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首页> 外文期刊>Physica, C. Superconductivity and its applications >Interlayer tunneling of quasiparticles and Cooper pairs in Bi-2212 from experiments on small stacks
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Interlayer tunneling of quasiparticles and Cooper pairs in Bi-2212 from experiments on small stacks

机译：Bi-2212中小颗粒实验的准粒子和库珀对的层间隧穿

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The interlayer tunneling has been studied on high quality Bi-2212 stacks of micron to the submicron lateral size. We found that low temperature and low voltage tunneling I-V characteristics can be self-consistently described by Fermi-liquid model for a d-wave superconductor with a, significant contribution from coherent interlayer tunneling. For micron-sized stacks we found very clear Fraunhofer type dependence of critical current across the stack on parallel magnetic field with periodicity corresponding to one flux quantum per elementary junction. The gap and pseudogap interplay with variation of temperature and magnetic field has been extracted from the I-V characteristics. We consider also the role of charging effects for submicron stacks. (C) 2001 Elsevier Science B.V. All rights reserved. [References: 30]
机译：已经对微米至亚微米横向尺寸的高质量Bi-2212堆栈进行了层间隧穿研究。我们发现，低温和低压隧穿的I-V特性可以通过费米液体模型对d波超导体进行自洽描述，而相干层间隧穿的贡献很大。对于微米级的堆栈，我们发现跨堆栈的临界电流对平行磁场具有非常明显的弗劳恩霍夫类型依赖性，其周期性对应于每个基本结一个通量量子。从I-V特性中提取出了随着温度和磁场变化而产生的间隙和拟间隙相互作用。我们还考虑了亚微米电池堆的充电效应。 （C）2001 Elsevier Science B.V.保留所有权利。 [参考：30]

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