期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 883, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.160887
关键词
YBCO superconductor; Titanium dioxide; Nanowires; FC-ZFC magnetization; Activation energy; Pseudo-gap phenomenon
The article discusses the impact of adding one-dimensional titanium dioxide nanowires on the magnetization and electrical properties of YBCO bulk system. The nanowires were found to enhance flux pinning properties and affect the electrical and pseudo-gap analysis of the samples.
This article reports the role of adding one-dimensional titanium dioxide nanowires (TiO2-NWs, having 30 nm in diameter and some micrometers in length) on FC-ZFC magnetization, frequency-dependent AC susceptibility, and electrical measurements of the YBCO bulk system. The non-added (A0) and added TiO2-NWs samples (A1) were prepared by solid-state reaction route. TiO2-NWs did not affect the crystalline structure of YBCO. SEM examinations revealed that TiO2-NWs preferred to localize at the grain boundaries filling the pores existing between YBCO grains. FC-ZFC magnetization and frequency-dependent AC susceptibility analysis showed an enhancement of flux pinning properties with TiO2-NWs addition. TiO2-NWs addition affected also the electrical and pseudo-gap analysis of the samples. (C) 2021 Elsevier B.V. All rights reserved.
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