A5100457374- Topological Materials and Phenomena
- Surface and Thin Film Phenomena
- Magnetic properties of thin films
- Semiconductor materials and interfaces
- Graphene research and applications
- Electronic and Structural Properties of Oxides
- Iron-based superconductors research
- Copper Interconnects and Reliability
- Molecular Junctions and Nanostructures
- 2D Materials and Applications
- Intellectual Capital and Performance Analysis
- Quantum and electron transport phenomena
- Physics of Superconductivity and Magnetism
- Quantum Mechanics and Applications
- Rare-earth and actinide compounds
- Quantum optics and atomic interactions
- Magnetic and transport properties of perovskites and related materials
- Cold Atom Physics and Bose-Einstein Condensates
Institute of Physics
2021-2023
Chinese Academy of Sciences
2019-2023
Tsinghua University
2023
University of Chinese Academy of Sciences
2019-2023
National Laboratory for Superconductivity
2022
Chongqing University
2019
Shanghai Institute of Optics and Fine Mechanics
2019
Zhongyuan University of Technology
2012-2015
Zhengzhou University
2012
The modulation of topological electronic state by an external magnetic field is highly desired for condensed-matter physics. Schemes to achieve this have been proposed theoretically, but few can be realized experimentally. Here, combining transverse transport, theoretical calculations, and scanning tunneling microscopy/spectroscopy (STM/S) investigations, we provide observation that the state, accompanied emergent magneto-transport phenomenon, was modulated applying through induced...
We report the measurement of absolute transition frequencies $^{87}\mathrm{Rb}$ atoms to $n{P}_{1/2}$ ($n=34--52$) and $n{P}_{3/2}$ ($n=34--90$) Rydberg states by performing single-photon excitation spectroscopy in a vapor cell. transitions were detected monitoring transmission 780-nm probe beam. Based on spectroscopic data, we determined fine-splitting intervals oscillator-strength ratios $nP$ doublets also extracted quantum defects ionization frequency. These results extend information...
Atomically thin van der Waals magnetic materials have not only provided a fertile playground to explore basic physics in the two-dimensional (2D) limit but also created vast opportunities for novel ultrafast functional devices. Here we systematically investigate magnetization dynamics and spin wave few-layer topological antiferromagnetic MnBi2Te4 crystals as function of layer number, temperature, field. We find laser-induced (de)magnetization processes can be used accurately track distinct...
Through first-principles calculations within density functional theory, the phase shift between surface energy and work function in FCC (111) HCP (0001) Pb Pb1–xBix alloy films has been investigated. Deviating from previously described mismatch functions, an additional of about one monolayer is identified at small thickness films. The depends on film will disappear as increases. Moreover, we give interpretation one-monolayer deviation framework free electron model, attributing it to unique...
Using first-principles calculations based on density functional theory, the quantum size effects (QSEs) of CoSi2 ultrathin films with different thickness have been studied. Our results confirm that both stability and interlayer relaxation CoSi2(111) oscillate in a tri-trilayers by mode, beating period 16 trilayers. We also predict CoSi2(100) bi-bilayers 9 bilayers. Such thickness-depend oscillation can be attributed to QSEs associated very flat Fermi surface along growth direction, resulting...
The modulation of topological electronic states by an external magnetic field is highly desired for condensed matter physics. Schemes to achieve this have been proposed theoretically, but few can be realized experimentally. Here, combining transverse transport, theoretical calculations, and scanning tunneling microscopy/spectroscopy (STM/S) investigations, we provide observation that the states, accompanied emergent magneto-transport phenomenon, were modulated applying fields through induced...