Intrinsic Josephson junction characteristics of Nd2-xCexCuO4/SrTiO3 epitaxial films
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866913525114339328 |
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| author | Charikova, T. B. Devyaterikov, D. I. Neverov, V. N. Popov, M. R. Shelushinina, N. G. Ivanov, A. A. |
| author_facet | Charikova, T. B. Devyaterikov, D. I. Neverov, V. N. Popov, M. R. Shelushinina, N. G. Ivanov, A. A. |
| contents | The current-voltage (I-V) properties along the c axis on Nd2-xCexCuO4 /SrTiO3 epitaxial films with x = 0.145, 0.15 were investigated. For all the samples it has been established that the I-V characteristics exhibit several resistive branches, which correspond to the resistive states of individual Josephson junctions. The results confirm the idea of a tunneling mechanism between the CuO2 layers (superconductor - insulator - superconductor junction) for the investigated Nd2-xCexCuO4 compound. The I-V dependence of this compound with x = 0.15 points out on the nonmonotonic nature of the d-wave or anisotropic s-wave symmetry order parameter associated with the coexistence of superconductivity and antiferromagnetic fluctuations. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2410_00488 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Intrinsic Josephson junction characteristics of Nd2-xCexCuO4/SrTiO3 epitaxial films Charikova, T. B. Devyaterikov, D. I. Neverov, V. N. Popov, M. R. Shelushinina, N. G. Ivanov, A. A. Superconductivity The current-voltage (I-V) properties along the c axis on Nd2-xCexCuO4 /SrTiO3 epitaxial films with x = 0.145, 0.15 were investigated. For all the samples it has been established that the I-V characteristics exhibit several resistive branches, which correspond to the resistive states of individual Josephson junctions. The results confirm the idea of a tunneling mechanism between the CuO2 layers (superconductor - insulator - superconductor junction) for the investigated Nd2-xCexCuO4 compound. The I-V dependence of this compound with x = 0.15 points out on the nonmonotonic nature of the d-wave or anisotropic s-wave symmetry order parameter associated with the coexistence of superconductivity and antiferromagnetic fluctuations. |
| title | Intrinsic Josephson junction characteristics of Nd2-xCexCuO4/SrTiO3 epitaxial films |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2410.00488 |