Study of the semiconducting behavior in zr-doped Bi1.95Sr1.65La0.4CuO6+& delta; ceramic cuprates
Yükleniyor...
Dosyalar
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The effect of zirconium substitution on copper sites in ceramic cuprates of the Bi1.95Sr1.65La0.4Cu1-xZrxO6+& delta; system, where x = 0.0, 0.2, and 0.4, on the structural and superconducting properties has been examined. Undoped and Zr-doped samples were synthesized using the traditional solid-state reaction technique. The x-ray diffraction analysis showed that the phase in the undoped sample is recognized as the Raveau phase, also known as a phase R-2201 superconductor, whereas it totally transforms to phase I, also known as a phase I-2201 semiconductor, in the Zr-doped samples. Electrical resistivity measurements using the four-probe method show a superconductor state in the undoped sample below T-C,T-Onset = 35 K. In the Zr-doped samples, the results demonstrate that superconductivity is suppressed, and a semi-conducting behavior is shown. The loss of superconductivity in the system may be attributed to the excess oxygen intercalation in the Bi-O double layers and to the localization of the charge carriers. The transport process in the Zr-doped samples is followed by a two-dimensional variable range hopping conduction.
Açıklama
Anahtar Kelimeler
Bi-2201 Phase, Carrier Localization, Superconductivity, Semiconducting Behavior, 2D-VRH Mechanism, BSCCO System
Kaynak
Journal of Electronic Materials
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
52
Sayı
Künye
Boudjaoui, S., Mahamdioua, N., & Altintas, S. P. (2023). Study of the Semiconducting Behavior in Zr-Doped Bi1. 95Sr1. 65La0. 4CuO6+ δ Ceramic Cuprates. Journal of Electronic Materials, 1-7.
