All Outputs (49)

Enhanced Photon–Phonon Interaction in WSe2 Acoustic Nanocavities (2024)
Journal Article

Acoustic nanocavities (ANCs) with resonance frequencies much above 1 GHz are prospective to be exploited in sensors and quantum operating devices. Nowadays, acoustic nanocavities fabricated from van der Waals (vdW) nanolayers allow them to exhibit re... Read More about Enhanced Photon–Phonon Interaction in WSe2 Acoustic Nanocavities.

Hybrid coherent control of magnons in a ferromagnetic phononic resonator excited by laser pulses (2024)
Journal Article

We propose and demonstrate the concept of hybrid coherent control (CC) whereby a quantum or classical harmonic oscillator is excited by two excitations: one is quasiharmonic (i.e., harmonic with a finite lifetime) and the other is a pulsed broadband... Read More about Hybrid coherent control of magnons in a ferromagnetic phononic resonator excited by laser pulses.

On-chip phonon-magnon reservoir for neuromorphic computing (2023)
Journal Article

Reservoir computing is a concept involving mapping signals onto a high-dimensional phase space of a dynamical system called “reservoir” for subsequent recognition by an artificial neural network. We implement this concept in a nanodevice consisting o... Read More about On-chip phonon-magnon reservoir for neuromorphic computing.

Bi2Se3 interlayer treatments affecting the Y3Fe5O12 (YIG) platinum spin Seebeck effect (2023)
Journal Article

In this work, we present a method to enhance the longitudinal spin Seebeck effect at platinum/yttrium iron garnet (Pt/YIG) interfaces. The introduction of a partial interlayer of bismuth selenide (Bi2Se3, 2.5% surface coverage) interfaces significant... Read More about Bi2Se3 interlayer treatments affecting the Y3Fe5O12 (YIG) platinum spin Seebeck effect.

Ultrafast magnetoacoustics in Galfenol nanostructures (2023)
Journal Article

Phonons and magnons are prospective information carriers to substitute the transfer of charge in nanoscale communication devices. Our ability to manipulate them at the nanoscale and with ultimate speed is examined by ultrafast acoustics and femtoseco... Read More about Ultrafast magnetoacoustics in Galfenol nanostructures.

Antiferromagnetic half-skyrmions electrically generated and controlled at room temperature (2023)
Journal Article

Topologically protected magnetic textures are promising candidates for information carriers in future memory devices, as they can be efficiently propelled at very high velocities using current-induced spin torques. These textures—nanoscale whirls in... Read More about Antiferromagnetic half-skyrmions electrically generated and controlled at room temperature.

Coherent Phononics of van der Waals Layers on Nanogratings (2022)
Journal Article

Strain engineering can be used to control the physical properties of two-dimensional van der Waals (2D-vdW) crystals. Coherent phonons, which carry dynamical strain, could push strain engineering to control classical and quantum phenomena in the unex... Read More about Coherent Phononics of van der Waals Layers on Nanogratings.

Transition magnon modes in thin ferromagnetic nanogratings (2022)
Journal Article

This work presents micromagnetic simulations in ferromagnetic nanogratings for the full range of directions of an applied in-plane external magnetic field. We focus on the modification of the magnon mode characteristics when the magnetic field orient... Read More about Transition magnon modes in thin ferromagnetic nanogratings.

Spectrum evolution and chirping of laser-induced spin wave packets in thin iron films (2022)
Journal Article

We present an experimental study of ultrafast optical excitation of magnetostatic surface spin wave (MSSW) packets and their spectral properties in thin films of pure iron. As the packets leave the excitation area and propagate in space, their spectr... Read More about Spectrum evolution and chirping of laser-induced spin wave packets in thin iron films.

Effect of magnetic anisotropy relaxation on laser-induced magnetization precession in thin galfenol films (2021)
Journal Article

The rate and pathways of relaxation of a magnetic medium to its equilibrium following excitation with intense and short laser pulses are the key ingredients of ultrafast optical control of spins. Here we study experimentally the evolution of the magn... Read More about Effect of magnetic anisotropy relaxation on laser-induced magnetization precession in thin galfenol films.

