A5103088390- Advanced Condensed Matter Physics
- Magnetic and transport properties of perovskites and related materials
- Multiferroics and related materials
- Physics of Superconductivity and Magnetism
- ZnO doping and properties
- Ga2O3 and related materials
- Gas Sensing Nanomaterials and Sensors
- 2D Materials and Applications
- Copper-based nanomaterials and applications
- Nuclear materials and radiation effects
- Topological Materials and Phenomena
- Advanced Battery Materials and Technologies
- Graphene research and applications
- Silicon Nanostructures and Photoluminescence
- Advancements in Battery Materials
- Advanced Photocatalysis Techniques
- Ferroelectric and Piezoelectric Materials
- Thermal Expansion and Ionic Conductivity
- Glass properties and applications
- Transition Metal Oxide Nanomaterials
- Quantum Dots Synthesis And Properties
- Supercapacitor Materials and Fabrication
- Electronic and Structural Properties of Oxides
- Metal-Organic Frameworks: Synthesis and Applications
- X-ray Diffraction in Crystallography
High Magnetic Field Laboratory
2015-2024
Chinese Academy of Sciences
2015-2024
Hefei Institutes of Physical Science
2008-2023
University of Science and Technology of China
2003-2016
Shanghai Synchrotron Radiation Facility
2011
University of Wisconsin–Milwaukee
2005
Development of efficient and affordable electrocatalysts in neutral solutions is paramount importance for the renewable energy. Herein, we report that oxygen evolution reaction (OER) performance Co3 S4 under conditions can be enhanced by exposed octahedral planes self-adapted spin states atomically thin nanosheets. A HAADF image clearly confirmed active octahedra with Jahn-Teller distortions were exclusively. Most importantly, nanosheets, Co(3+) self-adapt from low-spin to high-spin states....
Abstract Quantum spin liquid (QSL) is a novel state of matter which refuses the conventional freezing even at 0 K. Experimentally searching for structurally perfect candidates big challenge in condensed physics. Here we report successful synthesis new spin-1/2 triangular antiferromagnet YbMgGaO 4 with "Equation missing"<!-- image only, no MathML or LaTex --> sy m metry. The compound an ideal two-dimensional and spatial isotropic magnetic triangular-lattice has site-mixing defects...
Precise detection of low-dose X- and γ-radiations remains a challenge is particularly important for studying biological effects under ionizing radiation, safety control in medical radiation treatment, survey environmental background, monitoring cosmic radiations. We report here photoluminescent uranium organic framework, whose photoluminescence intensity can be accurately correlated with the exposure dose or γ-radiations. This allows precise instant radiations down to level 10-4 Gy,...
By scrutinizing the energy storage process in Li-ion batteries, tuning migration behavior by atomic level tailoring will unlock great potential for pursuing higher electrochemical performance. Vacancy, which can effectively modulate electrical ordering on nanoscale, even tiny concentrations, provide tempting opportunities manipulating migratory behavior. Herein, taking CuGeO3 as a model, oxygen vacancies obtained reducing thickness dimension down to scale are introduced this work. As...
Abstract Development of efficient and affordable electrocatalysts in neutral solutions is paramount importance for the renewable energy. Herein, we report that oxygen evolution reaction (OER) performance Co 3 S 4 under conditions can be enhanced by exposed octahedral planes self‐adapted spin states atomically thin nanosheets. A HAADF image clearly confirmed active octahedra with Jahn–Teller distortions were exclusively. Most importantly, nanosheets, 3+ self‐adapt from low‐spin to high‐spin...
Abstract The semiconducting ferromagnet CrSiTe 3 is a promising candidate for two-dimensional magnet simply by exfoliating down to single layers. To understand the magnetic behavior in thin-film samples and possible applications, it necessary establish nature of magnetism bulk. In this work, critical at paramagnetic ferromagnetic phase transition single-crystalline investigated bulk magnetization measurements. We have obtained exponents ( β = 0.170 ± 0.008, γ 1.532 0.001, δ 9.917 0.008)...
Fe3GeTe2 is a promising candidate for van der Waals bonded ferromagnet because of its high Curie temperature and the prediction that ferromagnetism can maintain upon exfoliating down to single layer. Here, we have reported critical behavior understand ferromagnetic exchange. Based on various techniques including modified Arrott plot, Kouvel-Fisher isotherm analysis, set reliable exponents (β = 0.327 ± 0.003, γ 1.079 0.005, δ 4.261 0.009) has been obtained. The suggests three-dimensional...
