A5004549596- Advanced Condensed Matter Physics
- Magnetic and transport properties of perovskites and related materials
- Iron-based superconductors research
- Multiferroics and related materials
- 2D Materials and Applications
- Topological Materials and Phenomena
- Electronic and Structural Properties of Oxides
- Rare-earth and actinide compounds
- Physics of Superconductivity and Magnetism
- Graphene research and applications
- High-pressure geophysics and materials
- MXene and MAX Phase Materials
- Organic and Molecular Conductors Research
- Ferroelectric and Piezoelectric Materials
- ZnO doping and properties
- Superconductivity in MgB2 and Alloys
- Copper-based nanomaterials and applications
- Magnetic properties of thin films
- Thermal Expansion and Ionic Conductivity
- Magnetic Properties and Synthesis of Ferrites
- Advanced Thermoelectric Materials and Devices
- Superconducting Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Quantum, superfluid, helium dynamics
- Corporate Taxation and Avoidance
Chinese Academy of Sciences
2016-2025
High Magnetic Field Laboratory
2016-2025
Nanjing University
2015-2025
Collaborative Innovation Center of Advanced Microstructures
2016-2025
Anhui University
2018-2025
Yunnan University
2025
Institute of Geology and Geophysics
2025
Hefei Institutes of Physical Science
2012-2024
University of Science and Technology of China
2000-2024
Joint Laboratory for Extreme Conditions Matter Properties
2023
Abstract Tungsten ditelluride has attracted intense research interest due to the recent discovery of its large unsaturated magnetoresistance up 60 T. Motivated by presence a small, sensitive Fermi surface 5 d electronic orbitals, we boost properties applying high pressure, and introduce superconductivity successfully. Superconductivity sharply appears at pressure 2.5 GPa, rapidly reaching maximum critical temperature ( T c ) 7 K around 16.8 followed monotonic decrease in with increasing...
Quasi-two-dimensional kagome metals AV3Sb5 (A = K, Rb, and Cs) have attracted much recent interest due to exotic quantum phenomena such as unconventional superconductivity, topological charge order giant anomalous Hall effect. Here we report pressure-induced reemergent superconductivity in CsV3Sb5 by electrical transport measurements under high pressures up 47.9 GPa. We show that the superconducting critical temperature Tc is first enhanced pressure reaches its maximum ~ 8.9 K at 0.8 GPa,...
The successful synthesis of superconducting infinite-layer nickelate thin films with the highest Tc ≈ 15 K has ignited great enthusiasm for this material class as potential analogs high-Tc cuprates. Pursuing a higher is always an imperative task in studying new system. Here we report high-quality Pr0.82Sr0.18NiO2 Tconset 17 synthesized by carefully tuning amount CaH2 topotactic chemical reduction and effect pressure on its properties measuring electrical resistivity under various pressures...
Significance Three-dimensional (3D) Dirac semimetals have attracted a lot of advanced research recently on many exotic properties and their association with crystalline electronic structures under extreme conditions. As one the fundamental state parameters, high pressure is an effective, clean way to tune lattice as well states, especially in quantum thus magnetic properties. In this paper, by combining multiple experimental probes (synchrotron X-ray diffraction, low-temperature transport...
As a follow-up of our previous work on pressure-induced metallization the 2H_{c}-MoS_{2} [Chi et al., Phys. Rev. Lett. 113, 036802 (2014)PRLTAO0031-900710.1103/PhysRevLett.113.036802], here we extend pressure beyond megabar range to seek after superconductivity via electrical transport measurements. We found that emerges in 2H_{a}-MoS_{2} with an onset critical temperature T_{c} ca. 3 K at 90 GPa. Upon further increasing pressure, is rapidly enhanced 10 and stabilized 12 over wide up 220...
A set of three-dimensional charge-density-wave (3D CDW) VSe2 nano-flakes with different thicknesses were obtained by the scotch tape-based micro-mechanical exfoliation method. Resistivity measurements showed that 3D CDW transition temperature Tp decreases systematically from 105 K in bulk to 81.8 11.6 nm thick flake. The Hall resistivity ρxy all flakes a linear dependent behavior against magnetic field residual electron concentration order ∼1021 cm−3 at 5 K. n increases slightly as thickness...
We report the observation of a large magnetocaloric effect near room temperature in antiperovskite SnCMn3. The maximal magnetic entropy change at first-order ferrimagnetic-paramagnetic transition (TC∼279 K) is about 80.69 mJ/cm3 K and 133 under field 20 kOe 48 kOe, respectively. These values are close to those typical materials. associated with sharp lattice, resistivity magnetization vicinity TC. Through measurements Seebeck coefficient normal Hall effect, title system found undergo...
TaAs as one of the experimentally discovered topological Weyl semimetal has attracted intense interests recently. The ambient two types nodes which are not on same energy level. As an effective way to tune lattice parameters and electronic interactions, high pressure is becoming a significant tool explore new materials well their exotic states. Therefore, it highly interesting investigate behaviors fermions possible structural phase transitions in under pressure. Here, with combination ab...
Abstract We present in situ high-pressure synchrotron X-ray diffraction (XRD) and Raman spectroscopy study, electrical transport measurement of single crystal WSe 2 diamond anvil cells with pressures up to 54.0–62.8 GPa. The XRD results show that the phase undergoes a pressure-induced iso-structural transition via layer sliding, beginning at 28.5 GPa not being completed around 60 data also reveals dominant role in-plane strain over out-of plane compression helping achieve transition....
