IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v15y2024i1d10.1038_s41467-024-54389-6.html
   My bibliography  Save this article

Surface superconductivity in the topological Weyl semimetal t-PtBi2

Author

Listed:
  • Sebastian Schimmel

    (Bergische Universität Wuppertal
    Leibniz-Institute for Solid State and Materials Research (IFW-Dresden))

  • Yanina Fasano

    (Leibniz-Institute for Solid State and Materials Research (IFW-Dresden)
    Centro Atómico Bariloche)

  • Sven Hoffmann

    (Bergische Universität Wuppertal
    Leibniz-Institute for Solid State and Materials Research (IFW-Dresden))

  • Julia Besproswanny

    (Bergische Universität Wuppertal
    Leibniz-Institute for Solid State and Materials Research (IFW-Dresden))

  • Laura Teresa Corredor Bohorquez

    (Leibniz-Institute for Solid State and Materials Research (IFW-Dresden))

  • Joaquín Puig

    (Leibniz-Institute for Solid State and Materials Research (IFW-Dresden)
    Centro Atómico Bariloche)

  • Bat-Chen Elshalem

    (Bar-Ilan University)

  • Beena Kalisky

    (Bar-Ilan University)

  • Grigory Shipunov

    (Leibniz-Institute for Solid State and Materials Research (IFW-Dresden)
    University of Amsterdam)

  • Danny Baumann

    (Leibniz-Institute for Solid State and Materials Research (IFW-Dresden))

  • Saicharan Aswartham

    (Leibniz-Institute for Solid State and Materials Research (IFW-Dresden))

  • Bernd Büchner

    (Leibniz-Institute for Solid State and Materials Research (IFW-Dresden)
    Technische Universität Dresden)

  • Christian Hess

    (Bergische Universität Wuppertal
    Leibniz-Institute for Solid State and Materials Research (IFW-Dresden))

Abstract

Topological superconductivity is a promising concept for generating fault-tolerant qubits. Early experimental studies looked at hybrid systems and doped intrinsic topological or superconducting materials at very low temperatures. However, higher critical temperatures are indispensable for technological exploitation. Recent angle-resolved photoemission spectroscopy results have revealed that superconductivity in the type-I Weyl semimetal—trigonal PtBi2 (t-PtBi2)—is located at the Fermi-arc surface states, which renders the material a potential candidate for intrinsic topological superconductivity. Here we show, using scanning tunnelling microscopy and spectroscopy, that t-PtBi2 presents surface superconductivity at elevated temperatures (5 K). The gap magnitude is elusive: it is spatially inhomogeneous and spans from 0 to 20 meV. In particular, the large gap value and the shape of the quasiparticle excitation spectrum resemble the phenomenology of high-Tc superconductors. To our knowledge, this is the largest superconducting gap so far measured in a topological material. Moreover, we show that the superconducting state at 5 K persists in magnetic fields up to 12 T.

Suggested Citation

  • Sebastian Schimmel & Yanina Fasano & Sven Hoffmann & Julia Besproswanny & Laura Teresa Corredor Bohorquez & Joaquín Puig & Bat-Chen Elshalem & Beena Kalisky & Grigory Shipunov & Danny Baumann & Saicha, 2024. "Surface superconductivity in the topological Weyl semimetal t-PtBi2," Nature Communications, Nature, vol. 15(1), pages 1-6, December.
  • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-54389-6
    DOI: 10.1038/s41467-024-54389-6
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-024-54389-6
    File Function: Abstract
    Download Restriction: no