For ferromagnets, varying from simple metals to strongly correlated oxides,the critical behaviors near the Curie temperature (TC) can be grouped into several universal classes. In this paper, we report an unusual behavior in manganese nitrides Cu1-xNMn3+x(0.1<x<0.4). Although below TC well described by mean field (MF) theory, robust fluctuations beyond expectations of any classes are observed above x=0.1. The become weaker when x increases, and MF-like is finally restored at x=0.4. addition,...
Abstract Precise detection of low‐dose X‐ and γ‐radiations remains a challenge is particularly important for studying biological effects under ionizing radiation, safety control in medical radiation treatment, survey environmental background, monitoring cosmic radiations. We report here photoluminescent uranium organic framework, whose photoluminescence intensity can be accurately correlated with the exposure dose or γ‐radiations. This allows precise instant radiations down to level 10 −4...
Fabricating a flexible room-temperature ferromagnetic resistive-switching random access memory (RRAM) device is of fundamental importance to integrate nonvolatile and spintronics both in theory practice for modern information technology has the potential bring about revolutionary new foldable information-storage devices. Here, we show that relatively low operating voltage (+1.4 V/-1.5 V, corresponding electric field around 20,000 V/cm) drives dual vacancies evolution ultrathin SnO2...
The room temperature photoluminescence property of ZnO particles embedded in sol–gel silica was investigated. Three emissions at about 3.25 eV (ultraviolet (UV)), 2.8 (blue), and 2.45 (green) were observed. blue green ascribed to interstitial zinc oxygen vacancy defects ZnO. At heating temperatures above 900°C, the interaction with SiO2 gave rise Zn2SiO4, which enhanced emission markedly by limiting oxidation process vacancy. Heating low pressure found enhance UV substantially. effects...
Abstract Research on two-dimensional transition metal dichalcogenides (TMDs) has grown rapidly over the past several years, from fundamental studies to development of next generation technologies. Recently, it been reported that MX 2 -type PdTe exhibits superconductivity with topological surface state, making this compound a promising candidate for investigating possible superconductivity. However, due multi-band feature most TMDs, magnetoresistance and quantum oscillations these TMDs proves...
2-Dimensional (2D) CrPS4 single crystals have been grown by the chemical vapor transport method. The crystallographic, magnetic, electronic and thermal properties of were investigated room-temperature X-ray diffraction, electrical resistivity \r{ho}(T), specific heat CP(T) spin response (ESR) measurements. crystallize into a monoclinic structure. \r{ho}(T) shows semiconducting behavior with an energy gap Ea=0.166 eV. antiferromagntic (AFM) transition temperature is about TN=36 K. flipping...
With the emergence of van der Waals two-dimensional (2D) ferromagnetic materials, ${\mathrm{Fe}}_{3}{\mathrm{GeTe}}_{2}$ (FGT) with a high Curie temperature (${T}_{\mathrm{C}}$) and perpendicular magnetic anisotropy (PMA) provides rich platform for next generation spintronic devices. Up to now, in most 2D magnets-based devices, easiest convenient way obtain thin flakes is still mechanical exfoliation method. However, samples thickness variation occur inevitably during this process, which are...
Since the rise of two-dimensional (2D) semiconductors, it seems that electronic devices will soon be upgraded with spintronics, in which manipulation spin degree freedom endows obvious advantages over conventional charge-based electronics. However, as most crucial prerequisite for above-mentioned expectation, 2D semiconductors adjustable magnetic interaction are still rare, has greatly hampered promotion spintronics. Recently, transition metal phosphates have attracted tremendous interest...
The combination of topology and magnetism has demonstrated great potential in the search emergent quantum matters. In this study, we report synthesis, magnetic, electrical properties GdAuPb, a rare-earth-based half-Heusler topological antiferromagnet candidate. Magnetization specific heat studies reveal highly frustrated antiferromagnetic ordering Gd at TN = 11.5 K. Interestingly, material possesses large, unsaturated magnetoresistance up to 800% below anomalous Hall conductivity as large...
We report an observation of anomalous anisotropic magnetoresistance (AMR) in bilayered La1.2Sr1.8Mn2O7 single crystals. A giant AMR is found to be 80% under a magnetic field 1 T near the metal-insulator transition temperature, where defined as AMR=[ρ(H⊥c)−ρ(H∥c)]/ρ(H⊥c)×100%, and ρ(H⊥c) ρ(H∥c) are resistivity with perpendicular parallel c-axis, respectively. The effect shows strong temperature dependences, indicates close interrelation field-tuned transition.