Jian‐Qing Dai

ORCID: 0000-0003-4352-0789
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Multiferroics and related materials
  • Ferroelectric and Piezoelectric Materials
  • Dielectric properties of ceramics
  • Advanced Condensed Matter Physics
  • 2D Materials and Applications
  • Magnetic and transport properties of perovskites and related materials
  • Advanced ceramic materials synthesis
  • Perovskite Materials and Applications
  • Electronic and Structural Properties of Oxides
  • Microwave Dielectric Ceramics Synthesis
  • Graphene research and applications
  • MXene and MAX Phase Materials
  • Semiconductor materials and devices
  • Advanced materials and composites
  • Topological Materials and Phenomena
  • Iron-based superconductors research
  • Magnesium Oxide Properties and Applications
  • Advanced Thermoelectric Materials and Devices
  • Acoustic Wave Resonator Technologies
  • Chalcogenide Semiconductor Thin Films
  • Physics of Superconductivity and Magnetism
  • Rare-earth and actinide compounds
  • Magnetic Properties and Synthesis of Ferrites
  • Advanced Sensor and Energy Harvesting Materials
  • Ferroelectric and Negative Capacitance Devices

Kunming University of Science and Technology
2015-2024

Ikerbasque
2024

Kunming University
2017-2021

Universidad Católica de Cuenca
2021

Hangzhou Normal University
2017

Renmin University of China
2014

Zhejiang University
2010-2013

Shandong University of Technology
2010

State Key Laboratory of New Ceramics and Fine Processing
1999-2003

Tsinghua University
1999-2003

The relative stability of multiferroic BiFeO3 (0001) surfaces, which is the (111) facet in pseudocubic notation, with different stoichiometry systematically studied by using ab initio thermodynamic approach order to obtain insights into stable surface terminations. We predict that under most chemical potential conditions thermodynamically favored terminations for negative and positive surfaces are −Bi–O2 −Fe–O3–Bi, respectively. predicted difference oxygen content between consistent...

10.1021/acsami.6b14726 article EN ACS Applied Materials & Interfaces 2016-12-29

Abstract A nano-laminated Y 3 Si 2 C ceramic material was successfully synthesized via an in situ reaction between YH and SiC using spark plasma sintering technology. MAX phase-like ternary layered structure of observed at the atomic-scale by high resolution transmission electron microscopy. The lattice parameters calculated from both X-ray diffraction selected area patterns are good agreement with reported theoretical results. fracture kink boundaries, delamination, slipping were tip...

10.1007/s40145-021-0459-0 article EN cc-by Journal of Advanced Ceramics 2021-04-26

At present, the development of new carbon-based nanoporous materials with semiconductor properties and high hydrogen storage capacity has become a research hotspot in field supply. Here, we pioneered study scandium (Sc) atom-modified covalent organic framework-1 (COF-1) layer. It was found that COF-1 structure significantly enhanced after modification Sc atom. We each atom modified can stably adsorb up to four H2 molecules, average adsorption energy molecules is −0.284 eV/H2. Six atoms are...

10.1021/acsomega.1c02452 article EN cc-by-nc-nd ACS Omega 2021-08-20

Abstract A novel Pr 3 Si 2 C additive was uniformly coated on SiC particles using a molten‐salt method to fabricate high‐density ceramics via liquid‐phase spark plasma sintering at relatively low temperature (1400°C). According the calculated Pr–Si–C‐phase diagram, liquid phase formed ∼1217°C, which effectively improved rate of by solution–reprecipitation process. When increased from 1400 1600°C, thermal conductivity 84 126 W/(m K), as consequence grain growth. However, an increasing amount...

10.1111/jace.18520 article EN Journal of the American Ceramic Society 2022-04-27

First-principles calculations were used to investigate the interfacial electronic structure and magnetoelectric effect in Fe/PbTiO3 heterointerface. We demonstrate that large this system is determined by combination of different coupling mechanisms, i.e., conjunction interface bonding mechanism electrostatic screening spin-polarized carriers. The change induced magnetic moments on Ti atoms due variation when ferroelectric polarization reverses, while contribution from Fe mechanisms enhances...

10.1063/1.4719972 article EN Journal of Applied Physics 2012-06-01

A first-order-like resistivity hysteresis is induced by a subtle structural transition under hydrostatic pressure in the topological nodal-line superconductor ${\mathrm{PbTaSe}}_{2}$. This structure quickly suppressed to zero at $\ensuremath{\sim}0.25$ GPa. As result, superconductivity shows marked suppression, accompanied with pronounced changes magnetoresistance and Hall resistivity. The first-principles calculations show that spin-orbit interactions partially gap out Dirac nodal line...

10.1103/physrevb.96.064528 article EN Physical review. B./Physical review. B 2017-08-31
Coming Soon ...