A5102744859- Magnetic properties of thin films
- Physics of Superconductivity and Magnetism
- Advanced Condensed Matter Physics
- Theoretical and Computational Physics
- Magnetic Properties and Applications
- Cosmology and Gravitation Theories
- Black Holes and Theoretical Physics
- Quantum many-body systems
- Magnetic and transport properties of perovskites and related materials
- ZnO doping and properties
- Quantum Chromodynamics and Particle Interactions
- Nuclear reactor physics and engineering
- Mineralogy and Gemology Studies
- Welding Techniques and Residual Stresses
- Pigment Synthesis and Properties
- Thin-Film Transistor Technologies
- Cultural Heritage Materials Analysis
- Superconducting Materials and Applications
- Orbital Angular Momentum in Optics
- Plasmonic and Surface Plasmon Research
- Additive Manufacturing and 3D Printing Technologies
- Silicon and Solar Cell Technologies
- Data Visualization and Analytics
- Material Dynamics and Properties
- Atomic and Molecular Physics
Jingdezhen Ceramic Institute
2024
Jilin University
2023-2024
South China Normal University
2014-2023
Nanjing University
2008-2023
Collaborative Innovation Center of Advanced Microstructures
2013-2018
Peking University
2018
Hubei Normal University
2016
Chinese Academy of Sciences
2008
International Centre for Materials Physics
2008
Video generation has achieved significant advances through rectified flow techniques, but issues like unsmooth motion and misalignment between videos prompts persist. In this work, we develop a systematic pipeline that harnesses human feedback to mitigate these problems refine the video model. Specifically, begin by constructing large-scale preference dataset focused on modern models, incorporating pairwise annotations across multi-dimensions. We then introduce VideoReward, multi-dimensional...
The controllable magnetic skyrmion motion represents a highly concerned issue in preparing advanced skyrmion-based spintronic devices. Specifically, magnon-driven can be easily accessible both metallic and insulating magnets, thus is preferred over electric current control further for the ultra-low energy consumption. In this work, we investigate extensively dynamics of driven by magnon an antiferromagnet using collective coordinate theory, focusing on effect polarization. It revealed that...
A theoretical study on the dynamics of an antiferromagnetic (AFM) skyrmion is indispensable for revealing underlying physics and understanding numerical experimental observations. In this work, we present a reliable treatment spin current induced motion AFM in absence presence pinning defect. For ideal system free defect, velocity as function intrinsic parameters can be derived, based concept that profile agrees well with 360 domain wall formula, leading to explicit description dynamics....
The optical vortex, an beam carrying orbital angular momentum (OAM), has been demonstrated to be promising in manipulating magnetic structure and its dynamics various systems. In this work, by using numerical analytical methods, we investigate the vortex control of ultrafast skyrmion antiferromagnets. It is shown that isolated can generated/erased ultrashort time $\ensuremath{\sim}\mathrm{ps}$ focusing through Zeeman effect. Subsequently, OAM transferred results rotation. Different from case...
In this work, we investigate the phase transitions and critical behaviors of frustrated ${J}_{1}\ensuremath{-}{J}_{2}\ensuremath{-}{J}_{3}$ Ising model on square lattice using Monte Carlo simulations, particular attention goes to effect second-next-nearest-neighbor interaction ${J}_{3}$ transition from a disordered state single stripe antiferromagnetic state. A continuous Ashkin-Teller--like behavior in certain range is identified, while four-state Potts-critical end point...
Abstract It is known that the electro-transport and magnetism of perovskite alkaline-earth ruthenate oxides are sensitive to lattice distortion associated with A-site cation size. Orthorhombic CaRuO 3 cubic BaRuO exhibit distinctly different magnetic properties from orthorhombic SrRuO . has been suggested can be robust against some intrinsic/external perturbations but fragile others in terms it our motivation explore such stability local site disorder. In this work, we prepare a set -based...
Searching for new methods controlling antiferromagnetic (AFM) domain wall is one of the most important issues AFM spintronic device operation. In this work, we study theoretically motion an nanowire, driven by axial anisotropy gradient generated external electric field, allowing electro control in merit ultra-low energy loss. The velocity depending on magnitude and intrinsic material properties simulated based Landau-Lifshitz-Gilbert equation also deduced using dissipation theorem. It found...
We study $T\overline{T}$-deformed $O(N)$ scalar field theory in two-dimensional spacetime using the functional renormalization group. derive $\ensuremath{\beta}$ functions for couplings system and explore fixed points. In addition to Gaussian (trivial) point, we find a nontrivial point at which new universality class exists. The deformation parameter becomes relevant point. Therefore, could be defined as nonperturbatively renormalizable theory.
