Yalin Lu
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View article: Giant Polar Displacements via Strain Relaxation in Itinerant Ferromagnet SrRuO <sub>3</sub> Freestanding Films
Giant Polar Displacements via Strain Relaxation in Itinerant Ferromagnet SrRuO <sub>3</sub> Freestanding Films Open
Polar displacements are conventionally seen as incompatible with metallicity due to charge screening. However, in perovskite oxide heterostructures, cation off‐centring distortions can be achieved through interface engineering strategies—s…
View article: Active hybrid spintronic THz emitters with tunable chirality
Active hybrid spintronic THz emitters with tunable chirality Open
The ability to generate and manipulate polarization-shaped terahertz (THz) waves plays a crucial role in applications such as THz sensing, THz wireless communication, and materials imaging. However, there is great demand to develop an effi…
View article: Unconventional Magnetic and Magneto-transport Properties in a Canted Antiferromagnet Fe<sub>3</sub>SnSb
Unconventional Magnetic and Magneto-transport Properties in a Canted Antiferromagnet Fe<sub>3</sub>SnSb Open
Canted antiferromagnets have attracted considerable research interest due to their distinctive physical characteristics. However, suitable material platforms for such investigations remain limited. In this study, we present the exceptional…
View article: Anomalous Magnetic Hysteresis up to 20 K in a Non‐Kramers Light‐Lanthanide Single‐Molecule Magnet
Anomalous Magnetic Hysteresis up to 20 K in a Non‐Kramers Light‐Lanthanide Single‐Molecule Magnet Open
Light‐lanthanides (Ln), despite their widespread uses in commercial permanent magnets, are among the least explored metal elements as building blocks of single‐molecule magnets (SMMs) due to their smaller magnetic moments as well as weaker…
View article: Anomalous Magnetic Hysteresis up to 20 K in a Non‐Kramers Light‐Lanthanide Single‐Molecule Magnet
Anomalous Magnetic Hysteresis up to 20 K in a Non‐Kramers Light‐Lanthanide Single‐Molecule Magnet Open
Light‐lanthanides (Ln), despite their widespread uses in commercial permanent magnets, are among the least explored metal elements as building blocks of single‐molecule magnets (SMMs) due to their smaller magnetic moments as well as weaker…
View article: Enhancement of Spin Wave Transmission Through Antiferromagnet in Pt/NiO/CoFeB Heterostructure
Enhancement of Spin Wave Transmission Through Antiferromagnet in Pt/NiO/CoFeB Heterostructure Open
A significant enhancement of the spin current transmission through the antiferromagnetic insulating material NiO in Pt/NiO/CoFeB heterostructures was observed in this work. The ultrafast spin currents excited by laser pulses were injected …
View article: Temperature-driven spin reorientation transition in van der Waals Cr1.7Te2 ferromagnet
Temperature-driven spin reorientation transition in van der Waals Cr1.7Te2 ferromagnet Open
The phenomenon of spin reorientation transition in magnetic materials is truly captivating, as it involves a fascinating change in the direction of magnetic moments. However, the research on spin reorientation transition in two-dimensional…
View article: Nonsymmorphic symmetry protected nodal lines in layered topological semimetal Ta3GeTe6
Nonsymmorphic symmetry protected nodal lines in layered topological semimetal Ta3GeTe6 Open
Topological semimetals have garnered significant attention due to their distinctive physical properties. However, the ideal material platforms for studying these phenomena remain limited. Here, we report the synthesis and nontrivial topolo…
View article: Electric field control of perpendicular magnetic tunnel junctions with easy-cone magnetic anisotropic free layers
Electric field control of perpendicular magnetic tunnel junctions with easy-cone magnetic anisotropic free layers Open
Magnetic tunnel junctions (MTJs) are the core element of spintronic devices. Currently, the mainstream writing operation of MTJs is based on electric current with high energy dissipation, and it can be notably reduced if an electric field …
View article: An ultracompact scanning tunneling microscope within a Φ 10 piezo tube in a 20 T superconducting magnet
An ultracompact scanning tunneling microscope within a Φ 10 piezo tube in a 20 T superconducting magnet Open
