Voltage Fluctuations below the critical current in a superconducting BSCCO thin film

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作者
Coccorese, C [1 ]
Jung, G
Savo, B
机构
[1] Univ Salerno, Dipartimento Fis, I-84081 Baronissi, SA, Italy
[2] Univ Salerno, INFM, I-84081 Baronissi, SA, Italy
[3] Ben Gurion Univ Negev, IL-84105 Beer Sheva, Israel
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O59 [应用物理学];
学科分类号
摘要
Random Telegraph voltage signals (RTVS) have been detected on a superconducting Bi2Sr2Ca1Cu2O8+x (BSCCO) thin film, current biased below the sample critical current I-c in a dissipationless state, at temperatures T < 7K and in a weak perpendicular magnetic field B. RTVS average lifetimes clearly show that voltage fluctuations are governed by an intrinsic energy barrier height linearly depending on B. This evidence supports the hypothesis of a magnetic origin of these phenomena.
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页码:17 / 20
页数:4
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