Polycrystalline NbRe superconducting films deposited by direct current magnetron sputtering

C. Cirillo; M. Caputo; G. Divitini; J. W.A. Robinson; C. Attanasio

doi:10.1016/j.tsf.2022.139450

Polycrystalline NbRe superconducting films deposited by direct current magnetron sputtering

C. Cirillo^* (Corresponding Author), M. Caputo, G. Divitini, J. W.A. Robinson, C. Attanasio

^*Corresponding author for this work

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Abstract

Nb_0.18Re_0.82 superconducting thin films are deposited by direct current (dc) magnetron sputtering under different growth conditions. The resulting films are homogeneous and polycrystalline, with grains of small dimensions. The electrical transport measurements, which evidence that the samples are disordered superconductors, are interpreted in the framework of different theoretical models in order to find a correlation between the structural disorder and the superconducting properties. Implications of these results are discussed with respect to both fundamental and applicative research, considering the interest in the possible non-conventional order parameter due to the lack of inversion symmetry and the potential of NbRe-based devices as Superconducting Nanowire Single Photon Detectors.

Original language	English
Article number	139450
Journal	Thin Solid Films
Volume	758
DOIs	https://doi.org/10.1016/j.tsf.2022.139450
Publication status	Published - 30 Sept 2022
MoE publication type	A1 Journal article-refereed

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10.1016/j.tsf.2022.139450

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title = "Polycrystalline NbRe superconducting films deposited by direct current magnetron sputtering",

abstract = "Nb0.18Re0.82 superconducting thin films are deposited by direct current (dc) magnetron sputtering under different growth conditions. The resulting films are homogeneous and polycrystalline, with grains of small dimensions. The electrical transport measurements, which evidence that the samples are disordered superconductors, are interpreted in the framework of different theoretical models in order to find a correlation between the structural disorder and the superconducting properties. Implications of these results are discussed with respect to both fundamental and applicative research, considering the interest in the possible non-conventional order parameter due to the lack of inversion symmetry and the potential of NbRe-based devices as Superconducting Nanowire Single Photon Detectors.",

author = "C. Cirillo and M. Caputo and G. Divitini and Robinson, {J. W.A.} and C. Attanasio",

note = "Funding Information: The authors would like to thank M. Salvato for deriving the theoretical XRD pattern of the NbRe cell, A. Guarino for the support in the annealing process, and E. Ponticorvo for performing the EDX analysis on the annealed films. Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

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doi = "10.1016/j.tsf.2022.139450",

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T1 - Polycrystalline NbRe superconducting films deposited by direct current magnetron sputtering

AU - Cirillo, C.

AU - Caputo, M.

AU - Divitini, G.

AU - Robinson, J. W.A.

AU - Attanasio, C.

N1 - Funding Information: The authors would like to thank M. Salvato for deriving the theoretical XRD pattern of the NbRe cell, A. Guarino for the support in the annealing process, and E. Ponticorvo for performing the EDX analysis on the annealed films. Publisher Copyright: © 2022 Elsevier B.V.

PY - 2022/9/30

Y1 - 2022/9/30

N2 - Nb0.18Re0.82 superconducting thin films are deposited by direct current (dc) magnetron sputtering under different growth conditions. The resulting films are homogeneous and polycrystalline, with grains of small dimensions. The electrical transport measurements, which evidence that the samples are disordered superconductors, are interpreted in the framework of different theoretical models in order to find a correlation between the structural disorder and the superconducting properties. Implications of these results are discussed with respect to both fundamental and applicative research, considering the interest in the possible non-conventional order parameter due to the lack of inversion symmetry and the potential of NbRe-based devices as Superconducting Nanowire Single Photon Detectors.

AB - Nb0.18Re0.82 superconducting thin films are deposited by direct current (dc) magnetron sputtering under different growth conditions. The resulting films are homogeneous and polycrystalline, with grains of small dimensions. The electrical transport measurements, which evidence that the samples are disordered superconductors, are interpreted in the framework of different theoretical models in order to find a correlation between the structural disorder and the superconducting properties. Implications of these results are discussed with respect to both fundamental and applicative research, considering the interest in the possible non-conventional order parameter due to the lack of inversion symmetry and the potential of NbRe-based devices as Superconducting Nanowire Single Photon Detectors.

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U2 - 10.1016/j.tsf.2022.139450

DO - 10.1016/j.tsf.2022.139450

M3 - Article

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SN - 0040-6090

VL - 758

JO - Thin Solid Films

JF - Thin Solid Films

M1 - 139450

ER -

Polycrystalline NbRe superconducting films deposited by direct current magnetron sputtering

Abstract

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