Low-temperature scanning tunneling microscopy and spectroscopy (STM/S) help to better understand the fundamental physics of condensed matter. We present an ultracompact STM within a Φ 10 piezo tube in a 20 T superconducting magnet. The car…
View article: Tunable achromatic metalens for generating focused vortex beam in the near-infrared range
Tunable achromatic metalens for generating focused vortex beam in the near-infrared range Open
Highly precise and controllable focusing of optical vortex beams in the NIR range is essential for applications in biological imaging, nanomanipulation, and other fields. However, achieving tunable vortex beams across a broad spectrum rema…
View article: Activating the Basal Planes and Oxidized Oxygens in Layer‐Structured Na<sub>0.6</sub>CoO<sub>2</sub> for Boosted OER Activity
Activating the Basal Planes and Oxidized Oxygens in Layer‐Structured Na<sub>0.6</sub>CoO<sub>2</sub> for Boosted OER Activity Open
With the CoO 2 slabs consisting of Co 4 O 4 cubane structure, layered Na x CoO 2 are considered promising candidates for oxygen evolution reaction (OER) in alkaline media given their earth‐abundant and structural advantages. However, due t…
View article: Robust room temperature ferromagnetism in an itinerant van der Waals antiferromagnet
Robust room temperature ferromagnetism in an itinerant van der Waals antiferromagnet Open
The coexistence of antiferromagnetic and ferromagnetic order at room temperature in single-phase van der Waals materials, particularly within the two-dimensional limit, has attracted significant research interest. Nonetheless, such materia…
View article: New design, construction and evaluation of a stable scanning tunneling microscope with large-area searching and accurate positioning ability
New design, construction and evaluation of a stable scanning tunneling microscope with large-area searching and accurate positioning ability Open
Investigating micron-sized sample with high spatial resolution and energy resolution greatly promotes the development of materials science. Here we present a novel scanning tunneling microscope (STM) that offers a smaller tip-sample mechan…
View article: High energy x-ray Talbot-Lau interferometer employing a microarray anode-structured target source to extend the field of view
High energy x-ray Talbot-Lau interferometer employing a microarray anode-structured target source to extend the field of view Open
Objective . High energy and large field of view (FOV) phase contrast imaging is crucial for biological and even medical applications. Although some works have devoted to achieving a large FOV at high energy through bending gratings and so …
View article: Simultaneous Activation of Different Coordination Sites in Single-Phase FeCoMo<sub>3</sub>O<sub>8</sub> for the Oxygen Evolution Reaction
Simultaneous Activation of Different Coordination Sites in Single-Phase FeCoMo<sub>3</sub>O<sub>8</sub> for the Oxygen Evolution Reaction Open
ABMo3O8 is an emerging oxygen evolution reaction (OER) electrocatalyst, exhibiting dual coordination sites for transition metals with good conductivity. However, it is unclear which sites are active for the OER and how to activate them bot…
View article: Applying fully convolutional networks for beam profile and emittance measurements
Applying fully convolutional networks for beam profile and emittance measurements Open
The transverse cross-sectional size and emittance are critical beam parameters that characterize the performance of the accelerator and assess the state of the beam. Inspired by the success of machine learning in image processing tasks, we…
View article: Enhancement of spintronic terahertz emission enabled by increasing Hall angle and interfacial skew scattering
Enhancement of spintronic terahertz emission enabled by increasing Hall angle and interfacial skew scattering Open
Spintronic terahertz (THz) emitters (STEs) based on magnetic heterostructures have emerged as promising THz sources. However, it is still a challenge to achieve a higher intensity STE to satisfy all kinds of practical applications. Herein,…
View article: The Coexistence of Superconductivity and Topological Order in Van der Waals InNbS<sub>2</sub>
The Coexistence of Superconductivity and Topological Order in Van der Waals InNbS<sub>2</sub> Open
