30 citations · 101 across the 16 of their papers we have counts for
16 papers
Reinforcement learning for spin torque oscillator tasks
Jakub Mojsiejuk, Sławomir Ziętek, Witold Skowroński
We address the problem of automatic synchronisation of the spintronic oscillator (STO) by means of reinforcement learning (RL). A numerical solution of the macrospin Landau-Lifschi…
Gate-tunable Exchange Bias and Voltage-controlled Magnetization Switching in a van der Waals Ferromagnet
Mayank Sharma, Garen Avedissian, Witold Skowroński +5
The discovery of van der Waals magnets has established a new domain in the field of magnetism, opening novel pathways for the electrical control of magnetic properties. In this con…
Substrate-induced spin-torque-like signal in spin-torque ferromagnetic resonance measurement
Dingsong Jiang, Hetian Chen, Guiping Ji +8
Oxide thin films and interfaces with strong spin-orbit coupling have recently shown exceptionally high charge-to-spin conversion, making them potential spin-source materials for sp…
Magnetization dynamics driven by displacement currents across a magnetic tunnel junction
C. K. Safeer, Paul S. Keatley, Witold Skowroński +11
Understanding the high-frequency transport characteristics of magnetic tunnel junctions (MTJs) is crucial for the development of fast-operating spintronics memories and radio frequ…
Magnon currents excited by the spin Seebeck effect in ferromagnetic EuS thin films
M. Xochitl Aguilar-Pujol, Sara Catalano, Carmen González-Orellana +7
A magnetic insulator is an ideal platform to propagate spin information by exploiting magnon currents. However, until now, most studies have focused on YFeO (YIG) an…
Angular harmonic Hall voltage and magnetoresistance measurements of Pt/FeCoB and Pt-Ti/FeCoB bilayers for spin Hall conductivity determination
Witold Skowroński, Krzysztof Grochot, Piotr Rzeszut +8
Materials with significant spin-orbit coupling enable efficient spin-to-charge interconversion, which can be utilized in novel spin electronic devices. A number of elements, mainly…
Multi-state MRAM cells for hardware neuromorphic computing
Piotr Rzeszut, Jakub Chęciński, Ireneusz Brzozowski +3
Magnetic tunnel junctions (MTJ) have been successfully applied in various sensing application and digital information storage technologies. Currently, a number of new potential app…
Microwave magnetic field modulation of spin torque oscillator based on perpendicular magnetic tunnel junctions
Witold Skowroński, Jakub Chęciński, Sławomir Ziętek +2
Modulation of a spin-torque oscillator (STO) signal based on a magnetic tunnel junction (MTJ) with perpendicularly magnetized free layer is investigated. Magnetic field inductive l…
High frequency voltage-induced ferromagnetic resonance in magnetic tunnel junctions
Witold Skowronski, Stanislaw Lazarski, Jakub Mojsiejuk +5
Voltage-induced ferromagnetic resonance (V-FMR) in magnetic tunnel junctions (MTJs) with a W buffer is investigated. Perpendicular magnetic anisotropy (PMA) energy is controlled by…
Biaxial magnetic field setup for angular magnetic measurements of thin films and spintronic nanodevices
Piotr Rzeszut, Witold Skowroński, Sławomir Ziętek +2
The biaxial magnetic-field setup for angular magnetic measurements of thin film and spintronic devices is designed and presented. The setup allows for application of the in-plane m…
Understanding stability diagram of perpendicular magnetic tunnel junctions
Witold Skowroński, Maiej Czapkiewicz, Sławomir Ziętek +4
Perpendicular magnetic tunnel junctions (MTJ) with a bottom pinned reference layer and a composite free layer (FL) are investigated. Different thicknesses of the FL were tested to…
Influence of intermixing at the Ta/CoFeB interface on spin Hall angle in Ta/CoFeB/MgO heterostructures
Monika Cecot, Lukasz Karwacki, Witold Skowronski +7
We investigate the spin Hall effect in perpendicularly magnetized Ta/Co40Fe40B20/MgO trilayers with Ta underlayers thicker than the spin diffusion length. The crystallographic stru…
Electric-field tunable spin waves in PMN-PT/NiFe heterostructure: experiment and micromagnetic simulations
Slawomir Zietek, Jakub Checinski, Marek Frankowski +2
We present a comprehensive theoretical and experimental study of voltage-controlled standing spin waves resonance (SSWR) in PMN-PT/NiFe multiferroic heterostructures patterned into…
Temperature dependence of spin-orbit torques in W/CoFeB bilayers
Witold Skowronski, Monika Cecot, Jaroslaw Kanak +7
We report on the temperature and layer thickness variation of spin-orbit torques in perpendicularly magnetized W/CoFeB bilayers. Harmonic Hall voltage measurements reveal dissimila…
Towards wafer scale inductive characterization of spin transfer torque critical current density of magnetic tunnel junction stacks
Sibylle Sievers, Niklas Liebing, Santiago Serrano-Guisan +12
We explore the prospects of wafer scale inductive probing of the critical current density for spin transfer torque switching of a CoFeB/MgO/CoFeB magnetic tunnel junction…
Inductive determination of the optimum tunnel barrier thickness in magnetic tunnelling junction stacks for spin torque memory applications
Santiago Serrano-Guisan, Witold Skowronski, Jerzy Wrona +5
We use pulsed inductive microwave magnetometry to study the precessional magnetization dynamics of the free layer in CoFeB/MgO/CoFeB based magnetic tunnelling junction stacks with…