A5028471676- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Multiferroics and related materials
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Ferroelectric and Negative Capacitance Devices
- MXene and MAX Phase Materials
- Electronic and Structural Properties of Oxides
- Advanced Photocatalysis Techniques
- 2D Materials and Applications
- Ferroelectric and Piezoelectric Materials
- Magnetic Properties of Alloys
- Magnetic properties of thin films
- Heusler alloys: electronic and magnetic properties
- ZnO doping and properties
- Magnetic Field Sensors Techniques
- Copper-based nanomaterials and applications
- Semiconductor materials and devices
- Chalcogenide Semiconductor Thin Films
- Perovskite Materials and Applications
Huaibei Normal University
2024
Hefei National Center for Physical Sciences at Nanoscale
2021-2024
University of Science and Technology of China
2017-2024
Hefei University
2020
Anhui University
2015
The g-C3N4-based composite structure exhibits excellent photocatalytic performance. However, their photogenerated carrier transfer and reaction mechanism were unclear. In this study, a 2D/2D g-C3N4/SnS2 heterojunction was systematically investigated by hybrid density functional approach. Results indicated that the staggered band alignment structure, bending occurred at interface. A built-in electric field from g-C3N4 surface to SnS2 formed interfacial interaction. During visible-light...
ZrO2 as a wide-bandgap semiconductor with high dielectric constant and ferroelectric properties has been extensively studied. To explore the impact of chemical doping on structure optical performance ZrO2, HfxZr1−xO2 (x = 0, 0.25, 0.5, 0.75, 1) thin films were prepared through pulsed laser deposition. X-ray diffraction reveals that orthorhombic phase (o) (111) gradually transforms into monoclinic (m) (−111) increase in Hf content from 0 to 1. Furthermore, property analysis demonstrates an...
In transition-metal-oxide heterostructures, the anomalous Hall effect (AHE) is a powerful tool for detecting magnetic state and revealing intriguing interfacial orderings. However, achieving larger AHE at room temperature in oxide heterostructures still challenging due to dilemma of mutually strong spin-orbit coupling exchange interactions. Here, Ru-doping-enhanced La2/3 Sr1/3 Mn1-x Rux O3 epitaxial films exploited. As B-site Ru doping level increases up 20%, resistivity can be enhanced from...
Semiconductor heterojunctions have higher photocatalytic performance than a single material. However, the energy band offset and reaction mechanism of these remain controversial. Here, tungsten disulfide (WS2)/graphitic carbon nitride (GCN) heterojunction water splitting is investigated with hybrid density functional method. The structures states (DOS) indicate that WS2/GCN type-II heterojunction, its valence conduction are 0.27 0.04 eV, respectively. differential charge distribution work...
Abstract Hafnium‐based binary oxides have attracted considerable attention due to their robust ferroelectricity at the nanoscale and compatibility with silicon‐based electronic technologies. To further promote potential of Hafnium for practical device applications, it is essential effectively harness interplay between structural symmetry, domain configuration, ferroelectricity. Here, using Hf 0.5 Zr O 2 /La 0.67 Sr 0.33 MnO 3 (HZO/LSMO) heterostructures as a model system, anisotropic...
Here, using various substrates, we demonstrate that the in-plane uniaxial strain engineering can enhance Jahn-Teller distortions and promote selective orbital occupancy to induce an emergent antiferromagnetic insulating (AFI) phase at x = 1/3 of La1-xCaxMnO3. Such AFI depends not only on magnitude epitaxial but also symmetry substrates. Using large imparted by DyScO3(001) substrate, ground state is achieved in a wide range doping levels (0 ≤ 1/2), leaving extended diagram. Moreover, it found...
Abstract The electronic structure of constituent layers and the spin channel propagating electrons are critical factors that affect magnitude sign magnetoresistance (MR) in synthetic antiferromagnets (SAFMs), which important for spintronic applications. However, all‐oxide‐based SAFMs, where there is strong coupling between multiple degrees freedom, transport becomes more complex remains elusive. Here, using ultrathin half‐metallic manganite/doped ruthenate SAFMs as a model system, three...
