Lane W. Martin
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View article: Control of out-of-plane anti-damping spin torque with a canted ferromagnetic spin source
Control of out-of-plane anti-damping spin torque with a canted ferromagnetic spin source Open
To achieve efficient anti-damping switching of nanoscale magnetic memories with perpendicular magnetic anisotropy using spin-orbit torque requires that the anti-damping spin-orbit torque have a strong out-of-plane component. The spin anoma…
View article: Terahertz-field activation of polar skyrons
Terahertz-field activation of polar skyrons Open
Unraveling collective modes arising from coupled degrees of freedom is crucial for understanding complex interactions in solids and developing new functionalities. Unique collective behaviors emerge when two degrees of freedom, ordered on …
View article: Colossal and tunable dielectric tunability in domain-engineered barium strontium titanate
Colossal and tunable dielectric tunability in domain-engineered barium strontium titanate Open
Realization of tunable materials that are multifunctional and maintain high performance in dynamically changing environments is a fundamental goal of science and engineering. Tunable dielectrics form the basis of a wide variety of communic…
View article: Direct determination of antiferroelectric-to-ferroelectric phase transition pathways in PbZrO$_3$ with Operando Electron Microscopy
Direct determination of antiferroelectric-to-ferroelectric phase transition pathways in PbZrO$_3$ with Operando Electron Microscopy Open
Under a sufficiently high applied electric field, a non-polar antiferroelectric material, such as \ce{PbZrO3}, can undergo a rapid transformation to a polar ferroelectric phase. While this behavior is promising for energy storage and elect…
View article: Operando Electron Microscopy of Nanoscale Electronic Devices on Non-Conductive Substrates
Operando Electron Microscopy of Nanoscale Electronic Devices on Non-Conductive Substrates Open
Achieving operating conditions comparable to ``bulk'' electronic devices, such as thin film capacitors, during \textit{operando} electron microscopy remains challenging, particularly when devices are grown on non-conductive substrates. Lim…
View article: Bulk‐Rashba Effect with Suppressed Spin Relaxation in a Polar Phase of Bi<sub>1‐</sub><i><sub>x</sub></i>In<sub>1+</sub><i><sub>x</sub></i>O<sub>3</sub>
Bulk‐Rashba Effect with Suppressed Spin Relaxation in a Polar Phase of Bi<sub>1‐</sub><i><sub>x</sub></i>In<sub>1+</sub><i><sub>x</sub></i>O<sub>3</sub> Open
The Rashba effect enables control over the spin degree of freedom, particularly in polar materials where the polar symmetry couples to Rashba‐type spin splitting. The exploration of this effect, however, has been hindered by the scarcity o…
View article: Morphogenesis of spin cycloids in a noncollinear antiferromagnet
Morphogenesis of spin cycloids in a noncollinear antiferromagnet Open
Pattern formation in spin systems with continuous-rotational symmetry (CRS) provides a powerful platform to study emergent complex magnetic phases and topological defects in condensed-matter physics. However, its understanding and correlat…
View article: Predicting Pulsed-Laser Deposition SrTiO<sub>3</sub> Homoepitaxy Growth Dynamics Using High-Speed Reflection High-Energy Electron Diffraction
Predicting Pulsed-Laser Deposition SrTiO<sub>3</sub> Homoepitaxy Growth Dynamics Using High-Speed Reflection High-Energy Electron Diffraction Open
Pulsed-laser deposition (PLD) is a powerful technique for growing complex oxides with controlled stoichiometry. To understand growth dynamics therein, it is common to leverage in situ spectroscopies, such as reflection high-energy e…
View article: Domain-Wall Enhanced Pyroelectricity
Domain-Wall Enhanced Pyroelectricity Open
Ferroelectric domain walls are not just static geometric boundaries between polarization domains; they are, in fact, dynamic and functional interfaces with the potential for diverse technological applications. While the roles of ferroelect…
View article: Large enhancement of ferroelectric properties of perovskite oxides via nitrogen incorporation
Large enhancement of ferroelectric properties of perovskite oxides via nitrogen incorporation Open
Perovskite oxides have a wide variety of physical properties that make them promising candidates for versatile technological applications including nonvolatile memory and logic devices. Chemical tuning of those properties has been achieved…
View article: Hidden domain boundary dynamics toward crystalline perfection
Hidden domain boundary dynamics toward crystalline perfection Open
A central paradigm of nonequilibrium physics concerns the dynamics of heterogeneity and disorder, impacting processes ranging from the behavior of glasses to the emergent functionality of active matter. Understanding these complex mesoscop…
View article: Symmetry-Based Phenomenological Model for Magnon Transport in a Multiferroic
Symmetry-Based Phenomenological Model for Magnon Transport in a Multiferroic Open
Magnons-carriers of spin information-can be controlled by electric fields in the multiferroic BiFeO_{3} (BFO), a milestone that brings magnons closer to application in future devices. The origin of magnon-spin currents in BFO, however, is …
View article: Interface effects in the phase determination of Hf0.5Zr0.5O2 epitaxial thin films
Interface effects in the phase determination of Hf0.5Zr0.5O2 epitaxial thin films Open
HfO2-based ferroelectrics show tremendous potential for applications in computing technologies, but questions remain as to what dictates the stabilization of the desired phase. Here, it is demonstrated that the substrate the film is grown …
View article: High sound pressure piezoelectric micromachined ultrasonic transducers using sputtered potassium sodium niobate
High sound pressure piezoelectric micromachined ultrasonic transducers using sputtered potassium sodium niobate Open
This work presents air-coupled piezoelectric micromachined ultrasonic transducers (pMUTs) with high sound pressure level (SPL) under low-driving voltages by utilizing sputtered potassium sodium niobate K 0.34 Na 0.66 NbO 3 (KNN) films. A p…
