A5067669611- Topological Materials and Phenomena
- Advanced Condensed Matter Physics
- Physics of Superconductivity and Magnetism
- 2D Materials and Applications
- Graphene research and applications
- Iron-based superconductors research
- Electromagnetic wave absorption materials
- Rare-earth and actinide compounds
- Advanced Sensor and Energy Harvesting Materials
- Magnetic and transport properties of perovskites and related materials
- Quantum and electron transport phenomena
- Electronic and Structural Properties of Oxides
- Thermal Radiation and Cooling Technologies
- Flame retardant materials and properties
- MXene and MAX Phase Materials
- Surface and Thin Film Phenomena
- Microwave Dielectric Ceramics Synthesis
- Berry genetics and cultivation research
- Multiferroics and related materials
- Plant Physiology and Cultivation Studies
- Dielectric materials and actuators
- Force Microscopy Techniques and Applications
- Building Energy and Comfort Optimization
- Tribology and Wear Analysis
- Electromagnetic Compatibility and Noise Suppression
Donghua University
2024-2025
Peking University
2015-2023
Czech Academy of Sciences, Institute of Physics
2019
Chinese Academy of Sciences
2019
University of Chinese Academy of Sciences
2019
Songshan Lake Materials Laboratory
2019
Collaborative Innovation Center of Quantum Matter
2017
Georgia Institute of Technology
2011
Abstract Multifunctional materials that muster electromagnetic waves absorption (EMA) and thermal conduction features are highly desirable in electronic packaging of advanced electronics. However, traditional carbon‐based ceramic‐based often rely on semiempirical rules when preparing these bifunctional composites because incompatibility between dielectric behavior conductivity. Herein, two (SiC@RGO/EP (SCGE) Si 3 N 4 @RGO/EP (SNGE)) with different obtained by assembling 1D ceramics whiskers...
Two-dimensional (2D) nanosheet arrays with unidirectional orientations are of great significance for synthesizing wafer-scale single crystals. Although efforts have been devoted, the growth atomically thin magnetic and crystals is still unaddressed. Here we design an interisland-distance-mediated chemical vapor deposition strategy to synthesize centimeter-scale Fe3O4 on mica. The alignment nearly all nanosheets driven by a dual-coupling-guided mechanism. Fe3O4/mica interlayer interaction...
The metallic ground state in two-dimensional (2D) superconductors has attracted much attention but is still under intense scrutiny. Especially, the measurements ultralow temperature region are challenging for 2D due to sensitivity external perturbations. In this work, resistance saturation induced by noise, named as "extrinsic anomalous state", observed transition metal dichalcogenide (TMD) superconductor 4Ha-TaSe2 nanodevices. However, with further decreasing temperature, credible evidence...
The search for nontrivial superconductivity in novel quantum materials is currently a most attractive topic condensed matter physics and material science. experimental studies have progressed quickly over the past couple of years. In this article, we report systematic Au2Pb single crystals. bulk (onset transition temperature, Tconset= 1.3 K) characterized by both transport diamagnetic measurements, where upper critical field Hc2 shows unusual quasi-linear temperature dependence....
Berry phase and curvature play a key role in the development of topology physics do contribute to transport properties solid state systems. In this paper, we report finding novel nonzero Hall effect topological material ZrTe5 flakes when in-plane magnetic field is parallel perpendicular current. Surprisingly, both symmetric antisymmetric components with respect are detected resistivity. Further theoretical analysis suggests that magnetotransport originate from anomalous velocity induced by...
Abstract Itinerant kagome lattice magnets exhibit many novel correlated and topological quantum electronic states with broken time-reversal symmetry. Superconductivity, however, has not been observed in this class of materials, presenting a roadblock promising path toward superconductivity. Here, we report that superconductivity can emerge at the interface Chern magnet TbMn 6 Sn metal heterostructures when elemental metallic thin films are deposited on either top (001) surface or side...
BACKGROUND: Firmness is an important quality index for blueberries. It the major factor that determines consumer acceptability, storability and resistance to injury diseases during storage fresh marketing. Blueberry cultivars vary in their firmness, with southern highbush usually softer than Rabbiteye In this study, varietal harvest effects on blueberry firmness were measured by Firmtech II laser air-puff instruments. This was first time air-puff, a non-contact food tester, had been used...
Recently, intrinsic antiferromagnetic topological insulator MnBi2Te4 has drawn intense research interest and leads to plenty of significant progress in physics materials science by hosting quantum anomalous Hall effect, axion state, other phases. An essential ingredient realize these states is the magnetic gap surface induced out-of-plane ferromagnetism on MnBi2Te4. However, experimental observations remain controversial. Here, we report observation via point contact tunneling spectroscopy....