In transition-metal-oxide heterostructures, the anomalous Hall effect (AHE) is a powerful tool for detecting magnetic state and revealing intriguing interfacial orderings. However, achieving larger AHE at room temperature in oxide heterostructures still challenging due to dilemma of mutually strong spin-orbit coupling exchange interactions. Here, we exploit Ru doping-enhanced LSMRO epitaxial films. As B-site doping level increases up 20 percent, resistivity can be enhanced from nOhmcm uOhmcm...
Effective control of magnetic anisotropy is important for developing spintronic devices. In this work, we performed a case study stacking periods (N)-mediated reorientation lateral in ultrathin La0.67Ca0.33MnO3/SrRuO3 superlattices. As N increases from 1 to 15, the easy-axis switches orthorhombic [010] [100]-axis. The maximum constant superlattice (SL) (N = 15) reaches −1.83 × 105 erg/cm3. X-ray absorption spectroscopy and x-ray linear dichroism further suggest that observed changes are...
Abstract Hafnium‐oxide‐based ferroelectrics have garnered considerable research interest, primarily for their robust ferroelectricity at the nanoscale and high compatibility with complementary metal‐oxide‐semiconductors processes. However, impact of electrodes on ferroelectric properties hafnium‐oxide layer, particularly that top electrodes, is not yet fully understood even in simplest capacitor geometry. In this study, La 0.67 Sr 0.33 MnO 3 /Hf 0.5 Zr O 2 (LSMO/HZO) epitaxial...
As a prototypical half-metallic ferromagnet, La 0.67 Sr 0.33 MnO 3 (LSMO) has been extensively studied due to its versatile physical properties and great potential in spintronic applications. However, the weak perpendicular magnetic anisotropy (PMA) limits controllability detection of magnetism LSMO, thus hindering realization oxide-based devices with low energy consumption high integration level. Motivated by this challenge, we develop an experimental approach enhance PMA LSMO epitaxial...
All-oxide-based synthetic antiferromagnets (SAFs) are attracting intense research interest due to their superior tunability and great potentials for antiferromagnetic spintronic devices. In this work, using the La2/3Ca1/3MnO3/CaRu1/2Ti1/2O3 (LCMO/CRTO) superlattice as a model SAF, we investigated layer-resolved magnetic reversal mechanism by polarized neutron reflectivity. We found that of LCMO layer moments is mediated nucleation, expansion, shrinkage soliton. This unique process creates...
As a prototypical half-metallic ferromagnet, La0.67Sr0.33MnO3 (LSMO) has been extensively studied due to its versatile physical properties and great potential in spintronic applications. However, the weak perpendicular magnetic anisotropy (PMA) limits controllability detection of magnetism LSMO, thus hindering realization oxide-based devices with low energy consumption high integration level. Motivated by this challenge, we develop an experimental approach enhance PMA LSMO epitaxial films....
Abstract As a prototypical half-metallic ferromagnet, La 0.67 Sr 0.33 MnO 3 (LSMO) has been extensively studied due to its versatile physical properties and great potential in spintronic applications. However, the weak perpendicular magnetic anisotropy (PMA) limits controllability detection of magnetism LSMO, thus hindering realization oxide-based devices with low energy consumption high integration level. Motivated by this challenge, we developed an experimental approach enhance PMA LSMO...
The interfacial enhanced ferromagnetism in maganite/ruthenate system is regarded as a promising path to broaden the potential of oxide-based electronic device applications. Here, we systematically studied physical properties La 1− x Ca MnO 3 /SrRuO superlattices and compared them with thin films bulk compounds. exhibit significant enhancement Curie temperature ( T C ) beyond corresponding bulks. Based on these results, constructed an extended phase diagram under engineering. We considered...