Pregled bibliografske jedinice broj: 737409
Critical currents and differential resistance of YBA2CU3O7-X superconducting ceramics
Critical currents and differential resistance of YBA2CU3O7-X superconducting ceramics // Solid state communications, 72 (1989), 8; 753-757 doi:10.1016/0038-1098(89)90902-2 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 737409 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Critical currents and differential resistance of
YBA2CU3O7-X superconducting ceramics
Autori
Babić, Emil ; Prester, Mladen ; Marohnić, Željko ; Car, Tihomir ; Biškup, Neven ; Siddiqui, S. A.
Izvornik
Solid state communications (0038-1098) 72
(1989), 8;
753-757
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
superconducting ceramics ; critical currents
Sažetak
Transport critical current density (Jc) and differential resistance of several YBaCuO samples have been measured in the temperature range 77–91K and in the weak magnetic fields (H⩽ 150 Oe). At all fields and temperatures Rf exhibits a S-shape variation with current. For the well-prepared low- resitivity samples Rf reaches in the linear V-I regime a value of 0.15Rn, Rn being the normal resistance just above the transition, consistent with picture of the decoupled superconducting grains. Because of self-field effects, J obtained from transport (and magnetization) measurements does not provide useful information on the nature of intergrain coupling. The distributions of critical currents (d2V/dl2 vs. I) seem to rule out larger enhancement of Jc in sintered samples.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Ustanove:
Institut za fiziku, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
