Ultrahigh-inductance materials from spinodal decomposition
- URL: http://arxiv.org/abs/2111.05088v2
- Date: Thu, 23 Nov 2023 03:29:13 GMT
- Title: Ultrahigh-inductance materials from spinodal decomposition
- Authors: Ran Gao, Hsiang-Sheng Ku, Hao Deng, Wenlong Yu, Tian Xia, Feng Wu,
Zhijun Song, Xiaohe Miao, Chao Zhang, Yue Lin, Yaoyun Shi, Hui-Hai Zhao,
Chunqing Deng
- Abstract summary: Disordered superconducting nitrides with kinetic inductance have long been considered a leading material candidate for high-inductance quantum-circuit applications.
We propose a method to drastically increase the kinetic inductance of superconducting materials via spinodal decomposition while keeping a low microwave loss.
For the first time demonstrate the utilization of spinodal decomposition to trigger the insulator-to-superconductor transition with a drastically enhanced material disorder.
- Score: 30.5681951791708
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Disordered superconducting nitrides with kinetic inductance have long been
considered a leading material candidate for high-inductance quantum-circuit
applications. Despite continuing efforts in reducing material dimensions to
increase the kinetic inductance and the corresponding circuit impedance, it
becomes a fundamental challenge to improve further without compromising
material qualities. To this end, we propose a method to drastically increase
the kinetic inductance of superconducting materials via spinodal decomposition
while keeping a low microwave loss. We use epitaxial
Ti\textsubscript{0.48}Al\textsubscript{0.52}N as a model system, and for the
first time demonstrate the utilization of spinodal decomposition to trigger the
insulator-to-superconductor transition with a drastically enhanced material
disorder. The measured kinetic inductance has increased by 2-3 orders of
magnitude compared with all the best reported disordered superconducting
nitrides. Our work paves the way for substantially enhancing and
deterministically controlling the inductance for advanced superconducting
quantum circuits.
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