Homogeneous superconducting phase in TiN film: A complex impedance study

被引：11

作者：

Diener, P. ^{[1
]}

Schellevis, H. ^{[2
]}

Baselmans, J. J. A. ^{[1
]}

机构：

[1] SRON Netherlands Inst Space Res, NL-3584 CA Utrecht, Netherlands

[2] Delft Univ Technol, Delft Inst Microsyst & Nanoelect, NL-2628 CD Delft, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 25期

关键词：

MAGNETIC-FIELD; INSULATOR TRANSITION; INTERFACES;

D O I：

10.1063/1.4771995

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The low frequency complex impedance of a high resistivity 92 mu Omega cm and 100 nm thick TiN superconducting film has been measured via the transmission of several high sensitivity GHz microresonators, down to T-C/50. The temperature dependence of the kinetic inductance follows closely BCS local electrodynamics, with one well defined superconducting gap. This evidences the recovery of a homogeneous superconducting phase in TiN far from the disorder and composition driven transitions. Additionally, we observe a linearity between resonator quality factor and frequency temperature changes, which can be described by a two fluid model. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4771995]

引用

页数：4

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