A5084885166- Magnetic properties of thin films
- Multiferroics and related materials
- Physics of Superconductivity and Magnetism
- Magnetic and transport properties of perovskites and related materials
- Advanced Memory and Neural Computing
- 2D Materials and Applications
- Advanced Condensed Matter Physics
- ZnO doping and properties
- Magneto-Optical Properties and Applications
- Adaptive optics and wavefront sensing
- Topological Materials and Phenomena
- Quantum and electron transport phenomena
- Graphene research and applications
- Ferroelectric and Negative Capacitance Devices
- Optical Systems and Laser Technology
- Cosmology and Gravitation Theories
- Metallurgical Processes and Thermodynamics
- Fluid Dynamics and Mixing
- Land Use and Ecosystem Services
- Black Holes and Theoretical Physics
- Thermal Expansion and Ionic Conductivity
- Ferroelectric and Piezoelectric Materials
- Educational Reforms and Innovations
- Noncommutative and Quantum Gravity Theories
- Urban Heat Island Mitigation
Tsinghua University
2013-2025
Chang'an University
2022-2025
Nanjing Institute of Astronomical Optics & Technology
2010-2024
Chinese Academy of Sciences
2007-2024
Institute of Physics
2024
National Astronomical Observatories
2016-2020
Beihang University
2012-2019
Dow Chemical (United States)
2015
Freeport-McMoRan (United States)
2015
Nankai University
2007-2013
Current-induced spin torques provide efficient data writing approaches for magnetic memories. Recently, the splitting torque (SST) was theoretically predicted, which combines advantages of conventional transfer (STT) and spin-orbit (SOT) as well enables controllable polarization. Here we experimental evidence SST in collinear antiferromagnet RuO_{2} films. The current direction is found to be correlated crystal orientation polarization dependent on (parallel to) Néel vector. These features...
The relativistic spin Hall effect and inverse enable the efficient generation detection of current. Recently, a nonrelativistic altermagnetic splitting (ASSE) has been theoretically experimentally reported to generate time-reversal-odd current with controllable polarization in antiferromagnet ${\mathrm{RuO}}_{2}$. effect, electrical via ASSE, still remains elusive. Here we show spin-to-charge conversion stemming from ASSE ${\mathrm{RuO}}_{2}$ by Seebeck measurements. Unconventionally,...
Antiferromagnetic spintronics have attracted wide attention due to its great potential in constructing ultradense and ultrafast antiferromagnetic memory that suits modern high-performance information technology. The electrical 180° switching of Néel vector is a long-term goal for developing electrical-controllable with opposite vectors as binary “0” “1.” However, the state-of-art mechanisms long been limited 90° or 120° vector, which unavoidably require multiple writing channels contradict...
Skyrmion bags, with arbitrary topological charge Q, have recently attracted much interest, since such high-Q systems could open a way for magnetism research and are promising spintronic applications high flexibility information encoding. Investigation on room-temperature skyrmion bags in magnetic multilayered structures is essential remains unexplored so far. Here, we demonstrate creation manipulation of individual disks. Individual varying charges identified to remain stable at zero field....
We demonstrate spin-orbit torque (SOT) switching of amorphous CoTb single-layer films with perpendicular magnetic anisotropy (PMA). The sustains even the film thickness is above 10 nm, where critical current density stays almost constant. Without need overcoming strong interfacial Dzyaloshinskii-Moriya interaction caused by heavy metal, a quite low assistant field \ensuremath{\sim}20 Oe sufficient to realize full switching. SOT effective decreases and undergoes sign change decrease Tb...
Abstract Perpendicularly magnetized synthetic antiferromagnets (SAF), possessing low net magnetization and high thermal stability as well easy reading writing characteristics, have been intensively explored to replace the ferromagnetic free layers of magnetic tunnel junctions kernel spintronic devices. So far, utilizing spin-orbit torque (SOT) realize deterministic switching perpendicular SAF reported while a large external field is typically needed break symmetry, making it impractical for...
