Superconducting Polycrystalline Rhenium Films Deposited at Room Temperature

IF 1 Q4 OPTICS

Optical Memory and Neural Networks Pub Date : 2024-01-30 DOI:10.3103/s1060992x23070184

S. Teknowijoyo, A. Gulian

引用次数: 0

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 T_c ~ 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 ξ(0) and magnetic penetration depth λ_L(0). We also provide information on surface morphology of these films.

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室温沉积的超导多晶铼薄膜

摘要我们报告了在蓝宝石衬底上磁控沉积超导铼薄膜的情况。沉积过程中，衬底保持在环境温度下。薄膜具有多晶体结构，掠入射 X 射线衍射仪表明，晶格参数比块体参数大一些。通过磁阻和交流/直流电感，我们确定了这些薄膜的 Hc1 和 Hc2，并估算了相干长度 ξ(0) 和磁穿透深度 λL(0)。我们还提供了有关这些薄膜表面形态的信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical Memory and Neural Networks OPTICS-

CiteScore

1.50

自引率

11.10%

发文量

期刊介绍： The journal covers a wide range of issues in information optics such as optical memory, mechanisms for optical data recording and processing, photosensitive materials, optical, optoelectronic and holographic nanostructures, and many other related topics. Papers on memory systems using holographic and biological structures and concepts of brain operation are also included. The journal pays particular attention to research in the field of neural net systems that may lead to a new generation of computional technologies by endowing them with intelligence.