The research on systems with coexistence of superconductivity and nontrivial band topology has attracted widespread attention. However, the limited availability of material platforms severely hinders the research progress. Here, it reports…
View article: Anomalous Hall effect of van der Waals metallic antiferromagnetic V<sub>5</sub>Se<sub>8</sub>
Anomalous Hall effect of van der Waals metallic antiferromagnetic V<sub>5</sub>Se<sub>8</sub> Open
Two-dimensional (2D) magnetic materials have developed rapidly in recent years, which exhibited a lot of novel and interesting properties, such as the topological Hall effect, magnetic skyrmions and charge density waves. Most hitherto know…
View article: Spin State Disproportionation in Insulating Ferromagnetic LaCoO<sub>3</sub> Epitaxial Thin Films
Spin State Disproportionation in Insulating Ferromagnetic LaCoO<sub>3</sub> Epitaxial Thin Films Open
The origin of insulating ferromagnetism in epitaxial LaCoO 3 films under tensile strain remains elusive despite extensive research efforts are devoted. Surprisingly, the spin state of its Co ions, the main parameter of its ferromagnetism, …
View article: Observation of long-range ferromagnetism via anomalous supercurrents in a spin-orbit coupled superconductor
Observation of long-range ferromagnetism via anomalous supercurrents in a spin-orbit coupled superconductor Open
Conventional superconductors naturally disfavor ferromagnetism because the supercurrent-carrying electrons are paired into anti-parallel spin singlets. In superconductors with strong Rashba spin-orbit coupling, impurity magnetic moments in…
View article: Terahertz spin-to-charge conversion in ferromagnetic Ni nanofilms
Terahertz spin-to-charge conversion in ferromagnetic Ni nanofilms Open
Spintronic terahertz (THz) emission via spin-to-charge conversion (SCC) has been widely studied in ferromagnets (FM)/nonmagnets (NM) structures, in which various mechanisms of SCC have been confirmed in different NM materials. However, it …
View article: Synchronous defect passivation of all-inorganic perovskite solar cells enabled by fullerene interlayer
Synchronous defect passivation of all-inorganic perovskite solar cells enabled by fullerene interlayer Open
All-inorganic CsPbI3–xBrx perovskite solar cells (PSCs) are advantageous in terms of high thermal stability, while its efficiency lags behind those of organic-inorganic hybrid perovskite counterparts. Defect passivations have been extensiv…
View article: A compact, friction self-matching, non-inertial piezo motor with scanning capability
A compact, friction self-matching, non-inertial piezo motor with scanning capability Open
Maintaining friction matching is the core issue for non-inertial piezo motors (PMs); this challenge severely limits their application in complex conditions such as variable temperature environments. To address this issue, a compact, optima…
View article: Nonlinear Dielectric Response of Relaxor Ferroelectric (1 − <i>x</i>)Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub> − <i>x</i>PbTiO<sub>3</sub> Epitaxial Thin Films
Nonlinear Dielectric Response of Relaxor Ferroelectric (1 − <i>x</i>)Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub> − <i>x</i>PbTiO<sub>3</sub> Epitaxial Thin Films Open
Thin ferroelectric layers are capable of generating large dielectric and electromechanical responses at relatively low voltages, thus can be utilized in various applications including energy storage, energy harvesting, sensors, and actuato…
View article: Highly Oxidized Oxide Surface toward Optimum Oxygen Evolution Reaction by Termination Engineering
Highly Oxidized Oxide Surface toward Optimum Oxygen Evolution Reaction by Termination Engineering Open
The oxygen evolution reaction (OER) is a critical step for sustainable fuel production through electrochemistry process. Maximizing active sites of nanocatalyst with enhanced intrinsic activity, especially the activation of lattice oxygen,…
View article: Spin State Disproportionation in Insulating Ferromagnetic LaCoO3 Epitaxial Thin Films
Spin State Disproportionation in Insulating Ferromagnetic LaCoO3 Epitaxial Thin Films Open
The origin of insulating ferromagnetism in epitaxial LaCoO3 films under tensile strain remains elusive despite extensive research efforts have been devoted. Surprisingly, the spin state of its Co ions, the main parameter of its ferromagnet…