Superconductor-insulator transition driven by pressure-tuned intergrain coupling in nanodiamond films

G. Zhang, Yonghui Zhou, Svetlana Korneychuk, Tomas Samuely, Liwang Liu, Paul May, Zheng Xu, Oleksandr Onufriienko, Xuefeng Zhang, Johan Verbeeck, Peter Samuely, Victor Moshchalkov, Zhaorong Yang, Horst-Günter Rubahn

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Resumé

We report on the pressure-driven superconductor-insulator transition in heavily boron-doped nanodiamond films. By systematically increasing the pressure, we suppress the Josephson coupling between the superconducting nanodiamond grains. The diminished intergrain coupling gives rise to an overall insulating state in the films, which is interpreted in the framework of a parallel-series circuit model to be the result of bosonic insulators with preserved localized intragrain superconducting order parameters. Our investigation opens up perspectives for the application of high pressure in research on quantum confinement and coherence. Our data unveil the percolative nature of the electrical transport in nanodiamond films, and highlight the essential role of grain boundaries in determining the electronic properties of this material.
OriginalsprogEngelsk
Artikelnummer034801
TidsskriftPhysical Review Materials
Vol/bind3
Udgave nummer3
ISSN2475-9953
DOI
StatusUdgivet - 5. mar. 2019

Fingeraftryk

insulators
boron
grain boundaries
electronics

Citer dette

Zhang, G. ; Zhou, Yonghui ; Korneychuk, Svetlana ; Samuely, Tomas ; Liu, Liwang ; May, Paul ; Xu, Zheng ; Onufriienko, Oleksandr ; Zhang, Xuefeng ; Verbeeck, Johan ; Samuely, Peter ; Moshchalkov, Victor ; Yang, Zhaorong ; Rubahn, Horst-Günter. / Superconductor-insulator transition driven by pressure-tuned intergrain coupling in nanodiamond films. I: Physical Review Materials. 2019 ; Bind 3, Nr. 3.
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title = "Superconductor-insulator transition driven by pressure-tuned intergrain coupling in nanodiamond films",
abstract = "We report on the pressure-driven superconductor-insulator transition in heavily boron-doped nanodiamond films. By systematically increasing the pressure, we suppress the Josephson coupling between the superconducting nanodiamond grains. The diminished intergrain coupling gives rise to an overall insulating state in the films, which is interpreted in the framework of a parallel-series circuit model to be the result of bosonic insulators with preserved localized intragrain superconducting order parameters. Our investigation opens up perspectives for the application of high pressure in research on quantum confinement and coherence. Our data unveil the percolative nature of the electrical transport in nanodiamond films, and highlight the essential role of grain boundaries in determining the electronic properties of this material.",
author = "G. Zhang and Yonghui Zhou and Svetlana Korneychuk and Tomas Samuely and Liwang Liu and Paul May and Zheng Xu and Oleksandr Onufriienko and Xuefeng Zhang and Johan Verbeeck and Peter Samuely and Victor Moshchalkov and Zhaorong Yang and Horst-G{\"u}nter Rubahn",
year = "2019",
month = "3",
day = "5",
doi = "10.1103/PhysRevMaterials.3.034801",
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journal = "Physical Review Materials",
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Zhang, G, Zhou, Y, Korneychuk, S, Samuely, T, Liu, L, May, P, Xu, Z, Onufriienko, O, Zhang, X, Verbeeck, J, Samuely, P, Moshchalkov, V, Yang, Z & Rubahn, H-G 2019, 'Superconductor-insulator transition driven by pressure-tuned intergrain coupling in nanodiamond films', Physical Review Materials, bind 3, nr. 3, 034801. https://doi.org/10.1103/PhysRevMaterials.3.034801

Superconductor-insulator transition driven by pressure-tuned intergrain coupling in nanodiamond films. / Zhang, G.; Zhou, Yonghui; Korneychuk, Svetlana; Samuely, Tomas; Liu, Liwang; May, Paul; Xu, Zheng; Onufriienko, Oleksandr; Zhang, Xuefeng; Verbeeck, Johan; Samuely, Peter; Moshchalkov, Victor; Yang, Zhaorong; Rubahn, Horst-Günter.

I: Physical Review Materials, Bind 3, Nr. 3, 034801, 05.03.2019.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Superconductor-insulator transition driven by pressure-tuned intergrain coupling in nanodiamond films

AU - Zhang, G.

AU - Zhou, Yonghui

AU - Korneychuk, Svetlana

AU - Samuely, Tomas

AU - Liu, Liwang

AU - May, Paul

AU - Xu, Zheng

AU - Onufriienko, Oleksandr

AU - Zhang, Xuefeng

AU - Verbeeck, Johan

AU - Samuely, Peter

AU - Moshchalkov, Victor

AU - Yang, Zhaorong

AU - Rubahn, Horst-Günter

PY - 2019/3/5

Y1 - 2019/3/5

N2 - We report on the pressure-driven superconductor-insulator transition in heavily boron-doped nanodiamond films. By systematically increasing the pressure, we suppress the Josephson coupling between the superconducting nanodiamond grains. The diminished intergrain coupling gives rise to an overall insulating state in the films, which is interpreted in the framework of a parallel-series circuit model to be the result of bosonic insulators with preserved localized intragrain superconducting order parameters. Our investigation opens up perspectives for the application of high pressure in research on quantum confinement and coherence. Our data unveil the percolative nature of the electrical transport in nanodiamond films, and highlight the essential role of grain boundaries in determining the electronic properties of this material.

AB - We report on the pressure-driven superconductor-insulator transition in heavily boron-doped nanodiamond films. By systematically increasing the pressure, we suppress the Josephson coupling between the superconducting nanodiamond grains. The diminished intergrain coupling gives rise to an overall insulating state in the films, which is interpreted in the framework of a parallel-series circuit model to be the result of bosonic insulators with preserved localized intragrain superconducting order parameters. Our investigation opens up perspectives for the application of high pressure in research on quantum confinement and coherence. Our data unveil the percolative nature of the electrical transport in nanodiamond films, and highlight the essential role of grain boundaries in determining the electronic properties of this material.

U2 - 10.1103/PhysRevMaterials.3.034801

DO - 10.1103/PhysRevMaterials.3.034801

M3 - Journal article

VL - 3

JO - Physical Review Materials

JF - Physical Review Materials

SN - 2475-9953

IS - 3

M1 - 034801

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