A5101836478- 2D Materials and Applications
- Magnetic properties of thin films
- Graphene research and applications
- Magnetic and transport properties of perovskites and related materials
- Multiferroics and related materials
- Topological Materials and Phenomena
- Advanced Memory and Neural Computing
- MXene and MAX Phase Materials
- Physics of Superconductivity and Magnetism
- Advanced Condensed Matter Physics
- Perovskite Materials and Applications
- Metamaterials and Metasurfaces Applications
- Rare-earth and actinide compounds
- Radiation Detection and Scintillator Technologies
- Thermal Expansion and Ionic Conductivity
- Nuclear Physics and Applications
- Nanocluster Synthesis and Applications
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- X-ray Spectroscopy and Fluorescence Analysis
- Quantum and electron transport phenomena
- ZnO doping and properties
- Nuclear physics research studies
- Heusler alloys: electronic and magnetic properties
Anhui University
2024-2025
Institute of Solid State Physics
2023-2024
Tongji University
2011-2024
University of North Carolina Wilmington
2014
China Institute of Atomic Energy
2011
Fudan University
2011
High precision measurements of the differential cross sections for π0 photoproduction at forward angles two nuclei, 12C and 208Pb, have been performed incident photon energies 4.9-5.5 GeV to extract π0→γγ decay width. The experiment was done Jefferson Lab using Hall B tagger a high-resolution multichannel calorimeter. width extracted by fitting measured recently updated theoretical models process. resulting value is Γ(π0→γγ)=7.82±0.14(stat)±0.17(syst) eV. With 2.8% total uncertainty, this...
For L10 FePt films, the anomalous Hall conductivity σxy=−aσxx−b, where a=a0f(T), b=b0f(T), and f(T) is temperature dependence factor of spontaneous magnetization. With increasing chemical long range ordering S, a0 changes its sign accompanied by a reduction magnitude b0 increases monotonically. The spin-orbit coupling strength suggested to increase with S. As an approach, can be used control effect in ferromagnetic alloy films.
The spin absorption of the CoGd layer spontaneously formed at Co/Gd interface enhances spin-dependent transport in Pt/Co/Gd/Ir multilayers.
Multiferroic materials, including tunable ferrovalley characteristics and band topology, enabled by ferroelectric control at the nanoscale, possess significant potential for technology advances in next-generation magnetoelectric spintronic applications. However, realization of this fascinating multifunctionality nanoscale systems with perpendicular magnetic anisotropy remains unexplored. Here, we propose a class van der Waals multiferroic heterostructures comprising ferromagnetic,...
We have studied electric and thermal transport properties in two-dimensional van der Waals ferromagnetic ${\mathrm{Fe}}_{3}{\mathrm{GeTe}}_{2}$. The low-temperature longitudinal resistivity measured the $ab$ plane is contributed by impurity scattering, quantum correction, electron-electron interaction. Meanwhile, specific heat consists of linear cubic temperature terms, corresponding to contributions electrons phonons, respectively. Therefore, heavy-fermion state...
The manipulation of spin textures by currents is fundamental and technological interest. A particularly interesting system the 2D van der Waals ferromagnet Fe3GeTe2, in which Néel-type skyrmions have recently been observed. origin these chiral considerable Recently, it was proposed that derive from defects structure lower symmetry allow for a bulk vector Dzyaloshinsky-Moriya interaction. Here, we demonstrate current-induced domain wall motion Fe3GeTe2 flakes, maximum velocity an order...
Solid-state refrigeration leveraging the magnetocaloric effect (MCE) presents a sustainable and energy-efficient alternative to traditional gas compression technologies. However, practical utility of most materials is restricted by their narrow operational temperature window. In this work, stable across an ultrawide range 146–320 K was achieved in Hf0.85Ta0.15Fe2 magnet via hydrostatic pressure manipulation. Furthermore, underlying mechanism for extended MCEs under has been revealed...
Abstract The emerging interest in topological magnetism has ignited exciting vitality the field of spintronics, thereby offering a promising route for breaking Moore's law constraints and establishing an efficient information storage model. Unlike conventional 2D cell based on macroscopic magnetization, magnetic skyrmions—the representative magnetism—are considered candidates realizing 3D memory, such as “racetrack memory,” facilitating development spintronics. Since discovery...
