A5062318007- Metal and Thin Film Mechanics
- Microstructure and mechanical properties
- High Entropy Alloys Studies
- Magnetic properties of thin films
- High-Temperature Coating Behaviors
- Diamond and Carbon-based Materials Research
- Aluminum Alloys Composites Properties
- Magnetic and transport properties of perovskites and related materials
- Additive Manufacturing Materials and Processes
- Heusler alloys: electronic and magnetic properties
- Ferroelectric and Negative Capacitance Devices
- ZnO doping and properties
- Intermetallics and Advanced Alloy Properties
- Land Use and Ecosystem Services
- Advanced materials and composites
- Soil erosion and sediment transport
- Conservation, Biodiversity, and Resource Management
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Environmental Changes in China
- Advanced Memory and Neural Computing
- Hydrology and Sediment Transport Processes
- High-Velocity Impact and Material Behavior
- Metal Alloys Wear and Properties
- Advanced ceramic materials synthesis
Beijing Normal University
2019-2025
Gannan Normal University
2014-2025
Southern University of Science and Technology
2025
Jinan University
2025
Advanced Processing Technology (United States)
2025
Materials Science & Engineering
2025
Wuhan Textile University
2024-2025
Changchun Institute of Technology
2024
Kunming University of Science and Technology
2012-2024
Jiangsu University of Science and Technology
2017-2024
Giant tunnel magnetoresistance (TMR) ratios of up to 1995% at 4.2 K and 354% 290 were obtained for epitaxial Co2MnSi/MgO/Co2MnSi magnetic junctions (MTJs) featuring a reduced lattice mismatch in the MTJ trilayer by introducing thin Co2MnSi lower electrode deposited on Co50Fe50 buffer layer. The giant TMR can be explained enhanced contribution coherent tunneling originating from increased misfit dislocation spacing upper interfaces with MgO barrier along half-metallicity electrodes.
The influence of off-stoichiometry on the half-metallic character quaternary Heusler alloy thin films Co2(Mn,Fe)Si (CMFS) was investigated by studying composition dependence tunnelling magnetoresistance (TMR) ratio fully epitaxial CMFS/MgO/CMFS magnetic tunnel junctions (CMFS MTJs) having Co2(Mnα'Feβ')Si0.84 electrodes with various Mn and Fe compositions. It found that (Mn + Fe)-rich had higher TMR ratios than ones Fe)-deficient at 4.2 290 K. These results indicate suppression Co antisites...
Fully epitaxial Co2MnSi (CMS)/MgO/CMS magnetic tunnel junctions (MTJs) with various values of Mn composition α in Co2MnαSi electrodes were fabricated and the influence on magnetoresistance (TMR) characteristics these MTJs was investigated. Mn-rich CMS showed TMR ratios, up to 1135% at 4.2 K 236% room temperature for α=1.29, exceeding those having an almost stoichiometric composition. A possible origin higher ratios beyond 1.0 is a decreased density gap states existing around Fermi level...
In order to elucidate the origin of temperature ($T$) dependence spin-dependent tunneling conductance ($G$) magnetic tunnel junctions (MTJs), we experimentally investigated $T$ $G$ for parallel and antiparallel magnetization alignments, ${G}_{\mathrm{P}}$ ${G}_{\mathrm{AP}}$, high-quality $\mathrm{C}{\mathrm{o}}_{2}\mathrm{MnSi}$ (CMS)/MgO/CMS MTJs having systematically varied spin polarizations ($P$) at 4.2 K by varying Mn composition $\ensuremath{\alpha}$ in...
Abstract We demonstrate in-plane field-free-switching spin-orbit torque (SOT) magnetic tunnel junction (MTJ) devices that are capable of low switching current density, fast speed, high reliability, and, most importantly, manufactured uniformly by the 200-mm-wafer platform. The performance is systematically studied, including their properties, behaviors, endurance and data retention. successful integration SOT within manufacturing platform provides a feasible way to industrialize MRAMs. It...
TiMoNbX (X = Cr, Ta, Zr) RHEA coatings were fabricated on TC4 titanium alloy substrate using laser cladding technology. The microstructure and corrosion resistance of the studied by XRD, SEM an electrochemical workstation. results show that TiMoNb series coating was composed a columnar dendrite (BCC) phase, rod-like second needle-like structure equiaxed dendrite, but TiMoNbZr showed high-density defects, similar to those in alloy, which small non-equiaxed dendrites lamellar α'(Ti). In 3.5%...
We demonstrated electrical spin injection from a half-metallic Heusler alloy Co${}_{2}$MnSi electrode into GaAs channel through observation of spin-valve signal and Hanle in the four-terminal nonlocal geometry. Furthermore, we electrically detected nuclear field acting on electron spins, which was produced by dynamic polarization, transient oblique signals. Samples with source exhibited higher spin-injection efficiency larger compared to samples Co${}_{50}$Fe${}_{50}$ source, suggesting that...
We investigated the effect of nonstoichiometry on half-metallic character Heusler alloy Co${}_{2}$MnSi (CMS) through Mn composition (\ensuremath{\alpha}) dependence saturation magnetization per formula unit (${\ensuremath{\mu}}_{s}$) Co${}_{2}$Mn${}_{\ensuremath{\alpha}}$Si${}_{\ensuremath{\beta}}$ thin films and tunneling magnetoresistance (TMR) ratio CMS/MgO/CMS magnetic tunnel junctions (CMS MTJs) having electrodes. As a basis for understanding in CMS, we developed generalized form...
Macrophyte-dominated shallow lakes are one of the commonest freshwater wetlands in plain area, and composed lake, marsh, terrestrial land. They are, however, facing great ecological risks serious pollution wetland degradation caused by shortage water demand. Baiyangdian is largest lake northern China. It importance to ecosystem services Xiongan New Area, China, providing food production, climate regulation other functions. Water storage comprises components marsh land, each which supplies a...