Lei Guo

ORCID: 0000-0003-3610-1826
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Research Areas
  • High Entropy Alloys Studies
  • Magnetic properties of thin films
  • Magnetic and transport properties of perovskites and related materials
  • Iron and Steelmaking Processes
  • Advanced materials and composites
  • Metal and Thin Film Mechanics
  • Additive Manufacturing Materials and Processes
  • Metallurgical Processes and Thermodynamics
  • 2D Materials and Applications
  • High-Temperature Coating Behaviors
  • Magnetic Properties of Alloys
  • MXene and MAX Phase Materials
  • Granular flow and fluidized beds
  • Magnetic Properties and Applications
  • Physics of Superconductivity and Magnetism
  • Advanced Condensed Matter Physics
  • Quantum, superfluid, helium dynamics
  • Minerals Flotation and Separation Techniques
  • Thermochemical Biomass Conversion Processes
  • Intermetallics and Advanced Alloy Properties
  • High-pressure geophysics and materials
  • Boron and Carbon Nanomaterials Research
  • Iron-based superconductors research
  • Titanium Alloys Microstructure and Properties
  • Evacuation and Crowd Dynamics

University of Science and Technology Beijing
2015-2024

Yunnan University
2021-2023

Shanghai Institute of Ceramics
2022

Chinese Academy of Sciences
2022

Southeast University
2020

Shenzhen Institutes of Advanced Technology
2019

Center for Assessment
2019

Centre of Excellence for Advanced Materials
2018

Tokyo Institute of Technology
2015-2016

Beijing Normal University
2014

Recently, a novel medium-entropy transition-metal (TM) carbide (TiZrHf)C has been synthesized with high flexural strength. However, the underlying mechanisms responsible for its outstanding properties are not well understood. Herein, crystal, mechanical, electronic and thermodynamic of systematically investigated by first-principles density functional theory (DFT) calculations. The obtained results reveal that structure is stable in pressure range 0 GPa–100 GPa. elemental random distribution...

10.1016/j.rinp.2022.105341 article EN cc-by-nc-nd Results in Physics 2022-02-15

Permalloy with a body-centered-cubic structure has been grown on GaAs(001) by molecular beam epitaxy. Its magnetism, Curie temperature, and magnetic anisotropy are determined experimentally compared to those of conventional face-centered-cubic Permalloy. Unexpectedly the vanishing cubic in is found be independent its atomic but depends only upon stoichiometry Fe Ni ${\mathrm{Fe}}_{x}{\mathrm{Ni}}_{1\ensuremath{-}x}$ alloy. This observation further investigated confirmed first-principles...

10.1103/physrevlett.97.067203 article EN Physical Review Letters 2006-08-09

Multicomponent carbides have recently received considerable interest because of their remarkable material properties and vast composition space compared to traditional carbides. However, the underlying physical mechanisms multicomponent remain poorly understood, particularly involving high pressure temperature applications. Herein, impacts on stability, mechanical, thermophysical (TiZrTa)C are explored evaluated by density functional theory (DFT) computations. The study demonstrates that is...

10.1016/j.jmrt.2023.01.194 article EN cc-by-nc-nd Journal of Materials Research and Technology 2023-02-02

MAX phases refer to a class of transition metal carbides or nitrides with layered hexagonal structure, general chemical formula Mn+1AXn, where M denotes group elements, A the 13th and 14th X carbon (C) nitrogen (N) element. can be used as precursor for two-dimensional (2D) MXenes. The phase preparing MXenes are research frontier electrochemical energy storage materials. Recently, new kind multicomponent has been synthesized attracted considerable attention. However, physical material...

10.1016/j.jmrt.2022.06.040 article EN cc-by Journal of Materials Research and Technology 2022-06-14

Understanding the nature of magnetic-field-induced precipitation behaviors represents a major step forward towards unravelling real interesting phenomena in Fe-based alloys and especially solving key materials problem for development fusion energy. Experimental results indicate that applied high magnetic field effectively promotes M23C6 carbides. We build an integrated method, which breaks through limitations zero temperature external field, to concentrate on dependence stability induced by...

