Amorphous grain boundary layers in the ferromagnetic nanograined ZnO films

2011 ◽  
Vol 520 (4) ◽  
pp. 1192-1194 ◽  
Author(s):  
B.B. Straumal ◽  
A.A. Mazilkin ◽  
S.G. Protasova ◽  
A.A. Myatiev ◽  
P.B. Straumal ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Boundary Layers ◽  
Zno Films

Effect of Al concentration in grain and grain boundary region of Al-doped ZnO films: a dielectric approach

2007 ◽  
Vol 41 (2) ◽  
pp. 025307 ◽  
Author(s):  
S Mandal ◽  
H Mullick ◽  
S Majumdar ◽  
A Dhar ◽  
S K Ray
Keyword(s):  
Grain Boundary ◽  
Boundary Region ◽  
Zno Films ◽  
Doped Zno

The grain-boundary-related optical and electrical properties in polycrystalline p-type ZnO films

2006 ◽  
Vol 420 (4-6) ◽  
pp. 448-452 ◽  
Author(s):  
C.Y. Zhang ◽  
X.M. Li ◽  
X.D. Gao ◽  
J.L. Zhao ◽  
K.S. Wan ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Grain Boundary ◽  
Zno Films ◽  
Optical And Electrical Properties ◽  
P Type

Grain boundary layers in nanocrystalline ferromagnetic zinc oxide

JETP Letters ◽  
2010 ◽  
Vol 92 (6) ◽  
pp. 396-400 ◽  
Author(s):  
B. B. Straumal ◽  
A. A. Myatiev ◽  
P. B. Straumal ◽  
A. A. Mazilkin ◽  
S. G. Protasova ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Grain Boundary ◽  
Boundary Layers

Growth of (αTi) grain-boundary layers in Ti–Co alloys

2016 ◽  
Vol 57 (7) ◽  
pp. 703-709 ◽  
Author(s):  
A. S. Gornakova ◽  
S. I. Prokofiev ◽  
B. B. Straumal ◽  
K. I. Kolesnikova
Keyword(s):  
Grain Boundary ◽  
Boundary Layers ◽  
Co Alloys

Infrared and Raman studies of the dead grain-boundary layers in SrTiO3fine-grain ceramics

2007 ◽  
Vol 19 (19) ◽  
pp. 196222 ◽  
Author(s):  
J Petzelt ◽  
T Ostapchuk ◽  
I Gregora ◽  
P Kuzel ◽  
J Liu ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Boundary Layers ◽  
The Dead

Microstructure and secondary phase segregation correlation in epitaxial/oriented ZnO films with unfavorable Cr dopant

2009 ◽  
Vol 24 (2) ◽  
pp. 506-515 ◽  
Author(s):  
L.V. Saraf ◽  
Z.H. Zhu ◽  
C.M. Wang ◽  
M.H. Engelhard
Keyword(s):  
Grain Boundary ◽  
Single Crystals ◽  
Photoelectron Spectroscopy ◽  
Film Growth ◽  
Phase Segregation ◽  
Secondary Phase ◽  
Zno Films ◽  
Carbon Solubility ◽  
Boundary Density ◽  
Film Microstructure

Low solubility dopant-host systems are well suited to study secondary phase segregation-microstructure dependence. We discuss the effect of microstructure on secondary phase segregation in epitaxial/oriented ZnO thin films with Cr as an unfavorable dopant (Cr:ZnO). Since differences in thin film microstructure are a function of the substrate and its orientation, simultaneous chemical vapor depositions were carried out on single crystals of Si (100), c-axis oriented Al2O3 (c-ALO), and r-axis oriented Al2O3 (r-ALO) resulting in epitaxial film growth on r-ALO and c-axis oriented film growth on Si and c-ALO, with a difference in vertical grain boundary density. To enhance the analysis sensitivity to the microstructure difference, the thickness of Cr:ZnO films was maintained at ∼50 nm. High-resolution transmission electron microscopy (HRTEM) analysis indicates uniform stress distribution in Cr:ZnO grown on r-ALO. Surface sensitive x-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectroscopy (TOF-SIMS) techniques were utilized for analysis of the data. We observe that a higher grain boundary density and the presence of an amorphous layer at the interface for films grown on Si(100) single crystal led to interfacial Cr-based secondary phase segregation as opposed to lower grain boundary density and epitaxial films grown on c-ALO and r-ALO single crystals, respectively. We also discuss the effects of trace carbon solubility on the film microstructure/secondary phase segregation relationship.

Influence of Grain boundary Layers on the Dielectric Relaxation of Nb-Doped SrTiO3

1999 ◽  
Vol 38 (Part 1, No. 8) ◽  
pp. 4818-4823 ◽  
Author(s):  
Seong-Ho Kim ◽  
Ho-won Seon ◽  
Jae-Gwan Park ◽  
Jae-Hwan Park ◽  
Yoonho Kim
Keyword(s):  
Grain Boundary ◽  
Dielectric Relaxation ◽  
Boundary Layers

Grain boundary scattering in aluminium-doped ZnO films

1991 ◽  
Vol 205 (1) ◽  
pp. 64-68 ◽  
Author(s):  
S. Ghosh ◽  
A. Sarkar ◽  
S. Chaudhuri ◽  
A.K. Pal
Keyword(s):  
Grain Boundary ◽  
Zno Films ◽  
Boundary Scattering ◽  
Grain Boundary Scattering ◽  
Doped Zno
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