Vortex instability and time effects in I-V curves of superconducting Y1Ba2Cu3O7-delta
Yükleniyor...
Dosyalar
Tarih
2003
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Inst Physics
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We have investigated the effect of the current sweep rate (CSR) on the vortex dynamics in a superconducting bulk sample of Y1Ba2Cu3O7-delta. It has been found that the CSR has several effects on vortex motion in that it gives rise to enhancement of dissipation as the CSR decreases, significant time effects and instabilities in current-voltage (I-V) curves. Those anomalies are discussed in terms of depinning/pinning together with disorder in the coupling strength between the superconducting grains. In addition, for a given field and temperature domain, it is shown that the CSR together and a relevant current scale is of importance in the evolution of I-V curves.
Açıklama
Anahtar Kelimeler
Superconducting, Vortex Instability and Time Effects
Kaynak
Journal Of Applied Physics
WoS Q Değeri
Q1
Scopus Q Değeri
Q2
Cilt
93
Sayı
1
