A5103013909- Rare-earth and actinide compounds
- Iron-based superconductors research
- Nanoparticles: synthesis and applications
- Advanced Condensed Matter Physics
- High-pressure geophysics and materials
- Magnetic and transport properties of perovskites and related materials
- ZnO doping and properties
- Spectroscopy and Chemometric Analyses
- Heusler alloys: electronic and magnetic properties
- Advanced Fiber Laser Technologies
- Physics of Superconductivity and Magnetism
- Spectroscopy Techniques in Biomedical and Chemical Research
- Crystal Structures and Properties
- Electrochemical sensors and biosensors
- Inorganic Chemistry and Materials
- Advanced Photonic Communication Systems
- Advanced Nanomaterials in Catalysis
- Microplastics and Plastic Pollution
- Environmental Toxicology and Ecotoxicology
- Diamond and Carbon-based Materials Research
- Electrochemical Analysis and Applications
- Ocean Acidification Effects and Responses
- Optical Network Technologies
- Analytical Chemistry and Sensors
- Listeria monocytogenes in Food Safety
Chinese Academy of Fishery Sciences
2012-2023
Qingdao National Laboratory for Marine Science and Technology
2017-2023
Laoshan Laboratory
2023
Harvard University
2023
Guangxi Agricultural Machinery Research Institute
2023
Center for High Pressure Science and Technology Advanced Research
2018-2022
Institute of Physics
2015-2022
Chinese Academy of Sciences
2014-2022
Center for High Pressure Science & Technology Advanced Research
2018-2021
University of Chinese Academy of Sciences
2017-2019
We report high-pressure synthesis of chromium monoboride (CrB) at 6 GPa and 1400 K. The elastic plastic behaviors have been investigated by hydrostatic compression experiment micro-indentation measurement. CrB is elastically incompressible with a high bulk modulus 269.0 (5.9) exhibits Vickers hardness 19.6 (0.7) under the load 1 kg force. Based on first principles calculations, observed mechanical properties are attributed to polar covalent Cr-B bonds interconnected strong zigzag B-B bonding...
Metal-to-insulator transitions (MITs) are a dramatic manifestation of strong electron correlations in solids1. The insulating phase can often be suppressed by quantum tuning, i.e. varying nonthermal parameter such as chemical composi- tion or pressure, resulting zero-temperature transition (QPT) to metallic state driven fluctuations, contrast conventional thermal fluctuations. Theories exotic phenomena known occur near the Mott QPT criticality and high-temperature superconductivity assume...
We have studied the atomic and magnetic structure of dilute ferromagnetic semiconductor system (Ba,K)(Zn,Mn)$_2$As$_2$ through pair distribution function analysis temperature-dependent x-ray neutron total scattering data. detected a change in curvature unit cell volume average tetragonal crystallographic at temperature coinciding with onset order. also observed existence well-defined local orthorhombic on short length scale $\lesssim 5$ \AA, resulting rather asymmetrical environment Mn As...
In the present study, trophic transfer of TiO<sub>2</sub> NPs from marine microalga <italic>Nitzschia closterium</italic> to scallop <italic>Chlamys farreri</italic> was investigated. over potential risk and environmental impact manufactured nanoparticles (NPs) have increased in environments.
The voltammetric responses of diethylstilbestrol (DES) and malachite green (MG) were investigated at the conductive carbon black paste electrode (CCBPE), which exhibited an attractive electroanalytical ability. mechanisms reactions studied. And experimental parameters influencing two species, including supporting electrolyte, pH, accumulation time potential, etc., optimized. Based on results, a simple rapid method for detecting DES MG simultaneously was established. Under optimal conditions,...
Y2CoRuO6 was synthesized as a B-site ordered double perovskite with distorted monoclinic P21/n symmetry and an average tilting of the CoO6 RuO6 octahedra ψ̅ = 19.7°. DC magnetization measurements show ferrimagnetic transition at around 82 K. Although long-range ferrimagntic order is supported by neutron diffraction studies, aging phenomena in time-dependent isothermal magnetization, frequency dependence AC susceptibility, smeared peak specific heat together reveal spin glass-like dynamics....
We report the synthesis and characterization of a new bulk diluted ferromagnetic semiconductor via Na Mn co-doping in SrCd2As2 with hexagonal CaAl2Si2-type structure. Together carrier doping (Sr,Na) substitution, spin (Cd,Mn) substitution results order Curie temperature TC up to 13 K. Negative magnetoresistance is assigned weak localization at low temperatures, where magnetization samples becomes saturated. The structure (Sr1−xNax)(Cd1−xMnx)2As2 can be acted as promising candidate for...
