Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Gandikota, R"'
Publikováno v:
Indian Dermatology Online Journal, Vol 15, Iss 6, Pp 1053-1054 (2024)
Externí odkaz:
https://doaj.org/article/ab59e3eb1d7d4852b1c5394502a8538b
Autor:
Haritha, Kollipara1 (AUTHOR), Rao, Gandikota R.2 (AUTHOR) graghuramarao@gmail.com, Babu, Sudhir3 (AUTHOR)
Publikováno v:
Indian Dermatology Online Journal. Nov/Dec2024, Vol. 15 Issue 6, p1053-1054. 2p.
Oxygen was systematically incorporated in MBE grown MgB2 films using in-situ post-growth anneals in an oxygen environment. Connectivity analysis in combination with measurements of the critical temperature and resistivity indicate that oxygen is dist
Externí odkaz:
http://arxiv.org/abs/0809.2297
The amount of oxygen incorporated into MgB2 thin films upon exposure to atmospheric gasses is found to depend strongly on the material's stoichiometry. Rutherford backscattering spectroscopy was used to monitor changes in oxygen incorporation resulti
Externí odkaz:
http://arxiv.org/abs/0709.4007
Our Rutherford backscattering spectrometry (RBS) study has found that concentrations up to 7 atomic percent of Rb and Cs can be introduced to a depth of ~700 A in MgB2 thin films by annealing in quartz ampoules containing elemental alkali metals at <
Externí odkaz:
http://arxiv.org/abs/0709.4001
MgB2 tunnel junctions (MgB2/barrier/MgB2) were fabricated using a native oxide grown on the bottom MgB2 film as the tunnel barrier. Such barriers therefore survive the deposition of the second electrode at 300oC, even over junction areas of ~1 mm2. S
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604229
Publikováno v:
Indian Dermatology Online Journal, Vol 13, Iss 2, Pp 288-289 (2022)
Externí odkaz:
https://doaj.org/article/c086b3c3fcec4d798732e4df89513928
Autor:
Gandikota, R., Singh, R. K., Kim, J., Wilkens, B., Newman, N., Rowell, J. M., Pogrebnyakov, A. V., Xi, X. X., Redwing, J. M., Xu, S. Y., Li, Qi, Moeckly, B. H.
The effect of damage induced by 2-MeV alpha particles, followed by annealing, on the critical temperature (Tc), resistivity, and upper critical field (Hc2), of three MgB2 films made by different deposition processes has been studied. Damage creates a
Externí odkaz:
http://arxiv.org/abs/cond-mat/0503761
Effect of damage by 2-MeV He ions on the normal and superconducting properties of magnesium diboride
Autor:
Gandikota, R., Singh, R. K., Kim, J., Wilkens, B., Newman, N., Rowell, J. M., Pogrebnyakov, A. V., Xi, X. X., Redwing, J. M., Xu, S. Y., Li, Qi
We have studied the effect of damage induced by 2-MeV alpha particles on the critical temperature, Tc, and resistivity of MgB2 thin films. This technique allows defects to be controllably introduced into MgB2 in small successive steps. Tc decreases l
Externí odkaz:
http://arxiv.org/abs/cond-mat/0410655
Autor:
Braccini, V., Gurevich, A., Giencke, J. E., Jewell, M. C., Eom, C. B., Larbalestier, D. C., Pogrebnyakov, A., Cui, Y., Liu, B. T., Hu, Y. F., Redwing, J. M., Li, Qi, Xi, X. X., Singh, R. K., Gandikota, R., Kim, J., Wilkens, B., Newman, N., Rowell, J., Moeckly, B., Ferrando, V., Tarantini, C., Marre, D., Putti, M., Ferdeghini, C., Vaglio, R., Haanappel, E.
We investigated the effect of alloying on the upper critical field $H_{c2}$ in 12 $MgB_2$ films, in which disorder was introduced by growth, carbon doping or He-ion irradiation, finding a significant $H_{c2}$ enhancement in C-alloyed films, and an an
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402001