In this work, we derive the Landau-Lifshitz-Bloch equation accounting for multidomain antiferromagnetic (AFM) lattice at finite temperature, in order to investigate domain wall motion, core issue AFM spintronics. The continuity of staggered magnetization is obtained using continuum approximation, allowing an analytical calculation dynamics. influence temperature on static profile investigated, and calculations agree well with numerical simulations temperature-gradient-driven confirming...
In this work, the magnetic states in ultrathin nanostructures are investigated using Monte Carlo simulation, based on a Heisenberg model involving short-range exchange coupling, long-range dipole-dipole interaction, and perpendicular anisotropy. An intriguing thermally driven structural transition from stripe domain to flux closure (planar vortex) state, accompanied by an apparent thermal hysteresis effect typical characteristics of first-order phase transition, is revealed. Furthermore, it...
Based on the uniaxially anisotropic Heisenberg model, we investigated frequency dispersion of dynamic hysteresis for an exchange-biased ferromagnetic core/antiferromagnetic shell nanoparticle using Monte Carlo simulation. The shows both spin-reversal resonance and spin-tilting resonance. power-law scaling behaviors over low-frequency high-frequency regimes are demonstrated, it is shown that exchange coupling core/shell interface has no effect dispersion. bias insignificant either.
We study the thermal phase transition of fourfold degenerate phases (the plaquette and single-stripe states) in two-dimensional frustrated Ising model on Shastry-Sutherland lattice using Monte Carlo simulations. The critical Ashkin-Teller-like behavior is identified both region region. four-state Potts end points differentiating continuous transitions from first-order ones are estimated based finite-size-scaling analyses. Furthermore, a similar to also observed anisotropic triangular model....
We investigate the transitions of spin configurations in ultrathin nanostructures by tuning perpendicular anisotropy (Kz) and out-of-plane magnetic field (H), using Monte Carlo simulation. It is revealed that enhancing Kz can drive evolution in-plane vortex state into intriguing saturated magnetization states under various H, such as bubble domain quadruple-block-domain etc. The these exhibit remarkable H-dependence. In addition, strong effects geometry size on are observed. particular, a...
A bstract We propose a hybrid inflationary scenario based on eight-flavor hidden QCD with the colored fermions being in part gauged under U(1) B−L . This is almost scale-invariant, so-called walking, and predicts light scalar meson (the walking dilaton) associated spontaneous scale breaking, which develops Coleman-Weinberg (CW) type potential as consequence of nonperturbative anomaly, hence plays role an inflaton small-field inflation. The Higgs coupled to dilaton inflaton, dynamically...
An enhancement of cross section for e(+) e(-) -> Lambda(+)(c)(Lambda) over bar (-)(c) pair production near their threshold provides an opportunity to study the charm baryon Lambda(+)(c)/(Lambda) at a tau-charm factory with collisions. We estimate prospects searching CP violation in decays Lambda c+ Lambda(+)(pi) and (Lambda) (-)(pi). Helicity amplitude analysis shows that asymmetry parameters, alpha(+)(Lambda c) alpha((Lambda) barc-), can be directly accessed by looking angular proton...
The dynamical effects on electron-positron pair creation from a vacuum caused by the switching processes of super-critical well potential are investigated in detail. results show that only when and off time both increase will final yield converge to integer embedded bound states nearly exponentially. But single adiabatic or cannot lead an yield. If is turned abruptly, associated with discrete states, there multi-frequency oscillation around number's saturation. slowly can suppress amplitude...
The Kitaev model on the honeycomb lattice has been receiving substantial attention due to discovery of quantum spin liquid state associated with this model. Consequently, its classical partners such as Kitaev-Heisenberg (KH) and phase transitions become concerned. Specifically, an intermediate Kosterlitz-Thouless (KT) engaged in transition from high-temperature ($T$) disordered low-$T$ sixfold degenerate is predicted isotropic KH [Phys. Rev. Lett. 109, 187201 (2012)], but so far no...
We study $T\bar{T}$-deformed $O(N)$ scalar field theory in two-dimensional spacetime using the functional renormalization group. derive $\beta$ functions for couplings system and explore fixed points. In addition to Gaussian (trivial) point, we find a nontrivial point at which new universality class exists. The deformation parameter becomes relevant point. Therefore, $T\bar T$-deformed could be defined as nonperturbatively renormalizable theory.