Polar meron lattice in strained oxide ferroelectrics

YJ Wang, YP Feng, YL Zhu, YL Tang, LX Yang… - Nature Materials, 2020 - nature.com
A topological meron features a non-coplanar structure, whose order parameters in the core
region are perpendicular to those near the perimeter. A meron is half of a skyrmion, and both …

All-electrical 9-bit skyrmion-based racetrack memory designed with laser irradiation

B He, R Tomasello, X Luo, R Zhang, Z Nie… - Nano Letters, 2023 - ACS Publications
Racetrack memories with magnetic skyrmions have recently been proposed as a promising
storage technology. To be appealing, several challenges must still be faced for the …

Performance of synthetic antiferromagnetic racetrack memory: domain wall versus skyrmion

R Tomasello, V Puliafito, E Martinez… - Journal of Physics D …, 2017 - iopscience.iop.org
A storage scheme based on racetrack memory, where the information can be coded in a
domain or a skyrmion, seems to be an alternative to conventional hard disk drive for high …

Origin of temperature and field dependence of magnetic skyrmion size in ultrathin nanodots

R Tomasello, KY Guslienko, M Ricci, A Giordano… - Physical Review B, 2018 - APS
Understanding the physical properties of magnetic skyrmions is important for fundamental
research with the aim to develop new spintronic device paradigms where both logic and …

Spontaneous periodic polarization wave in helielectric fluids

J Zhou, Y Zou, J Li, M Huang, S Aya - PNAS nexus, 2023 - academic.oup.com
By analogy with spin waves in ferromagnetic systems, the polarization (or dipole) wave is
the electric counterpart that remains elusive. Here, we discover that the helielectricity, ie a …

Experimental demonstration of spintronic broadband microwave detectors and their capability for powering nanodevices

B Fang, M Carpentieri, S Louis, V Tiberkevich… - Physical Review …, 2019 - APS
Nonlinear dynamics has been the key ingredient to improve the performance, in terms of
sensitivity, of biased resonant spintronic diodes beyond their semiconductor counterparts …

Micromagnetic modeling of terahertz oscillations in an antiferromagnetic material driven by the spin Hall effect

V Puliafito, R Khymyn, M Carpentieri, B Azzerboni… - Physical Review B, 2019 - APS
The realization of terahertz (THz) sources is a fundamental aspect for a wide range of
applications. Over different approaches, compact THz oscillators can be realized, taking …

A spiking neuron constructed by the skyrmion-based spin torque nano-oscillator

X Liang, X Zhang, J Xia, M Ezawa, Y Zhao… - Applied Physics …, 2020 - pubs.aip.org
Magnetic skyrmions are particle-like topological spin configurations, which can carry binary
information and thus are promising building blocks for future spintronic devices. In this work …

Spin–orbit torque based physical unclonable function

G Finocchio, T Moriyama, R De Rose… - Journal of Applied …, 2020 - pubs.aip.org
This paper introduces the concept of spin–orbit-torque-magnetic random access memory
(SOT-MRAM) based physical unclonable function (PUF). The secret of the PUF is stored into …

Intrinsic DMI-free skyrmion formation and robust dynamic behaviors in magnetic hemispherical shells

J Yang, C Abert, D Suess, SK Kim - Scientific Reports, 2021 - nature.com
We performed finite-element micromagnetic simulations to examine the formation of
skyrmions without intrinsic Dzyaloshinskii–Moriya interaction (DMI) in magnetic …