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arXiv · 2308.00714

Superconducting Polycrystalline Rhenium Films Deposited at Room Temperature

Serafim Teknowijoyo·Armen Gulian
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Abstract

We report on magnetron deposition of thin superconducting rhenium films on sapphire substrates. During the deposition, substrates were held at ambient temperature. Critical temperature of the films is Tc~3.6 K. Films have polycrystalline structure, and grazing incidence X-ray diffractometry indicates that crystalline lattice parameters are somewhat larger compared to the bulk ones. Magnetoresistive and AC/DC susceptibilities allowed us to determine $H_{c1}$ and $H_{c2}$ of these films, as well as estimate coherence length $\xi$(0) and magnetic penetration depth $\lambda_L$(0). We also provide information on surface morphology of these films.

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Serafim Teknowijoyo, Armen Gulian. 2023-07-31. Superconducting Polycrystalline Rhenium Films Deposited at Room Temperature. https://doi.org/10.3103/s1060992x23070184

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