A5101975585- Iron-based superconductors research
- Topological Materials and Phenomena
- Rare-earth and actinide compounds
- Advanced Condensed Matter Physics
- Physics of Superconductivity and Magnetism
- Intellectual Capital and Performance Analysis
- Color Science and Applications
- 2D Materials and Applications
- Magnetic Properties and Applications
- Remote Sensing and Land Use
- Advanced MEMS and NEMS Technologies
- Graphene research and applications
- Mechanical and Optical Resonators
- Corporate Taxation and Avoidance
- Image and Object Detection Techniques
- Surface Roughness and Optical Measurements
- Weber, Simmel, Sociological Theory
- Magnetic and transport properties of perovskites and related materials
- Quantum and electron transport phenomena
- Opinion Dynamics and Social Influence
- Advanced Materials Characterization Techniques
- Optical Systems and Laser Technology
- Robotics and Sensor-Based Localization
- Advanced Measurement and Detection Methods
- Phase-change materials and chalcogenides
North University of China
2022-2024
Chinese Academy of Sciences
2018-2023
Institute of Physics
2018-2023
Boston College
2023
Zhoushan Hospital
2022
University of Chinese Academy of Sciences
2018-2021
National Laboratory for Superconductivity
2019-2021
Czech Academy of Sciences, Institute of Physics
2020
Xiangtan University
2010
Tianjin University
2002-2004
The search for Majorana bound state (MBS) has recently emerged as one of the most active research areas in condensed matter physics, fueled by prospect using its non-Abelian statistics robust quantum computation. A highly sought-after platform MBS is two-dimensional topological superconductors, where predicted to exist a zero-energy mode core vortex. clear observation MBS, however, often hindered presence additional low-lying states inside vortex core. By scanning tunneling microscope on...
Majorana zero-modes (MZMs) are spatially-localized zero-energy fractional quasiparticles with non-Abelian braiding statistics that hold a great promise for topological quantum computing. Due to its particle-antiparticle equivalence, an MZM exhibits robust resonant Andreev reflection and 2e2/h quantized conductance at low temperature. By utilizing variable-tunnel-coupled scanning tunneling spectroscopy, we study of vortex bound states on FeTe0.55Se0.45 superconductors. We report observations...
Iron-chalcogenide superconductors have emerged as a promising Majorana platform for topological quantum computation. By combining band and superconductivity in single material, they provide significant advantage to realize isolated zero modes. However, iron-chalcogenide superconductors, especially Fe(Te,Se), suffer from strong inhomogeneity which may hamper their practical application. In addition, some iron-pnictide been demonstrated surface states, yet no mode has observed inside vortices,...
Braiding Majorana zero modes is essential for fault-tolerant topological quantum computing. Iron-based superconductors with nontrivial band topology have recently emerged as a surprisingly promising platform creating distinct in magnetic vortices single material and at relatively high temperatures. The field-induced Abrikosov vortex lattice makes it difficult to braid set of or study the coupling doublet due overlapping wave functions. Here we report observation proposed anomalous integer...
Abstract For iron-based superconductors, the phase diagrams under pressure or strain exhibit emergent phenomena between unconventional superconductivity and other electronic orders, varying in different systems. As a stoichiometric superconductor, LiFeAs has no structure transitions entangled states, which manifests an ideal platform to explore effect on superconductivity. Here, we observe two types of superconducting states controlled by orientations local wrinkles surface LiFeAs. Using...
Abstract The iron-based superconductors (FeSCs) have recently emerged as a promising single-material Majorana platform by hosting isolated zero modes (MZMs) at relatively high temperatures. To further verify its nature and move forward to build topological quantum qubits, it is highly desirable achieve tunability for MZMs on homogeneous FeSCs. Here, with an in-situ strain device, we can controllably create the surface of stoichiometric superconductor LiFeAs altering chemical potential....
Abstract The iron-based superconductor is emerging as a promising platform for Majorana zero mode, which can be used to implement topological quantum computation. One of the most significant advances this appearance large vortex level spacing that strongly protects mode from other low-lying quasiparticles. Despite advantages in context physics research, inhomogeneity various aspects hampers practical construction qubits compounds studied so far. Here we show stoichiometric LiFeAs good...
Among the iron-based superconductors, ``122''-type compounds have been widely studied due to availability of high-quality single crystals. However, lack a natural cleavage plane, cleaved surface is usually polarized, which allows doping change or structure modification on surface. In this paper, we propose simple method successfully transform 122-type parent compound $\mathrm{Ba}{\mathrm{Fe}}_{2}{\mathrm{As}}_{2}$ superconductor via room-temperature relaxation uniaxial strain. Using scanning...
Abstract Topologically non-trivial Fe-based superconductors attract extensive attentions due to their ability of hosting Majorana zero modes (MZMs) which could be used for topological quantum computation. Topological defects such as vortex lines are required generate MZMs. Here, we observe the robust edge states along surface steps CaKFe 4 As . Remarkably, tunneling spectra show a sharp zero-bias peak (ZBP) with multiple integer-quantized at step under magnetic field. We propose that...