Out-of-plane spin polarization σ
Urban construction land expansion damages natural ecological patches, changing the relationship between residents and land. This is widespread due to global urbanization. Considering nature society in urban planning, we have established an evaluation system for green space ensure development residents’ needs while considering resource distribution. alleviate contradiction of use realize city’s sustainable development. Taking Fengdong New City, Xixian Area as example, study used seven...
Abstract Efficient spin sources with large Hall angle ( θ SH ) and long diffusion length λ SD are highly desired in the application of spintronic devices. However, due to strong spin‐orbit coupling, two targets can hardly be achieved simultaneously conventional relativistic sources, like heavy metals. Here, it is proven that collinear antiferromagnetic RuO 2 films able address this key issue break inverse relationship versus . Based on torque‐ferromagnetic resonance pumping measurements,...
Since the discovery of antiferromagnetism, metallic oxide RuO_{2} has exhibited numerous intriguing spintronics properties such as anomalous Hall effect and anisotropic spin splitting effect. However, microscopic origin its antiferromagnetism remains unclear. By investigating torque in RuO_{2}/Py, we found that exhibits a spatially periodic structure which interacts with waves Py through interfacial exchange coupling. The wavelength is evaluated within 14-20 nm depending on temperature,...
The ecological and social problems brought about by China’s rapid urbanization process threaten sustainable development. Taking the cities with high coarse sediment yield in middle reaches of Yellow River as research objects, this study constructed a complex analytical framework composed urbanization, ecosystem service value (ESV), human well-being (HBW) subsystems. equivalent factor method (EFM) was used to evaluate ESV. entropy weight (EWM) comprehensive nighttime light index (CNLI) were...
Abstract Magnetic skyrmions have gained unprecedented attention for their potential applications in spintronic devices, such as non‐volatile memory, energy‐efficient, and non‐von Neumann devices. In particular, synthetic antiferromagnets (SAF) are believed to overcome the fundamental limitations of widely studied ferromagnetic terms size effective current‐induced manipulation. Recently, several methods been proposed stabilize SAF skyrmions, however, controllable creation manipulation remains...
Antiferromagnetic (AFM) spintronics is an emerging field, with significant advances in particular the study of tunable spin generation, transport, manipulation, and detection based on control probe AFM moments. The Néel-vector-dependent current generation materials makes them efficient controllable source, paving way for future spintronic devices ultralow power consumption high operability. Herein, we aim to provide a comprehensive review recent progress charge-spin conversion mediated by...
The inverse spin Hall effect (ISHE) is one of the accessible and reliable methods to detect current. magnetization-dependent has been observed in magnets, expanding dimension for spin-to-charge conversion. However, antiferromagnetic Néel-vector-dependent ISHE, which long time highly pursued, still elusive. Here, ISHE Mn2 Au/[Co/Pd] heterostructures investigated by terahertz emission Seebeck measurements, where [Co/Pd] possesses perpendicular magnetic anisotropy out-of-plane polarized current...
Abstract The relativistic inverse spin Hall effect (ISHE) plays a pivotal role in terahertz (THz) emission magnet/heavy metal bilayers. Here, THz from RuO 2 /Py bilayers is reported due to not only the ISHE but also nonrelativistic altermagnetic splitting (IASSE) . For (100)‐oriented bilayers, greatly enhanced owing IASSE once polarization direction of current (from Py layer induced by pump laser) parallel Néel vector , producing anisotropic with twofold symmetry. In contrast, (110)/Py...
The discovery of van der Waals (vdW) ${\mathrm{MnBi}}_{2}{\mathrm{Te}}_{4}$ provides a platform for investigating the quantum anomalous Hall effect (QAHE), which is candidate computation without dissipation. However, because topological requirement, High Chern number QAHE with extended dissipation-free channels hard to achieve in atomically thin samples, can take full advantage two-dimensional (2D) materials. In this work, by first-principles calculations, variable stacking order (inherent...