Current-phase relation of a short multi-mode Bi2Se3 topological insulator nanoribbon Josephson junction with ballistic transport modes

Ananthu P. Surendran; Domenico Montemurro; Gunta Kunakova; Xavier Palermo; Kiryl Niherysh; Edoardo Trabaldo; Dmitry S. Golubev; Jana Andzane; Donats Erts; Floriana Lombardi; Thilo Bauch

doi:10.1088/1361-6668/accf40

Current-phase relation of a short multi-mode Bi₂Se₃ topological insulator nanoribbon Josephson junction with ballistic transport modes

Ananthu P. Surendran, Domenico Montemurro, Gunta Kunakova, Xavier Palermo, Kiryl Niherysh, Edoardo Trabaldo, Dmitry S. Golubev, Jana Andzane, Donats Erts, Floriana Lombardi, Thilo Bauch^*

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

2 Sitaatiot (Scopus)

43 Lataukset (Pure)

Abstrakti

We used the asymmetric superconducting quantum interference device (SQUID) technique to extract the current phase relation (CPR) of a Josephson junction with a 3D-topological insulator (3D-TI) Bi₂Se₃ nanobelt as the barrier. The obtained CPR shows deviations from the standard sinusoidal CPR with a pronounced forward skewness. At temperatures below 200 mK, the junction skewness values are above the zero temperature limit for short diffusive junctions. Fitting of the extracted CPR shows that most of the supercurrent is carried by ballistic topological surface states (TSSs), with a small contribution of diffusive channels primarily due to the bulk. These findings are instrumental in engineering devices that can fully exploit the properties of the topologically protected surface states of 3D TIs.

Alkuperäiskieli	Englanti
Artikkeli	064003
Sivut	1-9
Sivumäärä	9
Julkaisu	Superconductor Science and Technology
Vuosikerta	36
Numero	6
DOI - pysyväislinkit	https://doi.org/10.1088/1361-6668/accf40
Tila	Julkaistu - kesäk. 2023
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Pääsy asiakirjaan

10.1088/1361-6668/accf40Lisenssi: CC BY

Current-phase relation of a short multi-mode Bi2Se3 topological insulator nanoribbon Josephson junction with ballistic transport modesFinal published version, 1,53 MBLisenssi: CC BY

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QuESTech: QUantum Electronics Science and TECHnology training
Pekola, J. (Vastuullinen tutkija), Karimi, B. (Projektin jäsen) & Peltonen, J. (Projektin jäsen)
01/01/2018 → 31/12/2021
Projekti: EU: Framework programmes funding

Siteeraa tätä

Surendran, A. P., Montemurro, D., Kunakova, G., Palermo, X., Niherysh, K., Trabaldo, E., Golubev, D. S., Andzane, J., Erts, D., Lombardi, F., & Bauch, T. (2023). Current-phase relation of a short multi-mode Bi₂Se₃ topological insulator nanoribbon Josephson junction with ballistic transport modes. Superconductor Science and Technology, 36(6), 1-9. Artikkeli 064003. https://doi.org/10.1088/1361-6668/accf40

@article{b4d00be79d2d4dc9a8b006c5c7725bcb,

title = "Current-phase relation of a short multi-mode Bi2Se3 topological insulator nanoribbon Josephson junction with ballistic transport modes",

abstract = "We used the asymmetric superconducting quantum interference device (SQUID) technique to extract the current phase relation (CPR) of a Josephson junction with a 3D-topological insulator (3D-TI) Bi2Se3 nanobelt as the barrier. The obtained CPR shows deviations from the standard sinusoidal CPR with a pronounced forward skewness. At temperatures below 200 mK, the junction skewness values are above the zero temperature limit for short diffusive junctions. Fitting of the extracted CPR shows that most of the supercurrent is carried by ballistic topological surface states (TSSs), with a small contribution of diffusive channels primarily due to the bulk. These findings are instrumental in engineering devices that can fully exploit the properties of the topologically protected surface states of 3D TIs.",

keywords = "current phase relation, Josephson junction, SQUID, topological insulator",

author = "Surendran, {Ananthu P.} and Domenico Montemurro and Gunta Kunakova and Xavier Palermo and Kiryl Niherysh and Edoardo Trabaldo and Golubev, {Dmitry S.} and Jana Andzane and Donats Erts and Floriana Lombardi and Thilo Bauch",

note = "Funding Information: This work was supported by the European Union{\textquoteright}s H2020 under the Marie Curie Actions (No. 766025-QuESTech). This work has been supported by the European Union{\textquoteright}s Horizon 2020 Research and Innovation Program (Grant Agreement No. 766714/HiTIMe). K Niherysh acknowledges the financial support of the {\textquoteleft}Strengthening of the capacity of doctoral studies at the University of Latvia within the framework of the new doctoral model{\textquoteright}, identification no. 8.2.2.0/20/I/006. | openaire: EC/H2020/766025/EU//QuESTech | openaire: EC/H2020/766714/EU//HiTIMe ",