Among the family of TMDs, ReS2 takes a special position, which crystalizes in unique distorted low-symmetry structure at ambient conditions. The interlayer interaction is rather weak, thus its bulk properties are similar to that monolayer. However, how does compression change and electronic unknown so far. Here using ab initio crystal searching techniques, we explore high-pressure phase transitions extensively predict two new phases. pressure transforms "distorted-1T" very low then...
WTe2 is provoking immense interest owing to its extraordinary properties, such as large positive magnetoresistance, pressure-driven superconductivity and possible type-II Weyl semimetal state. Here we report results of high-pressure synchrotron X-ray diffraction (XRD), Raman electrical transport measurements on WTe2. Both the XRD reveal a structural transition upon compression, starting at 6.0 GPa completing above 15.5 GPa. We have determined that lattice symmetry monoclinic 1T′ with space...
We report here that a new superconducting phase with much higher Tc has been found in K intercalated FeSe compound excess Fe. successfully grew crystals by precisely controlling the starting amount of Besides (SC) transition at ~30 K, we observed sharp drop resistivity and kink susceptibility 44 K. By combining thermodynamic measurements electron spin resonance (ESR), demonstrate this is SC transition. Structural analysis unambiguously reveals two phases coexisting crystals, which are...
The structural and magnetic properties of Bi${}_{6}$Fe${}_{2}$Ti${}_{3}$O${}_{18}$ Bi${}_{6}$FeCrTi${}_{3}$O${}_{18}$ are investigated. samples can be indexed by an orthorhombic lattice with the space group B2cb valence state Fe Cr ions is suggested to $+$3 based on x-ray photoelectron spectroscopy spectra. sample paramagnetic presence a short-range antiferromagnetic ordering; whereas undergoes ferrimagnetic-like transition at 106 K originating from spin canting coupling Fe-based Cr-based...
Abstract Weyl semimetal defines a material with three-dimensional Dirac cones, which appear in pair due to the breaking of spatial inversion or time reversal symmetry. Superconductivity is state quantum condensation paired electrons. Turning into superconducting very important having some unprecedented discoveries. In this work, by doing resistive measurements on recently recognized TaP under pressures up about 100 GPa, we show concurrence superconductivity and structure transition at 70...
We report the structural, magnetic, electrical transport properties, and magnetocaloric effect (MCE) of antipervoskite compound AlCMn3. It exhibits a second-order ferromagnetic–paramagnetic phase transition around (TC) 287 K. The electronic resistivity (ρ) shows good metallic behavior except for slope change TC. At lower temperatures (below 130 K), ρ∝T2 indicates that electron-electron scatterings domain. evaluated (130–270 ρ is linear dependence on temperature, implying phonon boost up...
The recent-discovered Sr$_x$Bi$_2$Se$_3$ superconductor provides an alternative and ideal material base for investigating possible topological superconductivity. Here, we report that in Sr$_{0.065}$Bi$_{2}$Se$_3$, the ambient superconducting phase is gradually depressed upon application of external pressure. At high pressure, a second emerges at above 6 GPa, with maximum $T_c$ value $\sim$8.3 K. joint investigations high-pressure synchrotron x-ray diffraction electrical transport properties...
Abstract One of the core issues for multiferroicity is strongly coupled ferroelectric polarization and magnetization, while so far most multiferroics have antiferromagnetic order with nearly zero magnetization. Magnetic spinel compounds ferrimagnetic may be alternative candidates offering large magnetization when ferroelectricity can activated simultaneously. In this work, we investigate magnetism FeCr 2 S 4 in which Fe 2+ sublattice Cr 3+ are antiparallel alignment. Well defined transitions...
We report on the discovery of a pressure-induced topological and superconducting phase SnSe, material which attracts much attention recently due to its superior thermoelectric properties. In situ high-pressure electrical transport synchrotron x-ray diffraction measurements show that superconductivity emerges along with formation CsCl-type structural SnSe above around 27 GPa, maximum critical temperature 3.2 K at 39 GPa. Based ab initio calculations, this is predicted be Dirac line-node (DLN)...
Topological semimetal, a novel state of quantum matter hosting exotic emergent phenomena dictated by the non-trivial band topology, has emerged as new frontier in condensed-matter physics. Very recently, coexistence triply degenerate points crossing and Weyl near Fermi level was theoretically predicted immediately experimentally verified single crystalline molybdenum phosphide (MoP). Here we show this material high-pressure electronic transport synchrotron X-ray diffraction (XRD)...
Abstract Band engineering in layered metal dichalcogenides leads to a variety of physical phenomena and has obtained considerable attention recently. In this work, pressure‐induced metallization superconductivity pristine 1 T ‐SnSe 2 is reported via electrical transport synchrotron X‐ray diffraction experiments. Electrical results show that the emerges above 15.2 GPa followed by appearance superconducting transition at 18.6 GPa. The robust with nearly constant c ≈ 6.1 K between 30.1 50.3...
Band engineering in layered transition metal dichalcogenides (TMDs) leads to a variety of emergent phenomena and has obtained considerable attention recently. Transition ditelluride ${\mathrm{NiTe}}_{2}$ been discovered experimentally be type-II Dirac semimetal at ambient pressure, was predicted display superconductivity the monolayer limit. Here we systematically investigate structural electronic properties under high pressure. Room-temperature synchrotron x-ray diffraction Raman scattering...