A5015826004- Magnetic properties of thin films
- Magnetic and transport properties of perovskites and related materials
- Physics of Superconductivity and Magnetism
- Advanced Memory and Neural Computing
- Quantum Computing Algorithms and Architecture
- Quantum Information and Cryptography
- Advanced Thermoelectric Materials and Devices
- Ferroelectric and Negative Capacitance Devices
- Epigenetics and DNA Methylation
- Theoretical and Computational Physics
- Catalytic Processes in Materials Science
- Advanced Condensed Matter Physics
- Advanced Electron Microscopy Techniques and Applications
- Crystallization and Solubility Studies
- Quantum Mechanics and Applications
- Quantum and electron transport phenomena
- X-ray Diffraction in Crystallography
- Semiconductor Quantum Structures and Devices
- Topological Materials and Phenomena
- Magnetic Properties of Alloys
- Thermal properties of materials
- ZnO doping and properties
- Religious Education and Schools
- Electrocatalysts for Energy Conversion
- Organic and Molecular Conductors Research
Anhui University
2024-2025
Southern University of Science and Technology
2024
North University of China
2021-2024
East China Normal University
2020-2024
University of Science and Technology Beijing
2019-2023
Chinese Academy of Sciences
2022
Beihang University
2022
Beijing Normal University
2022
Institute of Physics
2022
University of Chinese Academy of Sciences
2022
High conversion efficiency is demonstrated at a relatively small temperature difference for MgAgSb-based single thermoelectric leg with hot-pressed contacts.
We present new x-ray and neutron-scattering measurements of stripe order in ${\text{La}}_{1.875}{\text{Ba}}_{0.125}{\text{CuO}}_{4}$, along with low-field susceptibility, thermal conductivity, specific-heat data. compare these previously reported results for resistivity thermopower. Temperature-dependent features indicating transitions (or crossovers) are correlated among the various experimental quantities. Taking into account recent spectroscopic studies, we argue that most likely...
Abstract Electrical switching of magnetization through spin–orbit torque (SOT) induced by a composition gradient in single‐layer L 1 0 ‐FePt has garnered considerable research interest owing to its inherent superior perpendicular magnetic anisotropy (PMA) that provides ultrahigh capacity storage and memory devices. However, large in‐plane external field is typically required assist SOT‐driven switching, which still limitation for the practical application ‐FePt. This study reports realizable...
Spin-orbit torque (SOT) induced by current is a promising approach for electrical manipulation of magnetization in advancing next-generation memory and logic technologies. Conventional SOT-driven perpendicular switching typically requires an external magnetic field symmetry breaking, limiting practical applications. Recent research has focused on achieving field-free through out-of-plane SOT, with the key challenge being exploration new spin source materials that can generate z-polarized...
Abstract We investigate the carrier, phonon and spin dynamics in ferromagnetic semiconductor (In,Fe)Sb using ultrafast optical pump-probe spectroscopy. discover two anomalies near T * (~40 K) † (~200 photoexcited carrier dynamics, which can be attributed to electron-spin spin-lattice scattering processes influenced by magnetic phase transition modification anisotropy. The magnetization change revealed of coherent acoustic phonon. also observe abrupt changes photoinduced , not only illustrate...
Spin obit torque (SOT) driven magnetization switching has been used widely for encoding consumption-efficient memory and logic. However, symmetry breaking under a magnetic field is required to realize the deterministic in synthetic antiferromagnets with perpendicular anisotropy (PMA), which limits their potential applications. Herein, we report all electric-controlled antiferromagnetic Co/Ir/Co trilayers vertical imbalance. Besides, polarity could be reversed by optimizing Ir thickness. By...
Abstract Achieving effective manipulation of perpendicular exchange bias effect remains an intricate endeavor, yet it stands a significance for the evolution ultra-high capacity and energy-efficient magnetic memory logic devices. A persistent impediment to its practical applications is reliance on external fields during current-induced switching in perpendicularly magnetized structures. This study elucidates achievement full electrical multilayers with ultrathin antiferromagnetic layer....
In a commercial fiber-based quantum key distribution system, the local and signal optical fields are transmitted through long distance fibers by using time division multiplexing polarization multiplexing. The state of field is inevitably disturbed random birefringence standard single-mode fiber caused external complex environments. This drift significantly affects balanced homodyne detection results secret rate. Therefore, technology dynamic control unit crucial for system in large-scale...
Abstract Perpendicular magnetization switching driven by spin‐orbit torque (SOT) exhibits nonvolatility and adjustability, which has great potential applications in magnetic random‐access memory neuromorphic computing. In this work, the SOT efficiency Pt (001)/NiFe (Py) (111)/Py bilayers is first investigated, where single crystal films polycrystalline Py are grown molecular beam epitaxy magnetron sputtering, respectively. The (001)‐oriented sample shows a larger than that of (111)‐oriented...
Electrically generated spin-orbit torque (SOT) has emerged as a powerful pathway to control magnetization for spintronic applications including memory, logic, and neurocomputing. However, the requirement of external magnetic fields, together with ultrahigh current density, is main obstacle practical SOT devices. In this paper, we report that field-free SOT-driven switching can be successfully realized by interfacial ion absorption in perpendicular Ta/CoFeB/MgO multilayers. Besides, tunable...
