Results 31 to 40 of about 6,016 (192)

Flux-pinning behaviors and mechanism according to dopant level in (Fe, Ti) particle-doped $$\text {MgB}_2$$ MgB 2 superconductor

Scientific Reports, 2021
We have studied flux-pinning effects of $$\text {MgB}_2$$ MgB 2 superconductor by doping (Fe, Ti) particles of which radius is 163 nm on average. 5 wt.% (Fe, Ti) doped $$\text {MgB}_2$$ MgB 2 among the specimens showed the best field dependence of ...
H. B. Lee, G. C. Kim, Young Jin Shon, Dongjin Kim, Y. C. Kim   +4 more
doaj   +1 more source

Very high upper critical fields in MgB2 produced by selective tuning of impurity scattering [PDF]

, 2003
We report a significant enhancement of the upper critical field $H_{c2}$ of different $MgB_2$ samples alloyed with nonmagnetic impurities. By studying films and bulk polycrystals with different resistivities $\rho$, we show a clear trend of $H_{c2 ...
A Gurevich, A Siri, Ando Y, Angst M, Belashchenko K D, Bouquet F, C B Eom, C Mielke, Canfield P C, Canfield P C, Cava R J, Chen X K, Cubitt R, D C Larbalestier, D M Kim, E E Hellstrom, Fietz W A, Flukiger R, Golubov A A, Grant P, Gurevich A, Iavarone M, J Giencke, J H Choi, K H Kim, Ketterson J B, Koshelev A E, L D Cooley, L J Belenky, Larbalestier D C, Liu A Y, M K Lee, Mazin I I, Orlando T P, Patnaik S, Perkins G K, Rowell J M, S D Bu, S Patnaik, Schmidt H, Sologubenko A V, Song X, V Braccini, W Tian, X Q Pan, X Song, Zehetmayer M   +46 more
core   +1 more source

Nonlinear microwave response of MgB2

, 2004
We calculate the intrinsic nonlinear microwave response of the two gap superconductor MgB2 in the clean and dirty limits. Due to the small value of the pi band gap, the nonlinear response at low temperatures is larger than for a single gap Bardeen-Cooper-
Booth, D. J. Scalapino, Jin, T. Dahm
core   +1 more source

An investigation to the elastic, electronic and optical properties od magnesium dibore (MgBr2) for future renewable energies application [PDF]

E3S Web of Conferences
In recent decades, Superconducting materials have the potential to revolutionize the production of energy, energy storage devices, and transport. However, apart from their medical applications in magnetic resonance imaging (MRI) and nuclear magnetic ...
Elmourabit Fahd, Essakali Yassine, Id Ouissaaden Fatima, Kamel Hamza, Dlimi Said   +4 more
doaj   +1 more source

Magnetic nanoparticles as efficient bulk pinning centers in type-II superconductors

, 2004
Enhancement of flux pinning by magnetic nanoparticles embedded into the bulk of type-2 superconductor is studied both theoretically and experimentally.
A. M. Campbell, Alexey Snezhko, C. C. Koch, D. Brochier, K. S. Suslick, K. S. Suslick, M. J. Van Bael, Ruslan Prozorov, Tanya Prozorov   +8 more
core   +1 more source

Effect graphite on magnesium diboride superconductivity synthesized by combustion method under argon pressure: Part II

Metalurgija, 2022
There are many various techniques to synthesize the superconductors based on magnesium diboride. In this paper, we attempted to obtain a superconducting magnesium diboride in a way by using a High-Temperature Centrifuge and investigated how a centrifugal
S. Tolendiuly, K. A. Alipbayev, S. M. Fomenko, A. Sovet, A. Zhauyt   +4 more
doaj  

Strong enhancement of Jc in binary and alloyed in-situ MgB2 wires by a new approach: Cold high pressure densification

, 2009
Cold high pressure densification (CHPD) is presented as a new way to substantially enhance the critical current density of in situ MgB2 wires at 4.2 and 20 K at fields between 5 and 14 T.
C Senatore, Collings E W, Eisterer M, Flükiger R Hossain M S A Senatore C, Flükiger R Senatore C Hossain M S A Zhang X Wang D Ma Y W, Hossain M S A, Hossain M S A, Lezza P, M S A Hossain, Ma Y W, Pan A V, Prikhna T A, R Flukiger, Rowell J M, Yamada H, Yamamoto A, Zhang X P   +16 more
core   +2 more sources

MgB2 tunnel junctions and 19 K low-noise dc superconducting quantum interference devices [PDF]

, 2001
Point contact junctions made from two pieces of MgB2 can be adjusted to exhibit either superconductor-insulator-superconductor (SIS) or superconductor-normal metal-superconductor (SNS) current-voltage characteristics.
D. G. Hinks, D. Kinion, G. W. Crabtree, J. Chen, John Clarke, Schmidt H., Y. Zhang   +6 more
core   +2 more sources

Terahertz Spectroscopy of Novel Superconductors

Advances in Condensed Matter Physics, 2011
Through the coupling of Synchrotron Radiation and Michelson interferometry, one may obtain in the terahertz (THz) range transmittance and reflectivity spectra with a signal-to-noise ratio (S/N) up to 103.
Stefano Lupi
doaj   +1 more source

Compressibility of the MgB2 Superconductor

, 2001
6 pages, 3 ...
Prassides, K., Iwasa, Y., Ito, T., Chi, D. H., Uehara, K., Nishibori, E., Takata, M., Sakata, S., Ohishi, Y., Shimomura, O., Muranaka, T., Akimitsu, J.   +11 more
openaire   +2 more sources