会议论文详细信息
11th European Conference on Applied Superconductivity
Influence of d-wave pairing on electrical properties of d0-d0 submicron YBa2Cu3O7?x bicrystal grain boundary junctions
Sarnelli, E.^1,2 ; Adamo, M.^1,2 ; De Nicola, S.^2 ; Cibella, S.^3 ; Leoni, R.^3 ; Nappi, C.^1,2
Istituto di Cibernetica E. Caianiello CNR, Pozzuoli, Italy^1
Istituto SPIN CNR, Napoli, Italy^2
Istituto di Fotonica e Nanotecnologie CNR, Rome, Italy^3
关键词: Arbitrary orientation;    Bicrystal grain boundary;    Bicrystal substrates;    Electrical transport;    Grain boundary junctions;    Layered superconductor;    Order parameter;    Temperature dependence;   
Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/507/4/042036/pdf
DOI  :  10.1088/1742-6596/507/4/042036
来源: IOP
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【 摘 要 】

We have fabricated submicron YBa2Cu3O7-xgrain boundary junctions using [100] tilt bicrystal substrates. In these substrates, crystal planes are tilted around the b-axis, parallel to the bicrystal line. We have obtained high-quality junctions and fitted experimental data using a recently theory accounting for d-wave symmetry of the order parameter in layered superconductors with arbitrary orientation. In our experiment, sensitive to the amplitude of the pairing state, lobes of different signs do not influence the electrical transport in the junction. Nevertheless, the effects of a non-conventional symmetry are clearly observed on the temperature dependence of the critical current.

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