Supercapacitance and superinductance of TiN and NbTiN films in the vicinity of superconductor-to-insulator transition

Abstract We investigate the low-temperature complex impedance of disordered insulating thin TiN and NbTiN films in the frequency region 400 Hz–1 MHz in close proximity to the superconductor–insulator transition (SIT). The frequency, temperature, and magnetic field dependencies of the real and imagin...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	A. Yu. Mironov, D. M. Silevitch, S. V. Postolova, M. V. Burdastyh, T. Proslier, T. I. Baturina, T. F. Rosenbaum, V. M. Vinokur
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9d90df2d8c4c464b8002f6ee09e50e1a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:9d90df2d8c4c464b8002f6ee09e50e1a
record_format	dspace
spelling	oai:doaj.org-article:9d90df2d8c4c464b8002f6ee09e50e1a2021-12-02T18:50:53ZSupercapacitance and superinductance of TiN and NbTiN films in the vicinity of superconductor-to-insulator transition10.1038/s41598-021-95530-52045-2322https://doaj.org/article/9d90df2d8c4c464b8002f6ee09e50e1a2021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95530-5https://doaj.org/toc/2045-2322Abstract We investigate the low-temperature complex impedance of disordered insulating thin TiN and NbTiN films in the frequency region 400 Hz–1 MHz in close proximity to the superconductor–insulator transition (SIT). The frequency, temperature, and magnetic field dependencies of the real and imaginary parts of the impedance indicate that in full accord with the theoretical predictions and earlier observations, the films acquire self-induced electronic granularity and become effectively random arrays of superconducting granules coupled via Josephson links. Accordingly, the inductive component of the response is due to superconducting droplets, while the capacitive component results from the effective Josephson junctions capacitances. The impedance crosses over from capacitive to inductive behavior as films go across the transition.A. Yu. MironovD. M. SilevitchS. V. PostolovaM. V. BurdastyhT. ProslierT. I. BaturinaT. F. RosenbaumV. M. VinokurNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q A. Yu. Mironov D. M. Silevitch S. V. Postolova M. V. Burdastyh T. Proslier T. I. Baturina T. F. Rosenbaum V. M. Vinokur Supercapacitance and superinductance of TiN and NbTiN films in the vicinity of superconductor-to-insulator transition
description	Abstract We investigate the low-temperature complex impedance of disordered insulating thin TiN and NbTiN films in the frequency region 400 Hz–1 MHz in close proximity to the superconductor–insulator transition (SIT). The frequency, temperature, and magnetic field dependencies of the real and imaginary parts of the impedance indicate that in full accord with the theoretical predictions and earlier observations, the films acquire self-induced electronic granularity and become effectively random arrays of superconducting granules coupled via Josephson links. Accordingly, the inductive component of the response is due to superconducting droplets, while the capacitive component results from the effective Josephson junctions capacitances. The impedance crosses over from capacitive to inductive behavior as films go across the transition.
format	article
author	A. Yu. Mironov D. M. Silevitch S. V. Postolova M. V. Burdastyh T. Proslier T. I. Baturina T. F. Rosenbaum V. M. Vinokur
author_facet	A. Yu. Mironov D. M. Silevitch S. V. Postolova M. V. Burdastyh T. Proslier T. I. Baturina T. F. Rosenbaum V. M. Vinokur
author_sort	A. Yu. Mironov
title	Supercapacitance and superinductance of TiN and NbTiN films in the vicinity of superconductor-to-insulator transition
title_short	Supercapacitance and superinductance of TiN and NbTiN films in the vicinity of superconductor-to-insulator transition
title_full	Supercapacitance and superinductance of TiN and NbTiN films in the vicinity of superconductor-to-insulator transition
title_fullStr	Supercapacitance and superinductance of TiN and NbTiN films in the vicinity of superconductor-to-insulator transition
title_full_unstemmed	Supercapacitance and superinductance of TiN and NbTiN films in the vicinity of superconductor-to-insulator transition
title_sort	supercapacitance and superinductance of tin and nbtin films in the vicinity of superconductor-to-insulator transition
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9d90df2d8c4c464b8002f6ee09e50e1a
work_keys_str_mv	AT ayumironov supercapacitanceandsuperinductanceoftinandnbtinfilmsinthevicinityofsuperconductortoinsulatortransition AT dmsilevitch supercapacitanceandsuperinductanceoftinandnbtinfilmsinthevicinityofsuperconductortoinsulatortransition AT svpostolova supercapacitanceandsuperinductanceoftinandnbtinfilmsinthevicinityofsuperconductortoinsulatortransition AT mvburdastyh supercapacitanceandsuperinductanceoftinandnbtinfilmsinthevicinityofsuperconductortoinsulatortransition AT tproslier supercapacitanceandsuperinductanceoftinandnbtinfilmsinthevicinityofsuperconductortoinsulatortransition AT tibaturina supercapacitanceandsuperinductanceoftinandnbtinfilmsinthevicinityofsuperconductortoinsulatortransition AT tfrosenbaum supercapacitanceandsuperinductanceoftinandnbtinfilmsinthevicinityofsuperconductortoinsulatortransition AT vmvinokur supercapacitanceandsuperinductanceoftinandnbtinfilmsinthevicinityofsuperconductortoinsulatortransition
_version_	1718377521062346752

Supercapacitance and superinductance of TiN and NbTiN films in the vicinity of superconductor-to-insulator transition

Ejemplares similares