Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Chen, Changkang"'
Publikováno v:
Journal of the Serbian Chemical Society, Vol 65, Iss 9, Pp 611-618 (2000)
Bi12GeO20 single crystals were grown by the Czochralski technique. Suitable polishing and etching solutions were determined. Reflection spectra were recorded in the wave numbers range 20-5000 cm-1, and compared with the spectra of Bi12SiO20 single
Externí odkaz:
https://doaj.org/article/2b5392a152fa47058670f104cea9ab0c
Autor:
Warren, S., Flavell, W.R. *, Thomas, A.G., Hollingworth, J., Dunwoody, P.M., Downes, S., Chen, Changkang
Publikováno v:
In Surface Science 1999 436(1):1-8
Autor:
Aswini K. Pradhan, F. R. Wondre, B.M. Wanklyn, Chen Changkang, J.W. Hodby, Andrew T. Boothroyd, S.J. Hazell, Hu Yongle
Y 1 x Pr x )Ba 2 Cu 3 O 7- y is a unique superconductive material for the investigation of the interrelation between crystal structure, chemical composition and physical properties. In order to grow large crystals of high quality, an extensive study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3514a85a9d6058208361d419b592f14
https://doi.org/10.1016/s0022-0248(07)80041-8
https://doi.org/10.1016/s0022-0248(07)80041-8
Publikováno v:
Physical Review B. 60:698-706
Autor:
Chen Changkang
Publikováno v:
Progress in Crystal Growth and Characterization of Materials. 36:1-97
Publikováno v:
Physica C: Superconductivity. 292:218-224
We have investigated the dimensionality of the superconducting state in oxygen reduced YBa2Cu3O6.7 (Tc = 63 K_via measurements of the low-field magnetization M(H) with the field applied parallel to the CuO2-planes. At low temperatures, the c-axis sur
Publikováno v:
Physical Review Letters. 79:1730-1733
We find experimentally that the irreversibility line, H{sub irr}(T) , and the reversible magnetization of twinned YBa{sub 2}Cu {sub 3}O{sub 7} crystals both show 3D XY scaling, which suggests a common origin for both quantities. Analysis of this resu
Autor:
A. Longmore, A.N. Christensen, Niels Hessel Andersen, H. Casalta, Chen Changkang, Hu Yongle, P. Schleger, M. P. Nutley, Andrew T. Boothroyd
Publikováno v:
Physical Review B. 53:9382-9395
The magnetic ordering in single crystals of PrBa{sub 2}Cu{sub 3}O{sub 6+{ital x}} has been investigated by elastic neutron scattering over the full range of temperatures for reduced and oxygenated crystals. The crystals were grown in alumina crucible
Autor:
M. Seshasayee, K. Sethupathi, Chen Changkang, J.W. Hodby, S. Uma, Hu Yongle, T. Sarkar, B.M. Wanklyn, G. Rangarajan
Publikováno v:
Physical Review B. 53:6829-6835
Publikováno v:
Journal of Crystal Growth. 158:248-254
Bulk single crystals of superconducting YBCO (YBa 2 Cu 3 O 7 ), grown with incorporation of different additives like BaF 2 , B 2 O 3 and Bi 2 O 3 , have been investigated to gain an insight into the problem of combating T c degradation due to alumini