Broadband ferromagnetic resonance system and methods for ultrathin magnetic films

E Montoya, T McKinnon, A Zamani, E Girt… - Journal of magnetism …, 2014 - Elsevier
Spintronics requires the development of magnetic thin film structures having a wide range of
magnetic properties. Ferromagnetic resonance (FMR) is a well understood experimental …

Exchange stiffness in thin film Co alloys

C Eyrich, W Huttema, M Arora, E Montoya… - Journal of Applied …, 2012 - pubs.aip.org
The exchange stiffness (A ex) is one of the key parameters controlling magnetization
reversal in magnetic materials. We used a method based on the spin spiral formation in two …

Effects of substitution on the exchange stiffness and magnetization of Co films

C Eyrich, A Zamani, W Huttema, M Arora, D Harrison… - Physical Review B, 2014 - APS
An antiferromagnetically coupled FM/NM/FM (FM= ferromagnet, NM= normal metal) trilayer
structure responds to an external magnetic field by the formation of a magnetic-moment …

Control of field- and current-driven magnetic domain wall motion by exchange bias in trilayers

BJ Jacot, S Vélez, P Noël, P Helbingk, F Binda… - Physical Review B, 2022 - APS
We investigate the motion of magnetic domain walls driven by magnetic fields and current-
driven spin-orbit torques in an exchange-biased system with perpendicular magnetization …

Coherent Magnons with Giant Nonreciprocity at Nanoscale Wavelengths

R Gallardo, M Weigand, K Schultheiss, A Kakay… - ACS …, 2024 - ACS Publications
Nonreciprocal wave propagation arises in systems with broken time-reversal symmetry and
is key to the functionality of devices, such as isolators or circulators, in microwave, photonic …

Low-temperature magnetic ordering in Co core/CoO shell nanoparticles on the copper surface

AL Danilyuk, ES Nazarenka, SA Vorobyova… - Current Applied …, 2023 - Elsevier
Cobalt/cobalt oxide nanoparticles electrochemically deposited onto a copper surface
revealed an unusual behavior of the coercivity and exchange bias at liquid helium …

[HTML][HTML] Effect of electric-field modulation of magnetic parameters on domain structure in MgO/CoFeB

T Dohi, S Kanai, A Okada, F Matsukura, H Ohno - AIP Advances, 2016 - pubs.aip.org
We observe magnetic domain structures of MgO/CoFeB with a perpendicular magnetic easy
axis under an electric field. The domain structure shows a maze pattern with electric-field …

Thermite synthesis, structural and magnetic properties of Co-Al2O3 nanocomposite films

VG Myagkov, LE Bykova, VS Zhigalov… - Journal of Alloys and …, 2017 - Elsevier
We have synthesized ferromagnetic nanocomposite Co-Al 2 O 3 thin films via a thermite
reaction between Al and Co 3 O 4 with layer geometry. The starting Al/Co 3 O 4 bilayers …

Nature of magnetic domains in an exchange coupled BiFeO3/CoFe heterostructure

DY Qiu, K Ashraf, S Salahuddin - Applied Physics Letters, 2013 - pubs.aip.org
We use the micromagnetic model to simulate magnetization in a multidomain BiFeO 3
(BFO)/CoFe bilayer. We show that CoFe couples to weak ferromagnetism on the BFO …

Noncollinear interlayer exchange coupling across IrFe spacer layers

J Besler, S Myrtle, E Girt - Journal of Magnetism and Magnetic Materials, 2023 - Elsevier
In this paper, we show that IrFe spacer layers enable the control of noncollinear interlayer
exchange coupling between ferromagnetic Co layers over a spacer layer composition and …