Vortex motion in YBa2Cu3O7−δ twinned single crystals and epitaxial films

2004 ◽  
Vol 95 (5) ◽  
pp. 2569-2576 ◽  
Author(s):  
P. Bernstein ◽  
J. F. Hamet
2004 ◽  
Vol 95 (5) ◽  
pp. 2441-2447 ◽  
Author(s):  
A. G. Birdwell ◽  
T. J. Shaffner ◽  
D. Chandler-Horowitz ◽  
G. H. Buh ◽  
M. Rebien ◽  
...  

1997 ◽  
Vol 23 (12) ◽  
pp. 962-967 ◽  
Author(s):  
A. V. Bondarenko ◽  
V. A. Shklovskij ◽  
R. V. Vovk ◽  
M. A. Obolenskii ◽  
A. A. Prodan

1997 ◽  
Vol 282-287 ◽  
pp. 2033-2034 ◽  
Author(s):  
S.N. Gordeev ◽  
P.A.J. de Groot ◽  
M. Oussena ◽  
R.M. Langan ◽  
A.P. Rassau ◽  
...  

1987 ◽  
Vol 99 ◽  
Author(s):  
K. Takagi ◽  
M. Hirao ◽  
M. Hiratani ◽  
H. Kakibayashi ◽  
T. Aida ◽  
...  

ABSTRACTYBa2Cu3O7-δ single crystals and epitaxial films are grown and characterized. In flux growth for bulk crystals, effects of growth conditions on yield and electric resistivity of crystals are examined. The yield of flaky crystals depends on the formation of cavities. The transition temperature is 86 K after annealing in an oxygen atmosphere. Films are prepared on SrTiO3 by sputtering and epitaxial growth is confirmed by high resolution electron microscopy. Periodic lattice defects are observed near the interface between the substrate and the film. It seems that these defects result from the diffusion of impurities from the substrate.


2000 ◽  
Vol 5 (S1) ◽  
pp. 425-431 ◽  
Author(s):  
A.R.A. Zauner ◽  
J.J. Schermer ◽  
W.J.P. van Enckevort ◽  
V. Kirilyuk ◽  
J.L. Weyher ◽  
...  

The N-side of GaN single crystals with off-angle orientations of 0°, 2°, and 4° towards the [100] direction was used as a substrate for homo-epitaxial MOCVD growth. The highest misorientation resulted in a reduction of the density of grown hillocks by almost two orders of magnitude as compared with homo-epitaxial films grown on the exact (000) surface. The features still found on the 4° misoriented sample after growth can be explained by a model involving the interaction of steps, introduced by the misorientation and the hexagonal hillocks during the growth process.


1999 ◽  
Vol 595 ◽  
Author(s):  
A.R.A. Zauner ◽  
J.J. Schermer ◽  
W.J.P. van Enckevort ◽  
V. Kirilyuk ◽  
J.L. Weyher ◽  
...  

AbstractThe N-side of GaN single crystals with off-angle orientations of 0°, 2°, and 4° towards the [1010] direction was used as a substrate for homo-epitaxial MOCVD growth. The highest misorientation resulted in a reduction of the density of grown hillocks by almost two orders of magnitude as compared with homo-epitaxial films grown on the exact (0001) surface. The features still found on the 4° misoriented sample after growth can be explained by a model involving the interaction of steps, introduced by the misorientation and the hexagonal hillocks during the growth process.


1992 ◽  
Vol 279 ◽  
Author(s):  
Alexander V. Suvorov ◽  
D. A. Plotkin ◽  
V. N. Makarov ◽  
V. N. Svetlov

ABSTRACTSingle crystals and epitaxial films of SiC - 4H and 6H were implanted at an energy of 40 and 90 KeV by ions of Al at various temperatures and high dose.The implanted layers were studied before and after annealing by Raman scattering, Auger electron spectroscopy and SIMS. Results of this investigation show intensive graphitization of the implanted layer surface, the formation of great associations of defects in the implanted layer and shallow defects. It was found that recrystallization of the implanted layer pushes out a considerable part of aluminum atoms. The nature of the processes in silicon carbide during implantation and annealing is discussed.


2006 ◽  
Author(s):  
Terukazu Nishizaki ◽  
Hiromi Fujita ◽  
Kuniaki Kasuga ◽  
Norio Kobayashi

Sign in / Sign up

Export Citation Format

Share Document