Napredna pretraga

Pregled bibliografske jedinice broj: 844

Two-dimensional decoherence effects in superconducting sheets of single crystal Bi_2Sr_2CaCu_2O_8+x


Babić, Dinko; Ivkov, Jovica; Leontić, Boran
Two-dimensional decoherence effects in superconducting sheets of single crystal Bi_2Sr_2CaCu_2O_8+x // Physica C, 277 (1997), 3-4; 203-212 doi:10.1016/S0921-4534(97)00070-1 (međunarodna recenzija, članak, znanstveni)


Naslov
Two-dimensional decoherence effects in superconducting sheets of single crystal Bi_2Sr_2CaCu_2O_8+x

Autori
Babić, Dinko ; Ivkov, Jovica ; Leontić, Boran

Izvornik
Physica C (0921-4534) 277 (1997), 3-4; 203-212

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Magnetoresistance; fluctuation effects; pair breaking

Sažetak
We quantitatively analyze ohmic magnetoresistance of a Bi2Sr2CaCu2O8+x Single crystal in the temperature range 40 K less than or equal to T less than or equal to 76 K and in magnetic fields up to 0.8 T, with an emphasis on the non-Arrhenius high-resistivity data. The unusual field dependence of the magnetoresistance at high resistivities is shown to follow a behaviour which is characteristic for decoherence effects in two-dimensional systems. We give semiquantitative arguments which relate the observed behaviour to the magnetic-field-induced breaking of non-dissipative quasiparticle pairs occurring in the mixed state within the isolated double CuO2 sheets. These arguments generalize the approach to the quantum decoherence phenomena, originally developed for T >T-c to T <T-c.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
00350104
119203

Ustanove
Institut za fiziku, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati