A5036283829- Topological Materials and Phenomena
- Iron-based superconductors research
- Physics of Superconductivity and Magnetism
- 2D Materials and Applications
- Graphene research and applications
- Quantum and electron transport phenomena
- Advanced Condensed Matter Physics
- Superconductivity in MgB2 and Alloys
- Electronic and Structural Properties of Oxides
- Rare-earth and actinide compounds
- Boron and Carbon Nanomaterials Research
- MXene and MAX Phase Materials
- Inorganic Chemistry and Materials
- Cold Atom Physics and Bose-Einstein Condensates
- Magnetic and transport properties of perovskites and related materials
- Organic and Molecular Conductors Research
- Ferroelectric and Negative Capacitance Devices
- Corporate Taxation and Avoidance
- Heusler alloys: electronic and magnetic properties
- Thermal properties of materials
- Solid-state spectroscopy and crystallography
- Chalcogenide Semiconductor Thin Films
- Quantum, superfluid, helium dynamics
- Perovskite Materials and Applications
- Phase-change materials and chalcogenides
High Magnetic Field Laboratory
2018-2025
Chinese Academy of Sciences
2018-2025
University of Science and Technology of China
2022-2025
Wuhan University
2025
Collaborative Innovation Center of Advanced Microstructures
2023-2025
Hefei Institutes of Physical Science
2018-2024
Central South University
2024
Joint Laboratory for Extreme Conditions Matter Properties
2021-2023
Qufu Normal University
2021
Blackstone (United States)
2014
We demonstrated experimentally that graphene–Cu–graphene heterogeneous films reveal strongly enhanced thermal conductivity as compared to the reference Cu and annealed films. Chemical vapor deposition of a single atomic plane graphene on both sides 9 μm thick increases their by up 24% near room temperature. Interestingly, observed improvement properties heterofilms results primarily from changes in morphology during rather than graphene's action an additional heat conducting channel....
Triply degenerate point (TP) fermions in tungsten-carbide-type materials (e.g., MoP), which represent new topological states of quantum matter, have generated immense interest recently. However, the TPs these are found to be far below Fermi level, leading TP having less contribution low-energy quasiparticle excitations. Here, we theoretically predict existence with points close level trigonal layered PtBi2 by ab initio calculations, and experimentally verify predicted band topology...
We review recent progress in the exploration of topological quantum states matter iron-based superconductors. In particular, we focus on non-trivial topology existing band structures and superconducting iron's 3d orbitals. The basic concepts, models, materials experimental results are reviewed. natural integration between high-temperature superconductivity superconductors provides great opportunities to study Majorana modes at high temperature.
Abstract The adoption of high pressure not only reinforces the comprehension structure and exotic electronic states transition metal dichalcogenides (TMDs) but also promotes discovery intriguing phenomena. Here, 1T-TaS 2 was investigated up to 100 GPa, re-enhanced superconductivity found with structural phase transitions. discovered I4/mmm TaS presents strong electron–phonon coupling, revealing a good nonlayered structure. P – T diagram shows dome shape centered at ~20 which is attributed...
Superconductivity was discovered in (InSe2)xNbSe2. The materials are crystallized a unique layered structure where bonded InSe2 layers intercalated into the van der Waals gaps of 2H-phase NbSe2. (InSe2)0.12NbSe2 superconductor exhibits superconducting transition at 11.6 K and critical current density 8.2 × 105 A/cm2. Both values highest among all metal dichalcogenide superconductors ambient pressure. present finding provides an ideal material platform for further investigation...
Extracting geographic information from texts contributes to both science research and various practical applications, but extracting fine-grained complex location descriptions Chinese text is still challenging, due flexible word construction lack of clear boundaries in place names. In this paper, we propose a regularity-guided boundary-aware architecture for toponym recognition (RB-TRNet), achieving name by learning the internal compositional patterns constructions automatically perceiving...
The nodal-line semimetals have attracted immense interest due to the unique electronic structures such as linear dispersion and vanishing density of states Fermi energy approaching nodes. Here, we report temperature-dependent transport scanning tunneling microscopy (spectroscopy) [STM(S)] measurements on semimetal ZrSiSe. Our experimental results theoretical analyses consistently demonstrate that temperature induces Lifshitz transitions at 80 106 K in ZrSiSe, which anomalies same...
