A5087632876- Electronic and Structural Properties of Oxides
- Magnetic and transport properties of perovskites and related materials
- Magnetic properties of thin films
- Physics of Superconductivity and Magnetism
- Iron-based superconductors research
- Magneto-Optical Properties and Applications
- Semiconductor materials and devices
- Ferroelectric and Piezoelectric Materials
- Electron and X-Ray Spectroscopy Techniques
- Advanced battery technologies research
- Supercapacitor Materials and Fabrication
- Advanced Condensed Matter Physics
- Magnetic Properties and Applications
- Nuclear Physics and Applications
- Photocathodes and Microchannel Plates
- Microwave Dielectric Ceramics Synthesis
- Chalcogenide Semiconductor Thin Films
- Quantum and electron transport phenomena
- Surface and Thin Film Phenomena
- Copper Interconnects and Reliability
- Conducting polymers and applications
- Advanced ceramic materials synthesis
- Perovskite Materials and Applications
- Advancements in Battery Materials
- Atomic and Subatomic Physics Research
Westlake University
2020-2024
Fudan University
2020-2024
State Key Laboratory of Electronic Thin Films and Integrated Devices
2018
University of Electronic Science and Technology of China
2016-2018
National Engineering Research Center of Electromagnetic Radiation Control Materials
2017-2018
Nanjing University of Science and Technology
2014
Center for NanoScience
2014
For building high‐energy density asymmetric supercapacitors, developing anode materials with large specific capacitance remains a great challenge. Although Fe 2 O 3 has been considered as promising material for the of ‐based anodes is still low and cannot match that cathodes in full cells. In this work, composite well dispersed quantum dots (QDs, ≈2 nm) decorated on functionalized graphene‐sheets (FGS) prepared by facile scalable method. The QDs/FGS composites exhibit up to 347 F g −1 1 m Na...
Hierarchical heterostructures of AgNPs-decorated MnO<sub>2</sub>nanowires are prepared by a facile yet efficient chemical strategy, and the composite electrode exhibits superior supercapacitive performance compared to bare MnO<sub>2</sub>electrode.
Abstract For generating or detecting spin currents without ferromagnetic materials in spintronic devices, nonmagnetic with large Hall angles would elicit extreme interest. A giant inverse effect (ISHE) Pt doped 8% Bi by composition is demonstrated. From a combination of resonance, pumping, and ISHE experiments, current found induced an yttrium iron garnet/Pt 0.92 0.08 bilayer. The diffusion length angle the alloy are λ SD = 3.3 ± 0.1 nm θ SH 0.106 0.005, respectively. In spin–charge...
Yttrium iron garnet (YIG) films with various thicknesses have been fabricated by liquid-phase epitaxy (LPE) on gadolinium gallium (GGG) (1 1 1) substrates showing unusual magnetic properties. In this work, we studied YIG between 100 nm and 1000 compared them La3+-doped (La:YIG) over a similar scale. The relaxation of tensile stress at the GGG/YIG interface, which caused hysteresis loop, showed an easy magnetization phase for thin (≤400 nm), while hard gradually appeared further increases to...
Spatial, momentum and energy separation of electronic spins in condensed matter systems guides the development novel devices where spin-polarized current is generated manipulated. Recent attention on a set previously overlooked symmetry operations magnetic materials leads to emergence new type spin splitting, enabling giant momentum-dependent polarization bands selected antiferromagnets. Despite ever-growing theoretical predictions, direct spectroscopic proof such splitting still lacking....
We have prepared Ni 0.5 Ti Nb 1– x Ta O 4 microwave dielectric ceramics using a traditional solid‐state reaction method. The influence of 5+ substituted at the site on crystal structures and properties is discussed. Structural refinement indicates that distortion in oxygen octahedron affected by substitution. constant dependent polarization NbO 6 octahedron. Q × f value improved as content increases, because increasing packing fractions. τ mostly dominated distortions Nb–O bonds ( δ );...
Alkali metal dosing has nowadays been extensively used in angle-resolved photoemission spectroscopy (ARPES) for the situ surface electron doping of materials to provide access unoccupied states. This technique also gives rise nontrivial physical phenomena, such as appearance quantum well states and effects due alkali intercalation. Here, we uncovered a previously unobserved type electronic behavior induced by dosing. By employing ARPES study evolution structure Ti2O3 thin film upon rubidium...
A key insight of Einstein's theory the photoelectric effect is that a minimum energy required for photoexcited electrons to escape from material. For past century it has been assumed lower energies make no contribution photoemission spectrum. Here we demonstrate conceptual possibility these 'failed' photoelectrons-primary or secondary-can be partially recycled generate new 'tertiary' sufficient escape. Such 'recycling' step goes beyond traditional three steps process (excitation, transport,...
We report on an unexpected effect of adhesives the surface reconstruction SrTiO3. used two types commercially available high-temperature adhesives, platinum (Pt) and carbon (C) pastes, to mount identical SrTiO3(100) substrates onto sample holders, respectively. Two different reconstructions, namely 2×1 (√13×√13)-R33.7°, were obtained using Pt C paste under nominally annealing conditions in ultrahigh vacuum (UHV). show that same reconstructions can be separately with UHV oxygen environment...
We report on a dramatic effect of the surface reconstruction substrate thin film growth. prepared two types reconstruction, namely 2×1 and (√13×√13)-R33.7° reconstructions, by annealing SrTiO3(001) substrates in ultrahigh vacuum (UHV) an oxygen environment, respectively. Subsequent co-depositions Fe Se atoms onto reconstructed SrTiO3 surfaces lead to growth films distinct six-fold four-fold symmetry, respectively, under nominally same conditions. Based in-situ angle-resolved photoemission...