Hao Wu
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View article: Parameter Estimation and Quantification of Magnetic Nanoparticles Based on Improved Particle Swarm Optimization
Parameter Estimation and Quantification of Magnetic Nanoparticles Based on Improved Particle Swarm Optimization Open
Magnetic Relaxometry (MRX) is a promising technique for probing the magnetic properties of nanoparticles with considerable potential in biomedical applications. It magnetizes magnetic nanoparticles through a direct current magnetic field t…
View article: Enhancing Spin–Orbit Torque Through Octahedral Tilt/Rotation Relaxation in CaRuO<sub>3</sub> Films for Efficient Magnetization Switching
Enhancing Spin–Orbit Torque Through Octahedral Tilt/Rotation Relaxation in CaRuO<sub>3</sub> Films for Efficient Magnetization Switching Open
Transition metal oxides with strong spin–orbit coupling exhibit efficient charge‐to‐spin interconversion. The modification of crystal structure provides a promising platform for enhancing the spin–orbit torque (SOT) efficiency, which poten…
View article: Ultralow Electrical Current Driven Field‐Free Spin‐Orbit Torque Switching of Magnetic Tunnel Junctions by Topological Insulators
Ultralow Electrical Current Driven Field‐Free Spin‐Orbit Torque Switching of Magnetic Tunnel Junctions by Topological Insulators Open
Spin‐orbit torque‐driven magnetic random‐access memory (SOT‐MRAM) is one of the promising candidates for next‐generation memory technologies beyond Moore's law. Due to its separation of writing and reading channels, the 3‐terminal device d…
View article: Noble-metal-free catalysts for the oxygen evolution reaction in acids
Noble-metal-free catalysts for the oxygen evolution reaction in acids Open
Oxygen evolution catalysts are critical components of proton exchange membrane water electrolysers (PEMWEs), playing a decisive role in determining both the performance and cost of these devices.
View article: Realizing Ultrahigh Conversion Efficiency of ≈9.0% in YbCd<sub>2</sub>Sb<sub>2</sub>/Mg<sub>3</sub>Sb<sub>2</sub> Zintl Module for Thermoelectric Power Generation
Realizing Ultrahigh Conversion Efficiency of ≈9.0% in YbCd<sub>2</sub>Sb<sub>2</sub>/Mg<sub>3</sub>Sb<sub>2</sub> Zintl Module for Thermoelectric Power Generation Open
Recently, YbCd 2 Sb 2 ‐based Zintl compounds have been widely investigated owing to their extraordinary thermoelectric (TE) performance. However, its p orbitals of anions that determined the valence band structure are split due to crystal …
View article: Comprehensive DTCO-Driven Power and Performance Optimization in Nanosheet and Forksheet Architectures: Influence of Dielectric Walls, Active Widths, and Power Delivery Methods
Comprehensive DTCO-Driven Power and Performance Optimization in Nanosheet and Forksheet Architectures: Influence of Dielectric Walls, Active Widths, and Power Delivery Methods Open
This study presents a comprehensive Design-Technology Co-Optimization (DTCO) approach to evaluate and enhance power and performance in Gate-All-Around Nanosheet (GAA-Nsh) and Forksheet (Fsh) architectures. The analysis focuses on the impac…
View article: Exposure image correction of electrical equipment nameplate based on the LMPEC algorithm
Exposure image correction of electrical equipment nameplate based on the LMPEC algorithm Open
An optimization algorithm based on the LMPEC algorithm is proposed to rectify the nameplate image to address the problem that overexposure and underexposure of the nameplate image of electrical equipment will make subsequent nameplate reco…
View article: Direct and Inverse Spin Splitting Effects in Altermagnetic RuO<sub>2</sub>
Direct and Inverse Spin Splitting Effects in Altermagnetic RuO<sub>2</sub> Open
Recently, the altermagnetic materials with spin splitting effect (SSE), have drawn significant attention due to their potential to the flexible control of the spin polarization by the Néel vector. Here, the direct and inverse altermagnetic…
View article: Controllable conical magnetic structure and spin-orbit-torque switching in symmetry-broken ferrimagnetic films
Controllable conical magnetic structure and spin-orbit-torque switching in symmetry-broken ferrimagnetic films Open
