Transport properties of ZrN superconducting films

被引：43

作者：

Cassinese, A

Iavarone, M

Vaglio, R

Grimsditch, M

Uran, S

机构：

[1] Univ Naples, INFM, Dipartimento Sci Fis, I-80125 Naples, Italy

[2] Argonne Natl Lab, Div Sci Mat, Argonne, IL 60439 USA

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.62.13915

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Superconductivity in nitrides presents intriguing aspects related to the role of optical phonons. In the present paper we report on high-quality superconducting zirconium nitride film preparation and characterization (including Raman scattering) as well as on both de and microwave frequency transport properties, The high-temperature dc resistivity shows no evidence of saturation effects, possibly due to the low electron-phonon coupling. Surface impedance data can be well fitted by the standard BCS expressions. The data provide further evidence of the ''conventional'' nature of superconductivity in these compounds.

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页码：13915 / 13918

页数：4

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