year = "2023",

month = jun,

doi = "10.1088/1361-6668/accf40",

language = "English",

volume = "36",

pages = "1--9",

journal = "Superconductor Science and Technology",

issn = "0953-2048",

publisher = "Institute of Physics Publishing",

number = "6",

}

Surendran, AP, Montemurro, D, Kunakova, G, Palermo, X, Niherysh, K, Trabaldo, E, Golubev, DS, Andzane, J, Erts, D, Lombardi, F & Bauch, T 2023, 'Current-phase relation of a short multi-mode Bi₂Se₃ topological insulator nanoribbon Josephson junction with ballistic transport modes', Superconductor Science and Technology, Vuosikerta 36, Nro 6, 064003, Sivut 1-9. https://doi.org/10.1088/1361-6668/accf40

Current-phase relation of a short multi-mode Bi₂Se₃ topological insulator nanoribbon Josephson junction with ballistic transport modes. / Surendran, Ananthu P.; Montemurro, Domenico; Kunakova, Gunta et al.
julkaisussa: Superconductor Science and Technology, Vuosikerta 36, Nro 6, 064003, 06.2023, s. 1-9.

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

TY - JOUR

T1 - Current-phase relation of a short multi-mode Bi2Se3 topological insulator nanoribbon Josephson junction with ballistic transport modes

AU - Surendran, Ananthu P.

AU - Montemurro, Domenico

AU - Kunakova, Gunta

AU - Palermo, Xavier

AU - Niherysh, Kiryl

AU - Trabaldo, Edoardo

AU - Golubev, Dmitry S.

AU - Andzane, Jana

AU - Erts, Donats

AU - Lombardi, Floriana

AU - Bauch, Thilo

N1 - Funding Information: This work was supported by the European Union’s H2020 under the Marie Curie Actions (No. 766025-QuESTech). This work has been supported by the European Union’s Horizon 2020 Research and Innovation Program (Grant Agreement No. 766714/HiTIMe). K Niherysh acknowledges the financial support of the ‘Strengthening of the capacity of doctoral studies at the University of Latvia within the framework of the new doctoral model’, identification no. 8.2.2.0/20/I/006. | openaire: EC/H2020/766025/EU//QuESTech | openaire: EC/H2020/766714/EU//HiTIMe

PY - 2023/6

Y1 - 2023/6

N2 - We used the asymmetric superconducting quantum interference device (SQUID) technique to extract the current phase relation (CPR) of a Josephson junction with a 3D-topological insulator (3D-TI) Bi2Se3 nanobelt as the barrier. The obtained CPR shows deviations from the standard sinusoidal CPR with a pronounced forward skewness. At temperatures below 200 mK, the junction skewness values are above the zero temperature limit for short diffusive junctions. Fitting of the extracted CPR shows that most of the supercurrent is carried by ballistic topological surface states (TSSs), with a small contribution of diffusive channels primarily due to the bulk. These findings are instrumental in engineering devices that can fully exploit the properties of the topologically protected surface states of 3D TIs.

AB - We used the asymmetric superconducting quantum interference device (SQUID) technique to extract the current phase relation (CPR) of a Josephson junction with a 3D-topological insulator (3D-TI) Bi2Se3 nanobelt as the barrier. The obtained CPR shows deviations from the standard sinusoidal CPR with a pronounced forward skewness. At temperatures below 200 mK, the junction skewness values are above the zero temperature limit for short diffusive junctions. Fitting of the extracted CPR shows that most of the supercurrent is carried by ballistic topological surface states (TSSs), with a small contribution of diffusive channels primarily due to the bulk. These findings are instrumental in engineering devices that can fully exploit the properties of the topologically protected surface states of 3D TIs.

KW - current phase relation

KW - Josephson junction

KW - SQUID

KW - topological insulator

UR - http://www.scopus.com/inward/record.url?scp=85159725586&partnerID=8YFLogxK

U2 - 10.1088/1361-6668/accf40

DO - 10.1088/1361-6668/accf40

M3 - Article

AN - SCOPUS:85159725586

SN - 0953-2048

VL - 36

SP - 1

EP - 9

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

IS - 6

M1 - 064003

ER -

Current-phase relation of a short multi-mode Bi2Se3 topological insulator nanoribbon Josephson junction with ballistic transport modes

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Projektit

QuESTech: QUantum Electronics Science and TECHnology training

Siteeraa tätä

Current-phase relation of a short multi-mode Bi₂Se₃ topological insulator nanoribbon Josephson junction with ballistic transport modes