Interlayer tunneling spectroscopy of mixed-phase BSCCO superconducting whiskers
Küçük Resim Yok
Tarih
2016
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Iop Publishing Ltd
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this work, we present a study on the interlayer tunneling spectroscopy (ITS) of mixed-phase BiSrCaCuO (BSCCO) superconducting whiskers. The tunneling experiments were carried out on the artificial cross-whisker (twist angle of 90 degrees) junctions. A multiple superconducting energy gap in the cross-whisker junctions was observed, which is attributed to the presence of different doping levels of two Bi2Sr2CaCu2O8+delta phases (Bi-2212), rather than two different phases, in the BSCCO whiskers, namely Bi2Sr2CaCu2O8+delta and Bi2Sr2Ca2Cu3O8+delta (Bi-2212 and Bi-2223). The temperature dependence of the energy gaps was discussed in the framework of the BCS T-dependence. On the other hand, the carrier concentration of the cross-whisker junction was changed by the carrier injection process. The effects of the carrier injection on the critical current, I-c, and the ITS of intrinsic Josephson junctions were investigated in details.
Açıklama
Anahtar Kelimeler
intrinsic Josephson junction, carrier injection, cross-whisker junction, super-conductivity, THz emission
Kaynak
Superconductor Science & Technology
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
29
Sayı
6