In recent years, three-dimensional (3D) high-temperature superconductors at ultrahigh pressure have been reported, typical examples are the polyhydrides H3S, LaH10, YH9, etc. To find two-dimensional (2D) atmospheric is another research hotspot. Here, we investigated possible superconductivity in a hydrogenated monolayer phosphorus carbide based on first-principles calculations. The results reveal that PC3 transforms from semiconductor to metal after hydrogenation. Interestingly, C-π-bonding...
The dominating superconducting pairing symmetry of the kagome-lattice Hubbard model is investigated using determinant quantum Monte Carlo method. instability occurs when doping correlated insulators formed by interaction near Dirac filling, and state exhibits an electron-hole asymmetry. Among symmetries allowed, we demonstrate that channel d-wave in hole-doped case. This opens possibility condensation into unconventional $d_{x^2-y^2}+id_{xy}$ phase, which characterized integer topological...
A recent experiment reported the evidence of dispersing one-dimensional Majorana mode trapped by crystalline domain walls in FeSe_{0.45}Te_{0.55}. Here, we perform first-principles calculations to show that iron atoms wall spontaneously form ferromagnetic order line with orientation wall. The ferromagnetism can impose a π phase difference between domain-wall-separated surface superconducting regimes under appropriate width and magnetization Accordingly, topological state FeSe_{0.45}Te_{0.55}...
In two-dimensional system, Rashba spin-orbit coupling can lift spin degeneracy and gives the opposite chirality of two split Fermi circles from bands. Here, we propose a generic model which produce unconventional such case, bands have same chirality. When various interactions are taken into account, many unique physics emerge in case comparison with conventional For instance, study galvanic effect by considering cases potential impurity scattering magnetic scattering, respectively. both...
Superconductivity originates from pairing of electrons. Pairing channel on Fermi surface and glue are thus two pivotal issues for understanding a superconductor. Recently, high-temperature superconductivity over 40 K was found in electron-doped FeSe superconductors including K$_x$Fe$_{2-y}$Se$_2$, Li$_{0.8}$Fe$_{0.2}$OHFeSe, 1 monolayer thin film. However, their mechanism remains controversial. Here, we studied the systematic evolution electronic structure potassium-coated single crystal....
Materials featuring the kagome configuration hold significant research potential following their discovery. Drawing inspiration from ${\mathrm{MgB}}_{2}$, we introduce a topological superconducting family: ${X\mathrm{B}}_{3}$ $(X=\mathrm{Ni}, \mathrm{Pd})$. This prediction is based on first-principles calculations and an analysis of bulk-edge correspondence. In this family, boron atoms transition original honeycomb arrangement to form stable lattice, as confirmed by phonon spectrum analysis....
Addressing the need for modulated spin configurations is crucial, as they serve foundational building blocks next-generation spintronics, particularly in atomically thin structures and at room temperature. In this work, we realize intrinsic ferromagnetism monolayer flakes tunable ferro-/antiferromagnetism (Fe0.56Co0.44)5GeTe2 antiferromagnets. Remarkably, ferromagnetic ordering (≥1 L) antiferromagnetic (≥4 remain discernible up to The TC (∼310 K) of sets a record high known exfoliated van...
<title>Abstract</title> The quantum states of matter reorganize themselves in response to defects, giving rise emergent local excitations that imprint unique characteristics the host states. While magnetic impurities are known generate Kondo screening a Fermi liquid and Yu-Shiba-Rusinov (YSR) conventional superconductor, it remains unclear whether they can evoke distinct phenomena kagome superconductor AV3Sb5 (where A is K, Rb or Cs), which may an orbital-antiferromagnetic charge density...
We report the observation of local superconductivity induced at point contact formed between a normal metal tip and WC -- triple topological semimetal with super hardness. Remarkably, maximum critical temperature is up to near 12 K but insensitive tip's magnetism. The lateral dimensions superconducting puddles were evaluated dependencies gap upper field also obtained. These results put constraints on explanation pave pathway for exploring superconductivity.
Recent experiments have tuned the monolayer $1{\mathrm{T}}^{\ensuremath{'}}\text{\ensuremath{-}}{\mathrm{WTe}}_{2}$ to be superconducting by electrostatic gating. Here, we theoretically study phonon-mediated superconductivity in via charge doping. We reveal that emergence of soft-mode phonons with specific momentum is crucial give rise electron-doping regime, whereas no such and emerge hole-doping regime. also find a dome, which can attributed change Fermi surface nesting conditions electron...