The search for unconventional superconductivity in Weyl semimetal materials is currently an exciting pursuit, since such superconducting phases could potentially be topologically nontrivial and host exotic Majorana modes. layered material TaIrTe4 a newly predicted time-reversal invariant type II with minimum number of points. Here, we report the discovery surface TaIrTe4. Our scanning tunneling microscopy/spectroscopy (STM/S) visualizes Fermi arc states that are consistent previous...
Outdoor thermal irritation poses a serious threat to public health, with the frequent occurrence of increasingly intense heat waves. With global goal carbon peaking and neutrality, there is an urgent need for strategy that efficient can provide localized outdoor cooling without intensive energy input. This paper demonstrated rapidly formable polyurethane-based coating controlled bimodal spherical micropores. Nano-Al2O3 particles (300 nm) embedded in polymer were used targeted enhancement...
Differential resistance measurements are conducted for point contacts (PCs) between the ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$ (SRO) single crystal and tungsten tip approaching along $c$ axis direction of crystal. Since contact is made at liquid helium temperature hard enough to penetrate through surface layer, consistent superconducting features observed. First, with pushed towards crystal, zero-bias conductance peak (ZBCP) due Andreev reflection normal-superconducting interface increases...
The coexistence of the type-II Weyl semimetal phase and superconductivity in layered transition-metal dichalcogenide $\mathrm{Mo}{\mathrm{Te}}_{2}$ is great interest as it considered a promising candidate for an intrinsic topological superconductor. However, ultralow superconducting critical temperature (${T}_{c}$) \ensuremath{\sim}0.1 K limits exploration properties. Here investigated by systematic transport measurements with standard four-electrode configuration, together hard...
Topological superconductors showing Majorana fermions or bound states at the edge surface are promising components for potential quantum computation and thus attract much attention in physical sciences. Recently, topological Weyl fermion have been discovered nonsuperconducting TaP crystals, which may offer a great platform to investigate nontrivial superconductivity if can be induced wherein. Here we report discovery of nonmagnetic ferromagnetic tips unconventional interface around nanoscale...
We report single crystal growth of CoSi, which has recently been recognized as a new type topological semimetal hosting fourfold and sixfold degenerate nodes. The Shubnikov–de Haas quantum oscillation (QO) is observed on our crystals. There are two frequencies originating from almost isotropic bulk electron Fermi surfaces, in accordance with band structure calculations. effective mass, scattering rate, QO phase difference the extracted discussed.
Sr2RuO4 (SRO) is the prime candidate for a chiral p-wave superconductor with critical temperature K. Chiral domains opposite chiralities have been proposed, but are yet to be confirmed. We measure field dependence of point contact (PC) resistance between tungsten tip and an SRO–Ru eutectic crystal, where micrometer-sized Ru inclusions embedded in SRO atomically sharp interface. Ruthenium s-wave K; flux pinned near can suppress its superconductivity, as reflected PC spectra. This pinning...
ZrRuAs single crystals with hexagonal crystal structure, which is a kind of non-centrosymmetric superconductor relatively high transition temperature, predicted to be topological candidate. To explore the exotic properties ZrRuAs, superconducting gap needs measured. In this work, point-contact Andreev reflection (PCAR) spectroscopy used investigate superconductivity crystals. The double conductance peaks in PCAR spectra are observed along different directions. can quantitatively analyzed by...
Recently, we presented a paper about the tip-induced superconducting phase on TaAs single crystal (arXiv:1607.00513). A conductance plateau with double peaks at finite bias, sharp dips and zero bias peak were observed in point contact spectra (PCS). These three features one PCS suggest possibility of p-wave like superconductivity Majorana modes surface. Soon after our posted arXiv, Gayen el al. (arXiv:1607.01405) questioned underlying mechanism observations based their experimental...
Hard point-contact spectroscopy and scanning probe microscopy/spectroscopy are powerful techniques for investigating materials with strong expandability. To support these studies, tips various physical chemical properties required. ensure the reproducibility of experimental results, fabrication should be standardized, a controllable convenient system set up. Here, systematic methodology to fabricate is proposed, involving electrochemical etching reactions. The reaction parameters fall into...
We present a polarization and topology resolved study of the low energy band structure in optimally doped superconducting Ba0.6K0.4Fe2As2 using angle photoemission spectroscopy. Polarization-contrasted measurements allow us to identify trace all bands expected models, revealing unexpected symmetry breaking surprisingly intertwined Fermi surface hole-like near Brillouin zone center. Band correlations across Gamma-M spin fluctuation wavevector are compared with gap anisotropy which suggest...