A5022022303- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Electronic and Structural Properties of Oxides
- Heusler alloys: electronic and magnetic properties
- Ion-surface interactions and analysis
- ZnO doping and properties
- Magnetic properties of thin films
- Magnetic Properties of Alloys
- 2D Materials and Applications
- Nonlinear Optical Materials Studies
- Transition Metal Oxide Nanomaterials
- Advanced Memory and Neural Computing
- MXene and MAX Phase Materials
- Advanced Battery Technologies Research
- Advanced Thermoelectric Materials and Devices
- Quantum Dots Synthesis And Properties
- Gas Sensing Nanomaterials and Sensors
- Advanced Battery Materials and Technologies
- Thermal properties of materials
- Rare-earth and actinide compounds
- Physics of Superconductivity and Magnetism
- Photorefractive and Nonlinear Optics
- Metallurgy and Cultural Artifacts
- Phase-change materials and chalcogenides
- Ga2O3 and related materials
Wuhan University of Science and Technology
2013-2024
Chinese Academy of Sciences
2005-2007
Institute of Physics
2005
Half-metallic chromium dioxide (CrO2) is an ideal spintronic material due to its near-full spin polarization and ultralow Gilbert damping at room temperature. Based on theoretical calculations, we found that the tunneling magnetoresistance (TMR) ratios of CrO2/XO2/CrO2 (X= Ti Sn) magnetic tunnel junctions (MTJs) can reach up order magnitude 105%, (MR) ratio CrO2/RuO2/CrO2 (MJs) 104%. In addition, succeeded in fabricating epitaxial CrO2-based MTJs (CrO2/TiO2/CrO2 CrO2/TiO2/Co2FeAl) with TiO2...
We investigate the effects of strain and film thickness on coercivity La0.67Ca0.33MnO3 films grown SrTiO3 LaAlO3 substrates. Textured microstructure with grain [001] pseudo-cubic axis normal to surface is obtained. The average size decreases decreasing t. magnetic anisotropy depends upon substrate-induced strain. Firstly, intrinsic iHC increases as t varies from 5 nm 10 nm, then attains a maximum at t~ 10–25nm. A further increase in yields gradual reduction ofiHC. By analysis dependence...
The coherent exciton plays an important role in the photosynthetic primary process, and its functions are deeply dependent on orientation arrangements of local transition dipole moments (TDMs). We theoretically systematically study physical property at different TDMs circular light-harvesting (LH) complexes. Especially, if different, delocalized excitons energy locations optically active (OACEs) can be obviously then there more manners to capture, store transfer light between LH Similarly,...
A manganite p–n heterojunction composed of La0.67Sr0.33MnO3 film and 0.05 wt% Nb-doped SrTiO3 substrate is fabricated. Rectifying behavior the junction well described by Shockley equation observed, transport properties interface are experimentally studied. satisfactorily logarithmic linear dependence resistance on temperature observed in a range 150 K–380 K, relation between bias activation energies deduced from R−1/T curves observed. According to energy, interfacial barrier obtained, which 0.91 eV.
An oxide p—n heterojunction composed of Pr0.6Ca0.4MnO3 film, with a charge order (CO) transition, and 1wt% Nb-doped SrTiO3 substrate is fabricated, the transport properties interface are experimentally studied. The rectifying behavior junction, well described by Newman equation, observed, indicating that tunneling dominant process which carriers pass through interface. Above below CO transition temperature, satisfactory linear dependencies junction resistance on temperature but slopes two...
La_0.67Ca_0.33Mn_O.3 films with thickness between 25 and 400nm were fabricated on (001)SrTiO_3 (001)LaAlO_3 substrates, using pulsed laser deposition. The magnetization resistivity ρ of the fil ms studied as functions thickness. reduction t causes decrease Curie temperature T_C in addition to increase films. Com pared compressive strain La_0.67Ca_0.33Mn_O.3/La AlO_3 films, tensile La_0.67Ca_0.33Mn_O.3/SrTiO_3 a faster t, larger value ρ_０. low_temperature is found follow well ρ=ρ_0+Bω_s/sin...
Temperature dependence on rectifying and photoelectronic properties of La0.67Sr0.33MnO3/Nb:SrTiO3 (LSMO/STON) junctions with the thickness values LSMO film varying from 1 nm to 54 are systematically studied. As shown experimentally, exhibit good properties. The significant differences in photoemission property among LSMO/STON observed. For junction a thicker film, photocurrent shows monotonic growth when temperature decreases 300 K 13 K. While for an ultrathin behaviors more complicated....
An oxide p–n heterojunction composed of a 150-nm La0.67Ca0.33MnO3 (LCMO) film, 0.05 wt% Nb doped SrTiO3 substrate (STON), and sandwiched 5-nm LaAlO3 (LAO) thin film is fabricated with the pulsed laser deposition technique interfacial transport properties are experimentally studied. The rectifying behavior junction in agreement Newman's equation, indicating that tunneling dominant process for carriers to pass through interface while thermal emission model an LCMO/STON no LAO buffer layer.