65 citations · 220 across the 19 of their papers we have counts for
19 papers
Nonreciprocal spin-wave dispersion in magnetic bilayers
C. Heins, V. Iurchuk, O. Gladii +5
Nonreciprocal spin-wave propagation in bilayer ferromagnetic systems has attracted significant attention due to its potential to precisely quantify material parameters as well as f…
Strain-induced frequency pulling in CoFeB/Cu/Py double-vortex oscillators
Vadym Iurchuk, Jürgen Lindner, Jürgen Fassbender +1
We demonstrate piezostrain-induced frequency pulling in stacked double-vortex structures, magnetostatically coupled through the nonmagnetic spacer. We study the effect of the Cu sp…
Anatomy of localized edge modes in laterally coupled waveguides
Vadym Iurchuk, Sven Stienen, Jürgen Lindner +1
We present a systematic micromagnetic study of standing spin-wave modes in infinitely long Permalloy strips with rectangular cross-section. Using a finite-element dynamic-matrix me…
Excitation of the Gyrotropic Mode in a Magnetic Vortex by Time-Varying Strain
Vadym Iurchuk, Jürgen Lindner, Jürgen Fassbender +1
We demonstrate excitation of the gyrotropic mode in a magnetostrictive vortex by time-varying strain. The vortex dynamics is driven by a time-varying voltage applied to the piezoel…
Piezostrain -- a local handle to control gyrotropic dynamics in magnetic vortices
Vadym Iurchuk, Serhii Sorokin, Jürgen Lindner +2
We present a study of the piezostrain-tunable gyrotropic dynamics in CoFeB vortex microstructures fabricated on a 0.7PMN-0.3PT single crystalline substrate. Us…
All-electrical operation of a Curie-switch at room temperature
Vadym Iurchuk, Oleksii Kozlov, Serhii Sorokin +6
We present all-electrical operation of a FeCr-based Curie switch at room temperature. More specifically, we study the current-induced thermally-driven transition from f…
A strain-controlled magnetostrictive pseudo spin valve
Vadym Iurchuk, Julien Bran, Manuel Acosta +1
Electric-field control of magnetism via inverse magnetostrictive effect is an efficient path towards improving energy-efficient storage and sensing devices based on giant magnetore…
Tailoring crosstalk between localized 1D spin-wave nanochannels using focused ion beams
Vadym Iurchuk, Javier Pablo-Navarro, Tobias Hula +8
1D spin-wave conduits are envisioned as nanoscale components of magnonics-based logic and computing schemes for future generation electronics. `A-la-carte methods of versatile cont…
Effects of the rf current and bias field direction on the transition from linear to non-linear gyrotropic dynamics in magnetic vortex structures
Lakshmi Ramasubramanian, Vadym Iurchuk, Serhii Sorokin +2
We present a frequency-domain study of the dynamic behavior of a magnetic vortex core within a single Permalloy disk by means of electrical detection and micromagnetic simulations.…
Size-dependent enhancement of passive microwave rectification in magnetic tunnel junctions with perpendicular magnetic anisotropy
A. Sidi El Valli, V. Iurchuk, G. Lezier +11
Spintronic rf detectors were demonstrated, recently, for energy harvesting and wireless communication at low input power. Here we report on the optimization of the rectified output…
Ultra-fast GHz-range swept-tuned spectrum analyzer with 20 ns temporal resolution based on a spin-torque nano-oscillator with a uniformly magnetized 'free' layer
Artem Litvinenko, Ahmed Sidi El Valli, Vadym Iurchuk +5
The advantage of an ultra-fast frequency-tunability of spin-torque nano-oscillators (STNOs) that have large (> 100MHz) relaxation frequency of amplitude fluctuations is exploited t…
Stress-induced modification of gyration dynamics in stacked double-vortex structures studied by micromagnetic simulations
Vadym Iurchuk, Attila Kákay, Alina M. Deac
In this paper, using micromagnetic simulations, we investigate the stress-induced frequency tunability of double-vortex nano-oscillators comprising magnetostrictive and non-magneto…
Experimental demonstration of a rapid sweep-tuned spectrum analyzer with temporal resolution based on a spin-torque nano-oscillator
A. Litvinenko, V. Iurchuk, P. Sethi +8
It is demonstrated experimentally that a spin-torque nano-oscillator (STNO) rapidly sweep-tuned by a bias voltage can be used for time-resolved spectrum analysis of frequency-manip…
Optical Writing of Magnetic Properties by Remanent Photostriction
V. Iurchuk, D. Schick, J. Bran +13
We present an optically induced remanent photostriction in BiFeO3, resulting from the photovoltaic effect, which is used to modify the ferromagnetism of Ni film in a hybrid BiFeO3/…
Electrical Writing of Magnetic and Resistive Multistates in CoFe Films Deposited onto Pb[ZrTi]O
V. Iurchuk, B. Doudin, J. Bran +1
Electric control of magnetic properties is an important challenge for modern magnetism and spintronic development. In particular, an ability to write magnetic state electrically wo…
Multi-state and non-volatile control of graphene conductivity with surface electric fields
V. Iurchuk, H. Majjad, F. Chevrier +4
Planar electrodes patterned on a ferroelectric substrate are shown to provide lateral control of the conductive state of a two-terminal graphene stripe. A multi-level and on-demand…
Multistate nonvolatile straintronics controlled by a lateral electric field
V. Iurchuk, B. Doudin, B. Kundys
We present a multifunctional and multistate permanent memory device based on lateral electric field control of a strained surface. Sub-coercive electrical writing of a remnant stra…
Subcoercive and multilevel ferroelastic remnant states with resistive readout
B. Kundys, V. Iurchuk, C. Meny +2
Ferroelectric devices use their electric polarization ferroic order as the switching and storage physical quantity for memory applications. However, additional built-in physical qu…
Resonant state selection in synthetic ferrimagnets
B. C. Koop, Yu. I. Dzhezherya, K. Demishev +3
Resonant activation of a synthetic antiferromagnet (SAF) is known to result in a dynamic running state, where the SAF's symmetric spin-flop pair continuously rotates between the tw…