Observation of a superconducting glass state in granular superconducting diamond

G M Klemencic; J M Fellows; J M Werrell; S Mandal; S R Giblin; R A Smith; O A Williams

doi:10.1038/s41598-019-40306-1

Observation of a superconducting glass state in granular superconducting diamond

G M Klemencic, J M Fellows, J M Werrell, S Mandal, S R Giblin, R A Smith, O A Williams

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

2 Citations (Scopus)

288 Downloads (Pure)

Abstract

The magnetic field dependence of the superconductivity in nanocrystalline boron doped diamond thin films is reported. Evidence of a superconducting glass state is presented, as demonstrated by the observation of a quasi de Almeida-Thouless line in the phase diagram and a logarithmic time dependence of the magnetism. The position of the phase boundary in the H-T plane is determined from electrical transport data by detailed fitting to quasi-zero-dimensional fluctuation conductivity theory. This allows determination of the boundary between resistive and non-resistive behaviour to be made with greater precision than the standard ad hoc onset/midpoint/offset criterion. We attribute the glassy superconductivity to the morphological granularity of the diamond films.

Original language	English
Article number	4578
Number of pages	8
Journal	Scientific Reports
Volume	9
Issue number	1
DOIs	https://doi.org/10.1038/s41598-019-40306-1
Publication status	Published - 14 Mar 2019

Access to Document

10.1038/s41598-019-40306-1

Full-text PDF (final published version)
This is the final published version of the article (version of record). It first appeared online via Nature at https://doi.org/10.1038/s41598-019-40306-1 . Please refer to any applicable terms of use of the publisher.
Final published version, 1.2 MBLicence: CC BY

Handle.net

Persistent link

Cite this

@article{325e3124870c488b88ad2ea7a6bf23fc,

title = "Observation of a superconducting glass state in granular superconducting diamond",

abstract = "The magnetic field dependence of the superconductivity in nanocrystalline boron doped diamond thin films is reported. Evidence of a superconducting glass state is presented, as demonstrated by the observation of a quasi de Almeida-Thouless line in the phase diagram and a logarithmic time dependence of the magnetism. The position of the phase boundary in the H-T plane is determined from electrical transport data by detailed fitting to quasi-zero-dimensional fluctuation conductivity theory. This allows determination of the boundary between resistive and non-resistive behaviour to be made with greater precision than the standard ad hoc onset/midpoint/offset criterion. We attribute the glassy superconductivity to the morphological granularity of the diamond films.",

author = "Klemencic, {G M} and Fellows, {J M} and Werrell, {J M} and S Mandal and Giblin, {S R} and Smith, {R A} and Williams, {O A}",

year = "2019",

month = mar,

day = "14",

doi = "10.1038/s41598-019-40306-1",

language = "English",

volume = "9",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Springer Nature",

number = "1",

}

TY - JOUR

T1 - Observation of a superconducting glass state in granular superconducting diamond

AU - Klemencic, G M

AU - Fellows, J M

AU - Werrell, J M

AU - Mandal, S

AU - Giblin, S R

AU - Smith, R A

AU - Williams, O A

PY - 2019/3/14

Y1 - 2019/3/14

N2 - The magnetic field dependence of the superconductivity in nanocrystalline boron doped diamond thin films is reported. Evidence of a superconducting glass state is presented, as demonstrated by the observation of a quasi de Almeida-Thouless line in the phase diagram and a logarithmic time dependence of the magnetism. The position of the phase boundary in the H-T plane is determined from electrical transport data by detailed fitting to quasi-zero-dimensional fluctuation conductivity theory. This allows determination of the boundary between resistive and non-resistive behaviour to be made with greater precision than the standard ad hoc onset/midpoint/offset criterion. We attribute the glassy superconductivity to the morphological granularity of the diamond films.

AB - The magnetic field dependence of the superconductivity in nanocrystalline boron doped diamond thin films is reported. Evidence of a superconducting glass state is presented, as demonstrated by the observation of a quasi de Almeida-Thouless line in the phase diagram and a logarithmic time dependence of the magnetism. The position of the phase boundary in the H-T plane is determined from electrical transport data by detailed fitting to quasi-zero-dimensional fluctuation conductivity theory. This allows determination of the boundary between resistive and non-resistive behaviour to be made with greater precision than the standard ad hoc onset/midpoint/offset criterion. We attribute the glassy superconductivity to the morphological granularity of the diamond films.

UR - http://www.scopus.com/inward/record.url?scp=85062938085&partnerID=8YFLogxK

U2 - 10.1038/s41598-019-40306-1

DO - 10.1038/s41598-019-40306-1

M3 - Article (Academic Journal)

C2 - 30872614

SN - 2045-2322

VL - 9

JO - Scientific Reports

JF - Scientific Reports

IS - 1

M1 - 4578

ER -

Observation of a superconducting glass state in granular superconducting diamond

Abstract

Access to Document

Handle.net

Other files and links

Fingerprint

Cite this