A5053418919- Microstructure and Mechanical Properties of Steels
- Rare-earth and actinide compounds
- High Temperature Alloys and Creep
- Iron-based superconductors research
- Microstructure and mechanical properties
- Fusion materials and technologies
- Physics of Superconductivity and Magnetism
Northwestern Polytechnical University
2023-2024
Zhejiang University
2011-2012
Hangzhou Normal University
2012
Single-crystal neutron diffraction studies on superconductors ${A}_{2}{\mathrm{Fe}}_{4}{\mathrm{Se}}_{5}$, where $A=\mathrm{Rb}$, Cs, (Tl, Rb), and K) (${T}_{c}\ensuremath{\sim}30\text{ }\text{ }\mathrm{K}$), uncover the same Fe vacancy ordered crystal structure block antiferromagnetic order as in ${\mathrm{K}}_{2}{\mathrm{Fe}}_{4}{\mathrm{Se}}_{5}$. The order-disorder transition occurs at ${T}_{S}=500--578\text{ }\mathrm{K}$, ${T}_{N}=471--559\text{ }\mathrm{K}$ with an magnetic moment...
The upper critical field $\mu_0H_{c2}(T_c)$ of Tl$_{0.58}$Rb$_{0.42}$Fe$_{1.72}$Se$_2$ single crystals has been determined by means measuring the electrical resistivity in both a pulsed magnetic ($\sim$60T) and DC ($\sim$14T). It is found that $H_{c2}$ linearly increases with decreasing temperature for $\textbf{H}$$\parallel$$c$, reaching $\mu_0H_{c2}^{\textbf{H}\parallel c}(0\textrm{K})\simeq60$ T. On other hand, larger $\mu_0H_{c2}(0\textrm{K})$ strong convex curvature observed...