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首页> 外文期刊>Physica, C. Superconductivity and its applications >PROXIMITY AND JOSEPHSON EFFECTS IN SUPERCONDUCTOR TWO-DIMENSIONAL ELECTRON GAS PLANAR JUNCTIONS
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PROXIMITY AND JOSEPHSON EFFECTS IN SUPERCONDUCTOR TWO-DIMENSIONAL ELECTRON GAS PLANAR JUNCTIONS

机译:超导体二维电子气体平面结的接近度和约瑟夫森效应

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摘要

The DC Josephson effect is theoretically studied in a planar junction in which a two-dimensional electron gas (2DEG) infinite in lateral directions is in contact with two superconducting electrodes placed on top of the 2DEG. An energy gap in the excitation spectrum is created in the 2DEG due to the proximity effect. It is shown that under certain conditions, the region of the 2DEG underneath the superconductors is analogous to a superconducting region with an order parameter epsilon(g) exp(i phi), where epsilon(g) (epsilon(g)
机译:理论上,在平面结中研究了直流约瑟夫森效应,其中平面无限大的二维电子气(2DEG)与放置在2DEG顶部的两个超导电极接触。由于接近效应,在2DEG中产生了激发光谱中的能隙。结果表明,在某些条件下,超导体下方2DEG的区域类似于具有序数参数epsilon(g)exp(i phi)的超导区域,其中epsilon(g)(epsilon(g)

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