Results 271 to 280 of about 313,193 (294)

Diffusion of Nb in Nb-H Alloys

Defect and Diffusion Forum, 2005
Self-diffusion coefficient of 95Nb in NbHx alloys (x=0.05,0.25 and 0.3) has been determined in the temperature range from 823 to 1323 K by using a serial sputter-microsectioning technique. The self-diffusion coefficient of Nb in the NbHx alloys are larger than that in Nb, suggesting that vacancies are formed by hydrogen dissolution, that is, the ...
Yoshihiro Yamazaki, Takahiro Iida, Yoshiaki Iijima, Yuh Fukai   +3 more
openaire   +1 more source

Tunnel barrier growth dynamics of Nb/AlOxAl/Nb and Nb/A1NxAl/Nb Josephson junctions

Physica C: Superconductivity, 1995
The growth of very thin aluminum oxide and aluminum nitride tunnel barriers on top of an about 7 nm aluminum layer is deduced by measurements of the reflectivity change of a laser beam due to the decrease of the aluminum laser thickness. Within the first seconds of the process thermal aluminum oxide grows much faster than aluminum nitride in a nitrogen
R. Dolata, M. Neuhaus, W. Jutzi
openaire   +1 more source

Anomalous Proximity Effect in the Nb-BiSb-Nb Junctions

Physical Review Letters, 1996
An anomalous proximity effect was observed in coplanar Nb-BiSb-Nb junctions. The effect consists of a considerable increase of the critical current with an increase in the distance between the superconducting electrodes. The effect is explained by the quantum character of Cooper pair transport through the normal region.
, Kasumov, , Kononenko, , Matveev, , Borsenko, , Tulin, , Vdovin, , Khodos   +6 more
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Overdamped Nb∕Al–AlOx∕Nb Josephson junctions

Applied Physics Letters, 2005
We report the fabrication and characterization of overdamped Nb∕Al–AlOx∕Nb superconductor–insulator–superconductor Josephson junction whose fabrication process derives from that of the well-known hysteretic junctions. These junctions are an intermediate state between the superconductor–normal metal–superconductor and the superconductor–insulator ...
Vincenzo Lacquaniti, Chiara Cagliero, Sabino Maggi, Raffaella Steni   +3 more
openaire   +2 more sources

Microstructures of Nb−26Ti-48Al + (Nb, Ti)B

Materials Science and Engineering: A, 1992
Abstract The microstructures of Nb–26at.%Ti–48at.%Al + 10vol.%(Nb0.67,Ti0.33)B prior to and after creep testing were studied by transmission electron microscopy. The matrix of this alloy exhibits a γ + σtwo-phase structure. The axis of an (Nb0.67,Ti0.33)B whisker was [010] which was found to be parallel to 〈011〉γ. Twins and 1/2[110] dislocations were
C.R. Feng, D.J. Michel
openaire   +1 more source

Electronic properties of Nb and H-treated Nb surfaces

Physical Review B, 1987
Clean Nb and H-treated Nb surfaces are studied using angle-resolved photoemission. Intrinsic surface states and hydrogen-induced states are characterized along the \ensuremath{\Gamma}\ifmmode\bar\else\textasciimacron\fi{}--X\ifmmode\bar\else\textasciimacron\fi{} direction of the two-dimensional Brillouin zone. Hydrogen-induced states exhibit reversible
, Fang, , Ballentine, , Erskine
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Hydrogen in Nb and Nb/Ti/Nb Thin Films*

Zeitschrift für Physikalische Chemie, 1993
J. Steiger, S. Blásser, O. Boebel, J. Erxmeyer, B. Mertesacker, A. Weidinger   +5 more
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Volunteers and the NBS

Science, 1994
T L, Root, P, Alpert
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The solid solubility of nitrogen in Nb and Nbrich NbHf, NbMo and NbW alloys

Journal of the Less Common Metals, 1967
A Taylor, N.J Doyle
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2014
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