Zobrazeno 1 - 10
of 341
pro vyhledávání: '"Braccini V."'
Autor:
Piperno, L., Vannozzi, A., Rizzo, F., Masi, A., Rufoloni, A., Celentano, G., Braccini, V., Cialone, M., Iebole, M., Martinelli, A., Savio, L., Putti, M., Meledin, A., Sotgiu, G.
Publikováno v:
In iScience 18 October 2024 27(10)
In this work we investigate the effect of each different heat treatment stage in the fabrication of Bi2Sr2CaCu2O8+d superconducting wires on intra-grain and inter-grain superconducting properties. We measure magnetic critical temperature Tc values an
Externí odkaz:
http://arxiv.org/abs/1707.02891
Autor:
Nappi, C., Camerlingo, C., Enrico, E., Bellingeri, E., Braccini, V., Ferdeghini, C., Sarnelli, E.
We study the current-voltage characteristics of Fe(Se,Te) thin films deposited on CaF$_2$ substrates in form of nanostrips (width $w\sim\lambda$, $\lambda$ the London penetration length). In view of a possible application of these materials to superc
Externí odkaz:
http://arxiv.org/abs/1610.00437
Autor:
Braccini, V., Kawale, S., Reich, E., Bellingeri, E., Pellegrino, L., Sala, A., Putti, M., Higashikawa, K., Kiss, T., Holzapfel, B., Ferdeghini, C.
We report on the isotropic pinning obtained in epitaxial Fe(Se,Te) thin films grown on CaF2 (001) substrate. High critical current density values larger than 1 MA/cm2 in self field in liquid helium are reached together with a very weak dependence on
Externí odkaz:
http://arxiv.org/abs/1309.1044
Autor:
Palenzona, A., Sala, A., Bernini, C., Braccini, V., Cimberle, M. R., Ferdeghini, C., Lamura, G., Martinelli, A., Pallecchi, I., Romano, G., Tropeano, M., Fittipaldi, R., Vecchione, A., Polyanskii, A., Kametani, F., Putti, M.
Publikováno v:
Supercond. Sci. Technol. 25 115018 2012
A novel method to prepare bulk Fe(Se0.5Te0.5) samples is presented, based on a melting process and a subsequent annealing treatment. With respect to the standard sintering technique, it produces much more homogeneous and denser samples, characterized
Externí odkaz:
http://arxiv.org/abs/1205.3618
REBa$_{2}$Cu$_{3}$O$_{x}$ films can achieve remarkably high critical current density values by the incorporation of insulating nanoparticles. A particular interesting case concerns BaZrO$_{3}$ (BZO) nanorods, whose strongly correlated effect is seen
Externí odkaz:
http://arxiv.org/abs/1111.1268
Autor:
Braccini, V, Xu, A, Jaroszynski, J, Xin, Y, Larbalestier, D C, Chen, Y, Carota, G, Dackow, J, Kesgin, I, Yao, Y, Guevara, A, Shi, T, Selvamanickam, V
BaZrO3 (BZO) nanorods are now incorporated into production IBAD-MOCVD coated conductors. Here we compare several examples of both BZO-free and BZO-containing coated conductors using critical current (Ic) characterizations at 4.2 K over their full ang
Externí odkaz:
http://arxiv.org/abs/1011.1465
The MgB2 superconductor has already demonstrated its applicative potential, in particular for DC applications such as MRI magnets, thanks to the low costs of the raw materials and to its simple production process. However further efforts have still t
Externí odkaz:
http://arxiv.org/abs/0911.3000
Autor:
Malagoli, A., Braccini, V., Tropeano, M., Vignolo, M., Bernini, C., Fanciulli, C., Romano, G., Putti, M., Ferdeghini, C., Mossang, E., Polyanskii, A., Larbalestier, D. C.
Ex-situ Powder-In-Tube MgB2 tapes prepared with ball-milled, undoped powders showed a strong enhancement of the irreversibility field H*, the upper critical field Hc2 and the critical current density Jc(H) together with the suppression of the anisotr
Externí odkaz:
http://arxiv.org/abs/0807.4078
Autor:
Malagoli, A, Tropeano, M, Cubeda, V, Bernini, C, Braccini, V, Fanciulli, C, Romano, G, Putti, M, Ferdeghini, C
In DC and AC practical applications of MgB2 superconducting wires an important role is represented by the material sheath which has to provide, among other things, a suitable electrical and thermal stabilization. A way to obtain a large enough amount
Externí odkaz:
http://arxiv.org/abs/0807.3259