Size Dependent Properties of the Intrinsic Josephson Junction in Bi-Sr-Ca-Cu-O Single Crystals in External Magnetic Fields(<特集>Special Issue on Superconductive Electronics)

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概要

• 論文の詳細を見る

• The size dependent properties of the intrinsic Josephson junctions in Bi_2Sr_2CaCu_2O_y single crystal mesas in the external magnetic field are studied. The mesas of (1-140) μm long with 7-29 junctions were fabricated and their current- voltage characteristics were measured in external magnetic field applied parallel to the CuO_2 layers up to 0.16 T. In zero magnetic field, multiple resistive branches with large hysteresis were observed in the current-voltage characteristics for the fabricated mesas. Almost identical critical currents were also observed for all the junctions in each mesa. With applied magnetic field, I_c of the longer mesas showed a complex magnetic field dependence as compared to that of the short mesas (of about 1 μm in length). It was observed that the lower critical magnetic field of the junctions decreased and approached a constant value with increas- ing number of junctions and also with increasing length of the junctions. Similar magnetic behavior was obtained by numerical simulations based on coupled sine-Gordon equations for such stacked junctions.

• 社団法人電子情報通信学会の論文
• 2002-03-01

著者

• IRIE Akinobu

  Department of Electronics, Nagaoka University of Technology

• Irie Akinobu

  Department Of Electrical And Electronic Engineering Faculty Of Engineering Utsunomiya University

• Irie Akinobu

  Department Of Electrical And Electronic Engineering Utsunomiya University:crest Japan Science And Te

• Oya Gin-ichiro

  Department Of Electrical And Electronic Engineering Faculty Of Engineering Utsunomiya University

• Oya Gin-ichiro

  Department Of Electrical And Electronic Engineering Utsunomiya University:crest Japan Science And Te

• ALI Nazia

  Department of Energy and Environmental Science, Utsunomiya University

• Ali N

  Department Of Energy And Environmental Science Utsunomiya University

• Ali Nazia

  Department Of Applied Physics And Electronics Dhaka University

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