View article: Symmetry-based phenomenological model for magnon transport in a multiferroic
Symmetry-based phenomenological model for magnon transport in a multiferroic Open
Magnons carriers of spin information can be controlled by electric fields in the multiferroic BiFeO$_3$ (BFO), a milestone that brings magnons closer to application in future devices. The origin of magnon-spin currents in BFO, however, is …
View article: Highly Responsive Polar Vortices in All‐Ferroelectric Heterostructures
Highly Responsive Polar Vortices in All‐Ferroelectric Heterostructures Open
The discovery of polar vortices and skyrmions in ferroelectric‐dielectric superlattices [such as (PbTiO 3 ) n /(SrTiO 3 ) n ] has ushered in an era of novel dipolar topologies and corresponding emergent phenomena. The key to creating such …
View article: In <sub>2</sub> Se <sub>3</sub> Synthesized by the FWF Method for Neuromorphic Computing
In <sub>2</sub> Se <sub>3</sub> Synthesized by the FWF Method for Neuromorphic Computing Open
The development of next‐generation in‐memory and neuromorphic computing can be realized with memory transistors based on 2D ferroelectric semiconductors. Among these, In 2 Se 3 is the interesting since it possesses ferroelectricity in 2D q…
View article: Morphogenesis of Spin Cycloids in a Non-collinear Antiferromagnet
Morphogenesis of Spin Cycloids in a Non-collinear Antiferromagnet Open
Pattern formation in spin systems with continuous-rotational symmetry (CRS) provides a powerful platform to study emergent complex magnetic phases and topological defects in condensed-matter physics. However, its understanding and correlat…
View article: Author Correction: Non-equilibrium pathways to emergent polar supertextures
Author Correction: Non-equilibrium pathways to emergent polar supertextures Open
View article: On-demand nanoengineering of in-plane ferroelectric topologies
On-demand nanoengineering of in-plane ferroelectric topologies Open
View article: Non-equilibrium pathways to emergent polar supertextures
Non-equilibrium pathways to emergent polar supertextures Open
View article: Interplay between Point and Extended Defects and Their Effects on Jerky Domain-Wall Motion in Ferroelectric Thin Films
Interplay between Point and Extended Defects and Their Effects on Jerky Domain-Wall Motion in Ferroelectric Thin Films Open
Defects have a significant influence on the polarization and electromechanical properties of ferroelectric materials. Statistically, they can be seen as random pinning centers acting on an elastic manifold, slowing domain-wall propagation …
View article: Unveiling the Nanoscale Dielectric Gap and Its Influence on Ferroelectric Polarization Switching in Scanning Probe Microscopy
Unveiling the Nanoscale Dielectric Gap and Its Influence on Ferroelectric Polarization Switching in Scanning Probe Microscopy Open
The dielectric gap between the scanning probe microscopy (SPM) tip and the surface of a ferroelectric using conductive atomic force microscopy and piezoresponse force microscopy (PFM) is investigated. While the gap functions as a dielectri…
View article: Bridging experiment and theory of relaxor ferroelectrics at the atomic scale with multislice electron ptychography
Bridging experiment and theory of relaxor ferroelectrics at the atomic scale with multislice electron ptychography Open
Introducing structural and/or chemical heterogeneity into otherwise ordered crystals can dramatically alter material properties. Lead-based relaxor ferroelectrics are a prototypical example, with decades of investigation having connected c…
View article: Flexoelectric Enhancement of Strain Gradient Elasticity Across a Ferroelectric-to-Paraelectric Phase Transition
Flexoelectric Enhancement of Strain Gradient Elasticity Across a Ferroelectric-to-Paraelectric Phase Transition Open
We study the temperature dependent elastic properties of Ba0.8Sr0.2TiO3 freestanding membranes across the ferroelectric-to-paraelectric phase transition using an atomic force microscope. The bending rigidit…
View article: Designed Spin‐Texture‐Lattice to Control Anisotropic Magnon Transport in Antiferromagnets
Designed Spin‐Texture‐Lattice to Control Anisotropic Magnon Transport in Antiferromagnets Open
Spin waves in magnetic materials are promising information carriers for future computing technologies due to their ultra‐low energy dissipation and long coherence length. Antiferromagnets are strong candidate materials due, in part, to the…
View article: Non-volatile magnon transport in a single domain multiferroic
Non-volatile magnon transport in a single domain multiferroic Open
Antiferromagnets have attracted significant attention in the field of magnonics, as promising candidates for ultralow-energy carriers for information transfer for future computing. The role of crystalline orientation distribution on magnon…
View article: Optical Control of Adaptive Nanoscale Domain Networks
Optical Control of Adaptive Nanoscale Domain Networks Open
Adaptive networks can sense and adjust to dynamic environments to optimize their performance. Understanding their nanoscale responses to external stimuli is essential for applications in nanodevices and neuromorphic computing. However, it …
View article: Heterogeneous field response of hierarchical polar laminates in relaxor ferroelectrics
Heterogeneous field response of hierarchical polar laminates in relaxor ferroelectrics Open
Understanding the microscopic origin of the superior electromechanical response in relaxor ferroelectrics requires knowledge not only of the atomic-scale formation of polar nanodomains (PNDs) but also the rules governing the arrangements a…
View article: Optical Control of Adaptive Nanoscale Domain Networks
Optical Control of Adaptive Nanoscale Domain Networks Open
Adaptive networks can sense and adjust to dynamic environments to optimize their performance. Understanding their nanoscale responses to external stimuli is essential for applications in nanodevices and neuromorphic computing. However, it …