A5108904129- Terahertz technology and applications
- Magnetic properties of thin films
- Gyrotron and Vacuum Electronics Research
- Photonic and Optical Devices
- Recycling and Waste Management Techniques
- Topological Materials and Phenomena
- Electromagnetic Launch and Propulsion Technology
- Magneto-Optical Properties and Applications
- Semiconductor Quantum Structures and Devices
- Quantum optics and atomic interactions
- Geochemistry and Elemental Analysis
- Quantum and electron transport phenomena
- Wastewater Treatment and Nitrogen Removal
- Particle accelerators and beam dynamics
- Healthcare and Environmental Waste Management
- Superconducting and THz Device Technology
- Microbial Community Ecology and Physiology
- Municipal Solid Waste Management
University of Science and Technology of China
2023-2024
Institute of Modern Physics
2024
Chinese Academy of Sciences
2024
University of Chinese Academy of Sciences
2024
Xiamen University of Technology
2016
China Metallurgical Geology Bureau
2014
Abstract Spintronic terahertz (THz) emitters (STEs) based on magnetic heterostructures have emerged as promising THz sources. However, it is still a challenge to achieve higher intensity STE satisfy all kinds of practical applications. Herein, we report Pt 0.93 (MgO) 0.07 /CoFeB nanofilm by introducing dispersed MgO impurities into Pt, which reaches 200% compared Pt/CoFeB and approaches the signal 500 μm ZnTe crystal under same pump power. We obtain smaller spin diffusion length an increased...
The thermodynamic ground of the spin transport is elaborated, demonstrating Onsager's reciprocal relation. latter also confirmed by deriving Hall effect and its inverse using semiclassical theory linear response theory. Importantly, intrinsic contribution to conductivity that satisfies relation has only Hall-type component hence does not dissipate heat, in analogy anomalous fulfilling requirement. Based on expression conductivity, Berry-phase origin elaborated for recent-discovered planar...
Flexible manipulation of the polarization state is essential for practical application terahertz (THz) waves in many fields. However, lack effective, high-quality polarization-tunable THz sources hinders further development technology. Here, we demonstrate an actively switchable spintronic source with states among linear, circular, and elliptical CoFeB/Pt/SiO2(sub)/Ta/Co/IrMn structure by using antiferromagnet/ferromagnet exchange bias effect, as well a temporary magnetic field to combine...
Abstract Spintronic terahertz (THz) emission via spin-to-charge conversion (SCC) has been widely studied in ferromagnets (FM)/nonmagnets (NM) structures, which various mechanisms of SCC have confirmed different NM materials. However, it is rare to find a material having multiple at the same time. Here, we report ferromagnetic metal Ni film with diverse functions process, by performing THz experiments single layer, FM/Ni, Ni/NM bilayers and FM/Ni/NM trilayers. It demonstrated that monolayer,...
Superconducting Radio Frequency technologies are widely employed in particle accelerators to explore the frontiers of science. Pure niobium cavity with 2.8–4[Formula: see text]mm thickness is traditional technology a compromise between thermal conduction and mechanic stability. To meet requirements higher stability such as ADS linac, high intensity pulse solution for enhancing superconducting cavities by Al–Nb double layer structure proposed while maintaining enough heat transfer capacity....
The Magneto-Optical Kerr Effect (MOKE) is a fundamental tool in magnetometry, pivotal for advancing research optics, magnetism, and spintronics as direct probe of magnetization. Traditional MOKE measurements primarily detect the magnetization components parallel to Poynting vector, which can only access magnitude but not direction orthogonal component. In this study, we introduce an geometry signal detects both component perpendicular vector. We demonstrate broad applicability through cubic...
This paper regarded the sediments of Lake Baiyangdian as object study, researched and analyzed ammonia nitrogen adsorption characteristics sediment samples. The results showed that: to reached a state equilibrium after 2.5h, rate was maximum in 0~10min. Sediment higher liquid balance concentration increased. isotherm curve nitreogen can be fitted well by Langmuir model. total quantity is between 54.12mg/kg 240.12mg/kg.
The problem of residential solid waste (RSW) has drawn increasing attention.It is important to accurately predict the amount RSW for planning management.In this research, a combined weight-varying model was presented based on logarithm fit, linear exponential smoothing, and grey prediction GM(1, 1).The optimal weights in were determined accordance with Xiamen City from 2009 2014 production 2015 2024 had been predicted.The results showed that performed very well at precision would likely be...