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	Superconductivity induced changes of the characteristics of YBa/sub 2/Cu/sub 3/O/sub 7- delta //Nb doped SrTiO/sub 3/ heterojunction
	Zhang, H.J. ; Zhang, X.P. ; Shi, J.P. ; Zhao, Y.G.
	2010-05-06 ; 2010-05-06
关键词	Experimental/ barium compounds high-temperature superconductors niobium rectification strontium compounds superconducting transitions yttrium compounds/ superconductivity rectifying property current-voltage characteristics superconductor heterojunctions YBa/sub 2/Cu/sub 3/O/sub 7/-SrTiO/sub 3/:Nb/ A7430F Transport properties of superconductors A7470V Perovskite phase superconductors A7410 Superconducting critical temperature, occurrence A7340E Rectification at interfaces/ YBa2Cu3O7-SrTiO3:Nb/int SrTiO3:Nb/int YBa2Cu3O7/int SrTiO3/int TiO3/int Cu3/int Ba2/int O7/int O3/int Ba/int Cu/int Nb/int Sr/int Ti/int O/int Y/int SrTiO3:Nb/ss YBa2Cu3O7/ss SrTiO3/ss TiO3/ss Cu3/ss Ba2/ss O7/ss O3/ss Ba/ss Cu/ss Nb/ss Sr/ss Ti/ss O/ss Y/ss Nb/el Nb/dop
中文摘要	We report the effect of superconductivity on the characteristics of a YBa/sub 2/Cu/sub 3/O/sub 7- delta //Nb-doped SrTiO/sub 3/ heterojunction. This junction shows a good rectifying property in the current-voltage ( I - V ) characteristics. With the superconducting transition, the temperature dependence of the junction resistance shows a decrease and the diffusion voltage has a flat step. The capacitance and loss of the junction show jumps at the superconducting transition temperature ( T/sub c/ ) and these jumps can be suppressed by a magnetic field. In addition, with an increase in the measuring frequency, the capacitance of the junction decreases and the capacitance jumps at the T c increase. Analysis of the I - V curves suggests the existence of inhomogeneity in the heterojunction, which can account for the effect of superconductivity on the characteristics of the heterojunction. This work is helpful in understanding the effect of superconductivity on the characteristics of superconductor heterojunctions.
语种	英语 ; 英语
出版者	IOP Publishing Ltd. ; UK
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/14801]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, H.J.,Zhang, X.P.,Shi, J.P.,et al. Superconductivity induced changes of the characteristics of YBa/sub 2/Cu/sub 3/O/sub 7- delta //Nb doped SrTiO/sub 3/ heterojunction[J],2010, 2010.
APA	Zhang, H.J.,Zhang, X.P.,Shi, J.P.,&Zhao, Y.G..(2010).Superconductivity induced changes of the characteristics of YBa/sub 2/Cu/sub 3/O/sub 7- delta //Nb doped SrTiO/sub 3/ heterojunction..
MLA	Zhang, H.J.,et al."Superconductivity induced changes of the characteristics of YBa/sub 2/Cu/sub 3/O/sub 7- delta //Nb doped SrTiO/sub 3/ heterojunction".(2010).

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