Protected Long-Distance Guiding of Hypersound Underneath a Nanocorrugated Surface (2021)
Journal Article

In nanoscale communications, high-frequency surface acoustic waves are becoming effective data carriers and encoders. On-chip communications require acoustic wave propagation along nanocorrugated surfaces which strongly scatter traditional Rayleigh w... Read More about Protected Long-Distance Guiding of Hypersound Underneath a Nanocorrugated Surface.

Magnetism and magnetoresistance in the critical region of a dilute ferromagnet (2021)
Journal Article

We present detailed experimental measurements and simulations of the field-dependent magnetization and magnetoresistance in the vicinity of the Curie temperature in the highly disordered dilute ferromagnetic semiconductor (Ga,Mn)As. The observed depe... Read More about Magnetism and magnetoresistance in the critical region of a dilute ferromagnet.

Magnon polaron formed by selectively coupled coherent magnon and phonon modes of a surface patterned ferromagnet (2020)
Journal Article

Strong coupling between two quanta of different excitations leads to the formation of a hybridized state which paves a way for exploiting new degrees of freedom to control phenomena with high efficiency and precision. A magnon polaron is the hybridiz... Read More about Magnon polaron formed by selectively coupled coherent magnon and phonon modes of a surface patterned ferromagnet.

Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer (2020)
Journal Article

Energy harvesting is a concept which makes dissipated heat useful by transferring thermal energy to other excitations. Most of the existing principles are realized in systems which are heated continuously. We present the concept of high-frequency ene... Read More about Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer.

Complementary Lateral‐Spin–Orbit Building Blocks for Programmable Logic and In‐Memory Computing (2020)
Journal Article

Complementary Lateral-Spin-Orbit Building Blocks for Programmable Logic and In-Memory Computing (2020)
Journal Article

Current-driven switching of nonvolatile spintronic materials and devices based on spin–orbit torques offer fast data processing speed, low power consumption, and unlimited endurance for future information processing applications. Analogous to convent... Read More about Complementary Lateral-Spin-Orbit Building Blocks for Programmable Logic and In-Memory Computing.

Low-energy switching of antiferromagnetic CuMnAs/GaP using sub-10 nanosecond current pulses (2020)
Journal Article

The recently discovered electrical-induced switching of antiferromagnetic (AF) materials that have spatial inversion asymmetry has enriched the field of spintronics immensely and opened the door for the concept of antiferromagnetic memory devices. Cu... Read More about Low-energy switching of antiferromagnetic CuMnAs/GaP using sub-10 nanosecond current pulses.

Spin flop and crystalline anisotropic magnetoresistance in CuMnAs (2020)
Journal Article

We report magnetic-field-induced rotation of the antiferromagnetic Néel vector in epitaxial CuMnAs thin films. First, using soft x-ray magnetic linear dichroism spectroscopy as well as magnetometry, we demonstrate spin-flop switching and continuous s... Read More about Spin flop and crystalline anisotropic magnetoresistance in CuMnAs.

Suppression of Dynamically Induced Stochastic Magnetic Behaviour through Materials Engineering (2020)
Journal Article

Stochastic behaviour fundamentally limits the performance and reliability of nanomagnetic devices. Typically, stochastic behaviour is assumed to be the result of simple thermal activation, but it may also be "dynamically induced" i.e. a direct result... Read More about Suppression of Dynamically Induced Stochastic Magnetic Behaviour through Materials Engineering.

Suppression of Dynamically Induced Stochastic Magnetic Behaviour through Materials Engineering (2020)
Journal Article

tochastic behavior fundamentally limits the performance and reliability of nanomagnetic devices. Typically, stochastic behavior is assumed to be the result of simple thermal activation, but it may also be “dynamically induced,” i.e., a direct result... Read More about Suppression of Dynamically Induced Stochastic Magnetic Behaviour through Materials Engineering.