10.1038/s41598-018-20910-3 article EN cc-by Scientific Reports 2018-02-08

Abstract In solids, charge polarity can one-to-one correspond to spin phenomenologically, e.g., ferroelectricity/ferromagnetism, antiferroelectricity/antiferromagnetism, and even dipole-vortex/magnetic-vortex, but ferrielectricity/ferrimagnetism kept telling a disparate story in microscopic level. Since the definition of dipole involves more than one ion, there may be multiple choices for unit, which makes most ferrielectric orders equivalent ferroelectric ones, i.e., this ferrielectricity...

10.1038/s41535-020-00252-y article EN cc-by npj Quantum Materials 2020-07-23

10.1007/s12613-020-2210-1 article EN International Journal of Minerals Metallurgy and Materials 2021-12-26

摘要:

10.3724/sp.j.1041.2014.01923 article KO Acta Psychologica Sinica 2014-01-01

Abstract The magnetic exchange bias (EB) effect is one of the representative interlayer coupling phenomena and widely utilized in numerous technological applications. However, its mechanism still elusive even a simple bilayered system because complex interface orders. Van der Waals (vdW) layered materials may provide an essential platform for deeply understanding detailed EB owing to ideal structure. Here we first observed positive exchange-biased anomalous Hall with hopping switching...

10.1088/2053-1583/ac456f article EN 2D Materials 2021-12-21

The ground collapse disaster in Shenzhen is an urban disaster. Although the impact of a single accident small, degree harm cannot be ignored because it mostly distributed areas with high population concentration. In 2013-2018, total 1333 accidents occurred Shenzhen, causing 7 deaths and 9 injuries. estimated property loss was nearly 160 million Yuan. It seriously affected people's lives property. At same time, according to statistics, mainly on municipal roads, accounting for about 40-50%....

10.1190/smct-2019-16.1 article EN 2019-10-18

Spin-orbit interaction (SOI) offers a nonferromagnetic scheme to realize spin polarization through utilizing an electric field. Electrically tunable SOI electrostatic gates have been investigated, however, the relatively weak and volatile tunability limit its practical applications in spintronics. Here, we demonstrate nonvolatile electric-field control of via constructing ferroelectric Rashba architectures, i.e., 2D Bi2O2Se/PMN-PT field effect transistors. The experimentally observed...

10.1103/physrevapplied.18.044073 article EN Physical Review Applied 2022-10-28

Fire-fighting robot plays an important role in the construction of unmanned substations and guaranteeing fire safety substations. In order to provide various fire-extinguishing mediums such as dry powder, firewater foam for substation firefighting robots, supply scheme medium is designed this paper. A standard powder tank installed on body store which convenient quick replacement, so efficiency can be increased. equipment water by connecting with robot. The mixing proportion foaming agent...

10.1117/12.2626528 article EN 2021-12-17

The coal‐based flash ironmaking furnace is designed to industrialize the novel technology (FIT), which recognized as a cleaner and efficient alternative process. To realize gas‐particle contact, researchers use cocurrent downer reduce bonding, reactor structure has significant effect on flow pattern. Herein, 3D computational fluid dynamics (CFD) model developed obtain an in‐depth understanding of geometry parameters, including ore feeding position ( r / R ), shaft diameter D...

10.1002/srin.202100407 article EN steel research international 2021-10-27

What is the effect of structural length scale on ordering 3He films? NMR experiments magnetism second layer Grafoil in low field limit found ferromagnetic for coverages over 20 atoms/nm2. Finite temperature phase transitions are prohibited 2D when only Heisenberg interactions present. However a two‐dimensional magnetic film can be result transition caused by weak anisotropy and/or dipolar interactions, or could less interesting manifestation finite size effects. By replacing with ZYX grade...

10.1063/1.2354716 article EN AIP conference proceedings 2006-01-01
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