterns showed that only disordered A 2 phase was observed in as-cast Fe 85 Ga 15 alloy. A modified- DO 3 phase was detected in all of the melt spun samples. The HRXRD associated with EXAFS results indicated that Ga atoms were located as second-nearest neighbor along [100] orientation. A little DO 3 phase was found in ribbons annealed at 1000°C under 0.06 MPa Ar atmosphere. The result of magnetostriction measurement revealed that in the ribbon prepared with higher wheel velocity, more modified- DO 3 phase will enhance the magnetostriction. DO 3 phase in the annealed sample will deteriorate the magnetostrictive properties of Fe – Ga ribbons.

X-ray absorption, photoemission and electron spin resonance studies of Ar+ ion implanted ZnO

2018 ◽  
Vol 229 ◽  
pp. 68-74 ◽  
Author(s):  
B. Ghosh ◽  
Dilip K. Mishra ◽  
H.T. Wang ◽  
T.S. Mahule ◽  
Sekhar C. Ray ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
X Ray ◽  
Spin Resonance ◽  
X Ray Absorption ◽  
Ion Implanted

scholarly journals Erratum: “Nearest-neighbor oxygen distances in liquid water and ice observed by x-ray Raman based extended x-ray absorption fine structure” [J. Chem. Phys. 127, 174504 (2007)]

2008 ◽  
Vol 128 (8) ◽  
pp. 089902 ◽  
Author(s):  
Uwe Bergmann ◽  
Andrea Di Cicco ◽  
Philippe Wernet ◽  
Emiliano Principi ◽  
Pieter Glatzel ◽  
...  
Keyword(s):  
Fine Structure ◽  
Liquid Water ◽  
Nearest Neighbor ◽  
Chem Phys ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

Exafs and Exelfs Study of the Structure of Pd-Ni-P Bulk Metallic Glasses

2000 ◽  
Vol 644 ◽  
Author(s):  
Faisal M. Alamgir ◽  
Himanshu Jain ◽  
David B. Williams ◽  
Gilles Hug ◽  
Ricardo B. Schwarz ◽  
...  
Keyword(s):  
Fine Structure ◽  
Metallic Glasses ◽  
Nearest Neighbor ◽  
Bulk Metallic Glasses ◽  
Weighted Average ◽  
Ternary Alloys ◽  
X Ray ◽  
Efficient Packing ◽  
X Ray Absorption ◽  
Nearest Neighbor Distances

AbstractWe have explored the short-range order around all three constituent atoms in (Pd-Ni)80P20 bulk metallic glasses (BMGs), a system that is a prototype for a whole class of BMG formers containing 80% transition metal and 20% metalloid. We have examined the changes in the nearest neighbor environments around the transition metals in (Pd-Ni)80P20 glasses using extended X-ray absorption fine structure (EXAFS) in comparison to their binary counterparts. We have done similar studies around the coordination of P using extended energy loss fine structure (EXELFS). The environment around the all the atoms in Pd60Ni20P20 and Pd30Ni50P20are very similar to those of the binary phosphides at the ends of the composition range. However, the (Pd-Ni)80P20 glasses are not simply solid solutions of the phases. The nearest neighbor distances of the metals are reduced in the ternary alloys with respect to those of the binary phosphides. The best glass former in this series, Pd40Ni40P20 is nearly isostructural to Pd30Ni50P20 but shows shorter distances at the 2nd and 3rd coordination shells, which we believe is due to more efficient packing in this glass. The metal environments in Pd40Ni40P20, on the other hand, are better described by a weighted average of those of Pd30Ni50P20 and Pd60Ni20P20.

Nearest-neighbor oxygen distances in liquid water and ice observed by x-ray Raman based extended x-ray absorption fine structure

2007 ◽  
Vol 127 (17) ◽  
pp. 174504 ◽  
Author(s):  
Uwe Bergmann ◽  
Andrea Di Cicco ◽  
Philippe Wernet ◽  
Emiliano Principi ◽  
Pieter Glatzel ◽  
...  
Keyword(s):  
Fine Structure ◽  
Liquid Water ◽  
Nearest Neighbor ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption
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