Interface-induced superconductivity in magnetic topological insulators.

Journal

Science (New York, N.Y.)
ISSN: 1095-9203
Titre abrégé: Science
Pays: United States
ID NLM: 0404511

Informations de publication

Date de publication:
09 Feb 2024
Historique:
medline: 8 2 2024
pubmed: 8 2 2024
entrez: 8 2 2024
Statut: ppublish

Résumé

The interface between two different materials can show unexpected quantum phenomena. In this study, we used molecular beam epitaxy to synthesize heterostructures formed by stacking together two magnetic materials, a ferromagnetic topological insulator (TI) and an antiferromagnetic iron chalcogenide (FeTe). We observed emergent interface-induced superconductivity in these heterostructures and demonstrated the co-occurrence of superconductivity, ferromagnetism, and topological band structure in the magnetic TI layer-the three essential ingredients of chiral topological superconductivity (TSC). The unusual coexistence of ferromagnetism and superconductivity is accompanied by a high upper critical magnetic field that exceeds the Pauli paramagnetic limit for conventional superconductors at low temperatures. These magnetic TI/FeTe heterostructures with robust superconductivity and atomically sharp interfaces provide an ideal wafer-scale platform for the exploration of chiral TSC and Majorana physics.

Identifiants

DOI: 10.1126/science.adk1270 PMID: 38330133
pubmed: 38330133
doi: 10.1126/science.adk1270
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

634-639

Auteurs

Hemian Yi (H)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0000-0002-6488-2335

Yi-Fan Zhao (YF)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.

Ying-Ting Chan (YT)

Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA.
ORCID: 0000-0002-5096-097X

Jiaqi Cai (J)

Department of Physics, University of Washington, Seattle, WA 98195, USA.
ORCID: 0000-0002-7829-9554

Ruobing Mei (R)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0009-0005-4591-7220

Xianxin Wu (X)

CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China.
ORCID: 0009-0004-3916-7120

Zi-Jie Yan (ZJ)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0000-0001-6176-319X

Ling-Jie Zhou (LJ)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0000-0003-2621-6734

Ruoxi Zhang (R)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0000-0003-2265-5844

Zihao Wang (Z)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0009-0005-9734-8816

Stephen Paolini (S)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0009-0003-4798-406X

Run Xiao (R)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0000-0002-8543-6502

Ke Wang (K)

Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0000-0002-1174-0907

Anthony R Richardella (AR)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0009-0001-0057-1474

John Singleton (J)

National High Magnetic Field Laboratory, Los Alamos, NM 87544, USA.
ORCID: 0000-0001-6109-6905

Laurel E Winter (LE)

National High Magnetic Field Laboratory, Los Alamos, NM 87544, USA.
ORCID: 0000-0001-9164-1767

Thomas Prokscha (T)

Laboratory for Muon Spectroscopy, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
ORCID: 0000-0002-7643-4695

Zaher Salman (Z)

Laboratory for Muon Spectroscopy, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
ORCID: 0000-0002-3431-8135

Andreas Suter (A)

Laboratory for Muon Spectroscopy, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
ORCID: 0000-0002-9214-6474

Purnima P Balakrishnan (PP)

NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
ORCID: 0000-0002-1426-669X

Alexander J Grutter (AJ)

NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
ORCID: 0000-0002-6876-7625

Moses H W Chan (MHW)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0000-0002-9582-527X

Nitin Samarth (N)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA.
Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0000-0003-2599-346X

Xiaodong Xu (X)

Department of Physics, University of Washington, Seattle, WA 98195, USA.
Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA.
ORCID: 0000-0003-0348-2095

Weida Wu (W)

Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA.
ORCID: 0000-0003-1691-6091

Chao-Xing Liu (CX)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0000-0003-1881-1365

Cui-Zu Chang (CZ)

Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA.
ORCID: 0000-0003-3515-2955

Classifications MeSH