Thermoelectric power and thermal conductivity study of the Y3Ba5Cu8Ox system
Küçük Resim Yok
Tarih
2012
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the present study, the effect of heat treatment conditions on the structural/microstructural, electrical and transport properties, such as thermoelectric power and thermal conductivity, of the Y-358 system was investigated. The Y-123 phase instead of Y-358 were obtained with heat treatments. XRD and SEM analyses showed that the best structural formation was obtained for the sample prepared at 900 degrees C for 24 h. All the samples exhibited the T-c value around 91 K. Positive S(T) value was obtained in all the samples. S(T) data was analyzed by Two band model with linear T-term. In thermal conductivity of the samples, small peak with broad maximum was found just below T-c, unlike that of the HTc cuprates. (c) 2012 Elsevier B.V. All rights reserved.
Açıklama
7th International Workshop on Positron Studies of Defects (PSD) -- AUG 28-SEP 02, 2011 -- Delft Univ Technol, Delft, NETHERLANDS
Anahtar Kelimeler
Cuprate superconductors, Transport properties
Kaynak
Physica B-Condensed Matter
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
407
Sayı
14