Abstract We report the discovery of a new fluoride-arsenide bulk diluted magnetic semiconductor (Ba,K)F(Zn,Mn)As with tetragonal ZrCuSiAs-type structure which is identical to that “1111” iron-based superconductors. The joint hole doping via (Ba,K) substitution & spin (Zn,Mn) results in ferromagnetic order Curie temperature up 30 K and demonstrates interactions between localized spins are mediated by carriers. Muon relaxation measurements confirm intrinsic nature long range entire volume...
Valence transition could induce structural, insulator-metal, nonmagnetic-magnetic and superconducting transitions in rare-earth metals compounds, while the underlying physics remains unclear due to complex interaction of localized $4f$ electrons as well their coupling with itinerant electrons. The valence elemental metal europium (Eu) still has remained a matter debate. Using resonant x-ray emission scattering diffraction, we pressurize states Eu study its structure up 160 GPa. We provide...
We report the synthesis and characterization of a series bulk forms diluted magnetic semiconductors Li(Zn1-x-yCoxMny)As with crystal structure close to that III-V semiconductor (Ga,Mn)As. No ferromagnetic order occurs single (Zn,Co) or (Zn, Mn) substitution in parent compound LiZnAs. Only co-doped Co Mn ordering can occur at Curie temperature ∼40 K. The maximum saturation moment this system reached 2.17μB/Mn, which is comparable Li (Zn,Mn)As. It first time co-doping into Zn sites achieved...
Metallic nanoparticles (NPs) are increasingly being used and inevitably entering the marine environment. Therefore, adverse effects of NPs on individual species have attracted increasing attentions. However, to date, ecological risks ecosystem remain poorly understood. In this study, sensitivity distributions (SSDs) were constructed for Ag, ZnO, CuO, TiO 2 understand their ecotoxicity contribution size effect ion nanotoxicity. Furthermore, a case study assessment risk environment carrying...
This research explored the feasibility of early warning and diagnostic visualization Sclerotinia infected tomato by using hyperspectral imaging technology. Healthy plants with sclerotiorum were cultivated, images at 400-1000 nm collected from healthy leaves 1, 3, 5, 7 days incubation. After preprocessing spectra first derivative (FD), second (SD), standard normal variant (SNV), multiplicative scatter correction (MSC) partial least squares discriminant analysis (PLS-DA) support vector machine...
Abstract The intertwined charge, spin, orbital, and lattice degrees of freedom could endow 5 d compounds with exotic properties. Current interest is focused on electromagnetic interactions in these materials, whereas the important role geometry remains to be fully recognized. For this sake, we investigate pressure-induced phase transitions spin-orbit Mott insulator Sr 3 Ir 2 O 7 Raman, electrical resistance, x-ray diffraction measurements. We reveal an interesting magnetic transition...
The layered semiconductor BaFZnAs with the tetragonal ZrCuSiAs-type structure has been successfully synthesized. Both in-situ high-pressure synchrotron x-ray diffraction and Raman scattering measurements demonstrate that of is stable under pressure up to 17.5 GPa at room temperature. resistivity magnetic susceptibility data show a non-magnetic semiconductor. recommended as candidate host material diluted
Weakened EPS protection of algal cells contributing to the increased internalization TiO 2 nanoparticles was identified as key mechanism for enhanced toxicity under UV-B irradiation.
By directly altering microscopic interactions, pressure provides a powerful tuning knob for the exploration of condensed phases and geophysical phenomena. The megabar regime represents an exciting frontier, where recent discoveries include novel high-temperature superconductors, as well structural valence phase transitions. However, at such high pressures, many conventional measurement techniques fail. Here, we demonstrate ability to perform local magnetometry inside diamond anvil cell with...
Analogous to 2D layered transition-metal dichalcogenides, the TlSe family of quasi-one dimensional chain materials with Zintl-type structure exhibits novel phenomena under high pressure. In present work, we have systematically investigated high-pressure behavior TlInTe2 using Raman spectroscopy, synchrotron X-ray diffraction (XRD), and transport measurements, in combination first principles crystal prediction (CSP) based on evolutionary approach. We found that undergoes a pressure-induced...