A tremendous amount of research has witnessed the exploration two-dimensional (2D) materials with intrinsic ferromagnetism and diverse physical properties. However, low Curie temperature deficient magnetic anisotropy hinder their practical applications in nanoscale spintronics. Based on first-principles calculations, we propose a new family 2D ternary transition metal tellurides, CrX2Te4 (X = Al, Ga, In), both structural stabilities at room temperature. Our calculations demonstrate that...
As a host for exchange bias (EB), van der Waals (vdW) magnetic materials have exhibited intriguing and distinct functionalities from conventional materials. The EB in most vdW systems is far below room temperature, which poses challenge practical applications. Here, by using Kerr microscopy, we demonstrate record-high blocking temperature that approaches huge positive field nears 2 kOe at 100 K naturally oxidized two-dimensional (2D) ferromagnetic Fe
Two-dimensional (2D) transition metal dichalcogenides with 2H-phases, as a unique platform of valleytronics, display valley polarization and the well-known anomalous Hall effect when stacking 2D magnetic substrates. In this study, we employ first-principles calculations to investigate states, band structures, proximity-dependent properties van der Waals heterostructures Cr2Ge2Te6/2H-MX2 (M = Mo, W, X S, Se, Te). Our findings reveal that possess stacking-dependent spontaneous well pristine...
Abstract Strong Dzyaloshinskii–Moriya interaction (DMI) and topological spin textures in two‐dimensional (2D) magnetic materials hold great potential for novel spin‐based information storage processing. The current research efforts on magnetism are highly limited by insufficient strength, resulting a narrow temperature‐external field (T‐B) phase diagram window. In this study, 2D Janus Cr 2 X 3 Y (X = Cl, Br, I; S, Se, Te) monolayers investigated employing first‐principles calculations atomic...
Topological spin textures are of great significance in magnetic information storage and spintronics due to their high density low drive current. In this work, the transformation configuration from chaotic labyrinth domains uniform stripe was observed MnFe
Abstract Zero thermal expansion (ZTE) alloys are critically needed in sophisticated modern industries, including telescope manufacturing, satellite technology, and semiconductor production, owing to their exceptional dimensional stability. In this study, high‐performance ZTE with a negligible coefficient of α v = 2.7 ppm K −1 over broad temperature range 10–220 is discovered ErCo 2.8 Fe 0.2 magnet. Owing an unconventional sublattice‐magnetovolume effect the Er atoms, negative Fe‐substituted...
We investigate the spin Hall mechanism and spin–orbit torque (SOT) efficiency in Ta/CoFeB/MgO heterostructures with varying Ta crystalline phases. The phase, specifically (α + β) mixed phase β is achieved by controlling sputtering power (PTa) during deposition. observe a negative temperature coefficient of resistivity for deposited at PTa ≥ 40 W, which corresponds to Ta. Our phenomenological scaling law analysis reveals significant contribution skew scattering effect (SHE) Furthermore, we...
Current-induced spin–orbit torque (SOT) switching is an efficient manipulation of noncollinear antiferromagnet states with exotic topological transport properties. However, stable the spin chirality still challenging, and role symmetry in SOT-driven unclear. Here, we introduce asymmetric interfacial Dzyaloshinskii–Moriya interaction (DMI) by varying value one DMI vectors ([Formula: see text]. By using atomistic model, it shown that Mn 3 Ir monolayer, chiral driven SOT can be realized. In...
The van der Waals (vdW) ferromagnet ${\mathrm{Fe}}_{3}{\mathrm{GeTe}}_{2}$ (FGT) has recently attracted much attention due to its fruitful physical phenomena. In this paper, by varying the thickness of FGT nanoflakes, relationship between anomalous Hall conductivity (AHC) ${\ensuremath{\sigma}}_{\text{AH}}$ and sheet electric ${\ensuremath{\sigma}}_{xx}$ in is found follow ${\ensuremath{\sigma}}_{\text{AH}}\ensuremath{\propto}{\ensuremath{\sigma}}_{xx}^{\ensuremath{\gamma}}$, where...