    File URL: https://libkey.io/10.1038/s41467-024-54389-6?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Ce Huang & Benjamin T. Zhou & Huiqin Zhang & Bingjia Yang & Ran Liu & Hanwen Wang & Yimin Wan & Ke Huang & Zhiming Liao & Enze Zhang & Shanshan Liu & Qingsong Deng & Yanhui Chen & Xiaodong Han & Jin Z, 2019. "Proximity-induced surface superconductivity in Dirac semimetal Cd3As2," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    2. Yanpeng Qi & Pavel G. Naumov & Mazhar N. Ali & Catherine R. Rajamathi & Walter Schnelle & Oleg Barkalov & Michael Hanfland & Shu-Chun Wu & Chandra Shekhar & Yan Sun & Vicky Süß & Marcus Schmidt & Ulri, 2016. "Superconductivity in Weyl semimetal candidate MoTe2," Nature Communications, Nature, vol. 7(1), pages 1-7, April.
    3. Y. Kasahara & T. Ohnishi & Y. Mizukami & O. Tanaka & Sixiao Ma & K. Sugii & N. Kurita & H. Tanaka & J. Nasu & Y. Motome & T. Shibauchi & Y. Matsuda, 2018. "Majorana quantization and half-integer thermal quantum Hall effect in a Kitaev spin liquid," Nature, Nature, vol. 559(7713), pages 227-231, July.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Hikaru Takeda & Masataka Kawano & Kyo Tamura & Masatoshi Akazawa & Jian Yan & Takeshi Waki & Hiroyuki Nakamura & Kazuki Sato & Yasuo Narumi & Masayuki Hagiwara & Minoru Yamashita & Chisa Hotta, 2024. "Magnon thermal Hall effect via emergent SU(3) flux on the antiferromagnetic skyrmion lattice," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. G. Cassella & P. d’Ornellas & T. Hodson & W. M. H. Natori & J. Knolle, 2023. "An exact chiral amorphous spin liquid," Nature Communications, Nature, vol. 14(1), pages 1-6, December.
    3. Le Duc Anh & Keita Ishihara & Tomoki Hotta & Kohdai Inagaki & Hideki Maki & Takahiro Saeki & Masaki Kobayashi & Masaaki Tanaka, 2024. "Large superconducting diode effect in ion-beam patterned Sn-based superconductor nanowire/topological Dirac semimetal planar heterostructures," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    4. Lu Chen & Étienne Lefrançois & Ashvini Vallipuram & Quentin Barthélemy & Amirreza Ataei & Weiliang Yao & Yuan Li & Louis Taillefer, 2024. "Planar thermal Hall effect from phonons in a Kitaev candidate material," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    5. P. T. Yang & Z. Y. Liu & K. Y. Chen & X. L. Liu & X. Zhang & Z. H. Yu & H. Zhang & J. P. Sun & Y. Uwatoko & X. L. Dong & K. Jiang & J. P. Hu & Y. F. Guo & B. S. Wang & J.-G. Cheng, 2022. "Pressured-induced superconducting phase with large upper critical field and concomitant enhancement of antiferromagnetic transition in EuTe2," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    6. Saurabh Kumar Srivastav & Ravi Kumar & Christian Spånslätt & K. Watanabe & T. Taniguchi & Alexander D. Mirlin & Yuval Gefen & Anindya Das, 2022. "Determination of topological edge quantum numbers of fractional quantum Hall phases by thermal conductance measurements," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    7. Xu-Guang Zhou & Han Li & Yasuhiro H. Matsuda & Akira Matsuo & Wei Li & Nobuyuki Kurita & Gang Su & Koichi Kindo & Hidekazu Tanaka, 2023. "Possible intermediate quantum spin liquid phase in α-RuCl3 under high magnetic fields up to 100 T," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    8. Lingyun Tang & Zhongquan Mao & Chutian Wang & Qi Fu & Chen Wang & Yichi Zhang & Jingyi Shen & Yuefeng Yin & Bin Shen & Dayong Tan & Qian Li & Yonggang Wang & Nikhil V. Medhekar & Jie Wu & Huiqiu Yuan , 2023. "Giant piezoresistivity in a van der Waals material induced by intralayer atomic motions," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    9. Taiki Uehara & Takumi Ohtsuki & Masafumi Udagawa & Satoru Nakatsuji & Yo Machida, 2022. "Phonon thermal Hall effect in a metallic spin ice," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    10. Jiaojian Shi & Ya-Qing Bie & Alfred Zong & Shiang Fang & Wei Chen & Jinchi Han & Zhaolong Cao & Yong Zhang & Takashi Taniguchi & Kenji Watanabe & Xuewen Fu & Vladimir Bulović & Efthimios Kaxiras & Edo, 2023. "Intrinsic 1 $${T}^{{\prime} }$$ T ′ phase induced in atomically thin 2H-MoTe2 by a single terahertz pulse," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    11. Xiaokang Li & Yo Machida & Alaska Subedi & Zengwei Zhu & Liang Li & Kamran Behnia, 2023. "The phonon thermal Hall angle in black phosphorus," Nature Communications, Nature, vol. 14(1), pages 1-6, December.
    12. Dechen Zhang & Kuan-Wen Chen & Guoxin Zheng & Fanghang Yu & Mengzhu Shi & Yuan Zhu & Aaron Chan & Kaila Jenkins & Jianjun Ying & Ziji Xiang & Xianhui Chen & Lu Li, 2024. "Large oscillatory thermal hall effect in kagome metals," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-54389-6. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.