A5087865688- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Multiferroics and related materials
- ZnO doping and properties
- Magnetic Properties of Alloys
- Advanced Photocatalysis Techniques
- Dielectric properties of ceramics
- Gas Sensing Nanomaterials and Sensors
Tamkang University
2017-2024
Using magnetization, dielectric constant, and neutron diffraction measurements on a high quality single crystal of YBaCuFeO5 (YBCFO), we demonstrate that the shows two antiferromagnetic transitions at K K, displays giant constant with characteristic relaxation TN2. It does not show evidence electric polarization for used this study. The transition TN1 corresponds paramagnetic to magnetic propagation vector doubling unit cell along three crystallographic axes. Upon cooling, TN2, commensurate...
We report the tunable magnetic structures in helimagnet $\mathrm{YBa}{(\mathrm{C}{\mathrm{u}}_{1\ensuremath{-}x}\mathrm{F}{\mathrm{e}}_{x})}_{2}{\mathrm{O}}_{5}$ by changing various Cu/Fe ratios. The properties and of samples were studied using neutron- x-ray powder diffraction susceptibility measurements. parent material $\mathrm{YBaCuFe}{\mathrm{O}}_{5}$ (YBCFO) exhibits two antiferromagnetic (AFM) transitions at ${T}_{N1}\ensuremath{\sim}450$ K ${T}_{N2}\ensuremath{\sim}175$ K. At...
Synchrotron-based X-ray spectroscopic and microscopic techniques are used to identify the origin of enhancement photoelectrochemical (PEC) properties BiVO4 (BVO) that is coated on ZnO nanodendrites (hereafter referred as BVO/ZnO). The atomic electronic structures core–shell BVO/ZnO have been well-characterized, heterojunction has determined favor migration charge carriers under PEC condition. variation density between BVO in with many unpaired O 2p-derived states at interface forms...