Exploring and controlling chiral spin textures has attracted enormous interest from the perspective of fundamental research and spintronic applications. Here, we report the emergence of spiral spin states, bulk spin-orbit torque (SOT), and…
View article: GMLake: Efficient and Transparent GPU Memory Defragmentation for Large-scale DNN Training with Virtual Memory Stitching
GMLake: Efficient and Transparent GPU Memory Defragmentation for Large-scale DNN Training with Virtual Memory Stitching Open
Large-scale deep neural networks (DNNs), such as large language models (LLMs), have revolutionized the artificial intelligence (AI) field and become increasingly popular. However, training or fine-tuning such models requires substantial co…
View article: Local environment-based machine learning for molecular adsorption energy prediction
Local environment-based machine learning for molecular adsorption energy prediction Open
Most machine learning (ML) models in Materials Science are developed by global geometric features, often falling short in describing localized characteristics, like molecular adsorption on materials. In this study, we introduce a local env…
View article: Giant 2D Skyrmion Topological Hall Effect with Ultrawide Temperature Window and Low-Current Manipulation in 2D Room-Temperature Ferromagnetic Crystals
Giant 2D Skyrmion Topological Hall Effect with Ultrawide Temperature Window and Low-Current Manipulation in 2D Room-Temperature Ferromagnetic Crystals Open
The discovery and manipulation of topological Hall effect (THE), an abnormal magnetoelectric response mostly related to the Dzyaloshinskii–Moriya interaction (DMI), are promising for next-generation spintronic devices based on topological …
View article: Spintronic devices based on topological and two-dimensional materials
Spintronic devices based on topological and two-dimensional materials Open
Novel quantum materials such as topological materials, two-dimensional materials, create new opportunities for the spintronic devices. These materials can improve the charge-spin conversion efficiency, provide high-quality interface, and e…
View article: Electron and magnon resonant tunneling: materials, physics and devices
Electron and magnon resonant tunneling: materials, physics and devices Open
Resonant tunneling (RT) originally refers to electron tunneling through the resonant states of double-barrier potentials with a series of sharply peaked transmission coefficients (close to unity) at certain energies. Electron RT can be use…
View article: Monolithically integrated 112 Gbps PAM4 optical transmitter and receiver in a 45nm CMOS-silicon photonics process
Monolithically integrated 112 Gbps PAM4 optical transmitter and receiver in a 45nm CMOS-silicon photonics process Open
We demonstrate a transmitter and receiver in a silicon photonics platform for O-band optical communication that monolithically incorporates a modulator driver, traveling-wave Mach-Zehnder modulator, control circuitry, photodetector, and TI…
View article: Anisotropic Interlayer Dzyaloshinskii–Moriya Interaction in Synthetic Ferromagnetic/Antiferromagnetic Sandwiches
Anisotropic Interlayer Dzyaloshinskii–Moriya Interaction in Synthetic Ferromagnetic/Antiferromagnetic Sandwiches Open
The interfacial Dzyaloshinskii–Moriya interaction (DMI) in ferromagnetic/non‐magnetic‐metal bilayers is essential to stabilize chiral spin textures for potential applications. Recent works reveal that the interlayer DMI is beneficial to de…
View article: Magnetization switching of a nearly compensated ferrimagnet by enhanced spin-orbit torque
Magnetization switching of a nearly compensated ferrimagnet by enhanced spin-orbit torque Open
Spin–orbit torques (SOTs) provide an efficient way to electrically manipulate the magnetic order in spintronic devices. Compared with conventional ferromagnetic materials, ferrimagnetic materials have the advantages of antiferromagneticall…
View article: Spintronic devices based on topological and two-dimensional materials
Spintronic devices based on topological and two-dimensional materials Open
Novel quantum materials such as topological materials, two-dimensional materials, create new opportunities for the spintronic devices. These materials can improve the charge-spin conversion efficiency, provide high-quality interface, and e…