INTERACTING AND SELF-ORGANIZED 2-LEVEL STATES IN TUNNEL BARRIERS

被引：14

作者：

PESENSON, L ^{[1
]}

ROBERTAZZI, RP ^{[1
]}

BUHRMAN, RA ^{[1
]}

CYPHER, SR ^{[1
]}

HUNT, BD ^{[1
]}

机构：

[1] CALTECH,JET PROP LAB,PASADENA,CA 91109

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.67.2866

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The excess low-frequency 1/f noise and discrete two-level resistance fluctuations (TLFs) were studied in small-area NbN-MgO-NbN tunnel junctions with a high, low-temperature density of active defects. Strong and evolving interactions between large TLFs indicate that these fluctuations result from the self-organization of interacting defect elements. In the low-T tunneling regime, an unusual slowing down of the rates and a decrease in amplitude with increasing T is sometimes observed, indicative of a thermally induced change in the self-organized two-level state.

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收藏

页码：2866 / 2869

页数：4

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