We have combined temperature-dependent local structural measurements with first-principles density-functional calculations to develop a three-dimensional structure model of the misfit system $[{\text{Ca}}_{2}{\text{CoO}}_{3}]{[{\text{CoO}}_{2}]}_{1.61}$ (referred as ${\text{Ca}}_{3}{\text{Co}}_{4}{\text{O}}_{9}$) which has rocksalt stacked incommensurately on hexagonal ${\text{CoO}}_{2}$ lattice. The reveal low coordination Co(2)-O bonds in layer large static disorder. temperature dependence...
In an effort to develop a Standard Reference Material (SRM™) for Seebeck coefficient, we have conducted round-robin measurement survey of two candidate materials-undoped Bi 2 Te 3 and Constantan (55 % Cu 45 Ni alloy).Measurements were performed in rounds by twelve laboratories involved active thermoelectric research using number different commercial custom-built systems techniques.In this paper report the detailed statistical analyses on interlaboratory results methodology analysis...
Continuous variable measurement-device-independent quantum key distribution (CV-MDI-QKD) removes all known or unknown side-channel attacks on detectors. However, it is difficult to fully implement assumptions in the security demonstration model, which leads potential vulnerabilities inevitably existing practical system. In this paper, we explore impact of imbalanced modulation at transmitters CV-MDI-QKD system mainly using a coherent state and squeezed under symmetric asymmetric distances....
All 16 Boolean logic functions in a single Ta/CoFeB/MgO device with perpendicular magnetic anisotropy were experimentally demonstrated based on the spin–orbit torque (SOT) effect. Furthermore, by combining voltage-controlled (VCMA) effect, novel SOT-MTJ (magnetic tunnel junction) prototype assistance of VCMA effect was further designed to perform field-independent operations. The numerical simulations carried out, demonstrating feasibility realize all three-terminal applying bias voltage and...
The current-induced magnetization switching (CIMS) was successfully observed in epitaxial L10-FePt/CrxPt1−x (0 ≤ x 1) heterostructures grown by molecular beam epitaxy with large perpendicular magnetic anisotropy. With increasing Cr content, the critical current density (Jc) FePt/CrxPt1−x exhibited a decreasing trend, where it greatly reduced 69% FePt/Cr (3d) films compared to FePt/Pt (5d) strong spin–orbit coupling. Furthermore, same polarities were for all samples, indicating that orbital...
Three types of (111)-oriented Pt/Co/Pt trilayers with single-crystalline structures on MgO substrates were fabricated to investigate the mechanisms anomalous Hall effect. By introducing 2-monolayer (ML) Cr insertion between a (001) substrate and Pt underlayer in epitaxial structures, resistivity is significantly enhanced compared that deposited (111) surface. Furthermore, detailed crystalline characterized by situ reflection high-energy electron diffraction, low-energy microscopy,...
An experimental setup for determining the electrical resistivity of several types thermoelectric materials over temperature range 20 < T 550 C is described in detail. One measurement during cycling also explained Cu0.01Bi2Te2.7Se0.3 while a second made on Yb0.35Co4Sb12 as function time at 400 C. Both measurements confirm that are thermally stable and period measured. Measurements show an irreversible decrease when measuring exceeds pressing temperature. Several other possible uses such...
Macroscopic coherence of Bose condensates is a fundamental and practical phenomenon in many-body systems, such as the long-range correlation exciton-polariton with dipole density typically below exciton Mott-transition limit. Here we extend macroscopic electron-hole-photon interacting systems to new region phase diagram-the high-density plasma region, where generally assumed be broken due rapid dephasing. Nonetheless, cooperative state electron-hole does emerge through sharing...
Abstract Magnetization switching driven by spin‐orbit torques (SOTs) in perpendicular single magnets contributes to the development of high‐efficiency next‐generation spintronic memory and logic. However, in‐plane magnetic fields required for deterministic magnetization hamper design all‐electric‐control devices. Herein, a simple, efficient, reliable sputtered L 1 0 ‐FePt film with an artificial lateral gradient is reported. The exhibits strong angle dependence can be effectively tuned...
This work investigates the interplay between interfacial spin–orbit coupling (SOC) and magnon excitation-induced spin memory loss in epitaxial L10-FePt/MgO/L10-FePt magnetic tunnel junctions, which is crucial for advancing spintronic technologies. By employing systematic temperature-dependent transport measurements inelastic electron tunneling spectroscopy, our study reveals that SOC at Pt-terminated FePt/MgO interface significantly enhances excitation during tunneling. process results a...
Abstract In this work, the corrosion effects of seawater and production water on X65 specimens with or without bacteria were studied, weight loss analysis, scanning electron microscopy EDXA fluorescence analysis bacterial content carried out. The results show that is greater than water. Compared sterilized sample, SRB in bacterialized sample slightly promoted X65, but promotion effect within 7 days was rather limited. high pressure temperature environment not conducive to growth reproduction...
ABSTRACT Patent agency services are crucial for the codification of technical knowledge and inventions. Drawing on an inter‐firm network analysis patent service relationships between agencies their innovation clients during last two decades in China, this paper seeks to explore structure urban networks how it is shaped by China's unique institutional market forces. The study found that although generally follows basic innovative economic landscapes, still deeply intellectual property...