A5020678280- Advanced Condensed Matter Physics
- Magnetic and transport properties of perovskites and related materials
- Physics of Superconductivity and Magnetism
- Electronic and Structural Properties of Oxides
- Quantum and electron transport phenomena
- Magneto-Optical Properties and Applications
- Quantum, superfluid, helium dynamics
- 2D Materials and Applications
- Heusler alloys: electronic and magnetic properties
- Multiferroics and related materials
- Copper Interconnects and Reliability
- Gyrotron and Vacuum Electronics Research
- Advanced X-ray and CT Imaging
- Microwave Engineering and Waveguides
- Topological Materials and Phenomena
Peking University
2021-2025
Collaborative Innovation Center of Quantum Matter
2022
Kyoto University
2022
We have investigated the low temperature <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mo>(</a:mo><a:mi>T</a:mi><a:mo>)</a:mo></a:math> transport properties of fractional quantum Hall (FQH) states in a high-mobility two-dimensional hole gas. According to composite fermion (CF) model, FQH stemming from half-filled Landau level, specifically at fillinsg factors <b:math...
Spin Seebeck effect (SSE), the generation of spin current from heat, has been extensively studied in a large variety magnetic materials, including ferromagnets, antiferromagnets, paramagnets, and quantum liquids. In this paper, we report study SSE single crystalline Pb2V3O9, spin-gapped magnet candidate with quasi-one-dimensional spin-1/2 chain. Detailed temperature field dependences are investigated, temperature-dependent critical fields show strong correlation to Bose-Einstein condensation...
The recent discoveries of superconducting oxide interfaces provide new platforms to explore the exotic properties in two-dimensional (2D) regime. In this paper, we report observation quasi-2D superconductivity at $\mathrm{EuO}/\mathrm{BaBi}{\mathrm{O}}_{3}$ (001) interface with transition temperature $\ensuremath{\sim}3.5$ K. current-voltage characteristics reveal signature a Berezinski-Kosterlitz-Thouless transition, which indicates existence interface. Furthermore, nature is also supported...
Nonreciprocal transport, an exciting quantum physical phenomenon arising from symmetry breaking, can be significantly magnified in the superconducting state. Recent progresses have demonstrated it as a unique probe of pairing mechanisms symmetry-breaking superconductors (SCs). Here, we report nonreciprocal charge transport superconductivity Bi/Ni bilayer, $p$-wave SC candidate. The signal is dramatically enhanced under in-plane magnetic field, but vanishes perpendicular field. Interestingly,...
The recent discovery of superconducting interfaces in the $KTaO_3 (111)$-based heterostructures is intriguing, since a much higher critical temperature (TC ~ 2 K) achieved compared to that $SrTiO_3$ (~ 300 mK). In this paper, we report properties $EuO/KTaO_3 (111)$ interface as function carrier density ($n_s$). maximum T_C observed be K at $n_s$ $1\times10^{14}$ cm-2. addition, show current and upper magnetic field can effectively tuned by back gate voltage. Interestingly, dependence...
Half-metals are a class of quantum materials with 100% spin polarization at the Fermi level and have attracted lot attention for future spintronic device applications. CrO
Recently, an exciting discovery of orientation-dependent superconductivity was made in two-dimensional electron gas (2DEG) at the interfaces ${\mathrm{LaAlO}}_{3}/{\mathrm{KTaO}}_{3}$ (LAO/KTO) and EuO/${\mathrm{KTaO}}_{3}$ (EuO/KTO). The superconducting transition temperature can reach a ${T}_{c}$ up to $\ensuremath{\sim}2.2$ K, which is significantly higher than its $3d$ counterpart ${\mathrm{LaAlO}}_{3}/{\mathrm{SrTiO}}_{3}$ (LAO/STO) with $\ensuremath{\sim}0.2$ K. However, underlying...