標題: Negative magnetoresistance, negative electroresistance, and metallic behavior on the insulating side of the two-dimensional superconductor-insulator transition in granular Pb films
作者: Barber, RP
Hsu, SY
Valles, JM
Dynes, RC
Glover, RE
電子物理學系
Department of Electrophysics
公開日期: 1-四月-2006
摘要: Granular Pb thin films on the insulating side of the two-dimensional superconductor-insulator transition are observed to exhibit a large negative magnetoresistance and electroresistance (change in resistance with electric field) at low temperatures. At high measurement voltages and low temperatures, the film resistances become temperature independent creating a "metallic" state. These phenomena are explained as manifestations of transport due to intergranular quasiparticle tunneling. This explanation might also provide insights into the similar behavior observed in other superconductors.
URI: http://dx.doi.org/10.1103/PhysRevB.73.134516
http://hdl.handle.net/11536/12397
ISSN: 1098-0121
DOI: 10.1103/PhysRevB.73.134516
期刊: PHYSICAL REVIEW B
Volume: 73
Issue: 13
結束頁: 
顯示於類別:期刊論文