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Our first-principles study has revealed unexpected spin polarization of the Pd(001) substrate in contact with antiferromagnetic CoO overlayers. We give an evidence that the ferromagnetism of Pd is caused by the zigzag positions of Co atoms…

Materials Science · Physics 2015-02-19 S. K. Saha , V. S. Stepanyuk , J. Kirschner

Here, we show that the ferro(para)magnetic and non-collinear antiferromagnetic interfaces contribute to oscillating signals observed in the magnetoresistance. We associate the effect with the fact that the spins on the surface of IrMn3…

Applied Physics · Physics 2024-09-24 Thiago Ferro , Luana Hildever , André José , José Holanda

We experimentally investigated disordered PtxCo1-x (here x: 0.4, 0.5 and 0.6) alloy thin films magnetic properties which depended on Pt content. The magnetic properties of PtCo films were described with two effects, one of them is the…

Materials Science · Physics 2014-01-28 Mustafa Erkovan , Melek Türksoy Öcal , Osman Öztürk

We report on the strong coupling between a metallic ferromagnetic Fe75Co25 thin film patterned element and a range of superconducting Nb half-wavelength co-planar waveguide (CPW) resonators. By varying the volume of the ferromagnet we…

Other Condensed Matter · Physics 2021-05-19 I. W. Haygood , M. R. Pufall , E. R. J. Edwards , Justin M. Shaw , W. H. Rippard

PbZr0.52Ti0.48O3/La0.67Sr0.33MnO3(PZT/LSMO) bilayer with surface roughness ~ 1.8 nm thin films have been grown by pulsed laser deposition on LaAlO3(LAO) substrates. High remnant polarization (30-54 micro C/cm2), dielectric…

Materials Science · Physics 2015-05-18 Sandra Dussan , Ashok Kumar , J. F. Scott , Ram S. Katiyar

In this work, we report on modelling results obtained with our recently developed simulation tool enabling nanoscopic description of electronic processes in X-ray irradiated ferromagnetic materials. With this tool, we have studied the…

The magnetization characteristic in a permalloy thin strip is investigated by electrically measuring the anisotropic magnetoresistance and ferromagnetic resonance in in-plane and out-of-plane configurations. Our results indicate that the…

Materials Science · Physics 2014-03-05 Ziqian Wang , Guolin Yu , Xinzhi Liu , Bo Zhang , Xiaoshuang Chen , Wei Lu

Magnetic anisotropy (MA) plays a crucial role in deciding both static and dynamic behaviour of magnetic thin films. It controls various phenomena, such as magnetization reversal, domain formation, domain-wall motion, spin-wave generation,…

Materials Science · Physics 2026-02-04 Kirti Kirti , Baisali Ghadai , Abinash Mishra , Rahulkrishnan R , Sucheta Mondal

Using measurements of the spectra of microwave-frequency resistance oscillations, we determine the phase diagram of magnetic excitations caused by torques from DC spin-polarized currents in (thin permalloy)/copper/(thick permalloy)…

Structurally similar transition metal systems can have widely differing magnetic properties. A prime example of this is found for bilayers on Ir(111), where Pd/Fe/Ir(111) ground state has a well-established noncollinear spin texture, while…

Materials Science · Physics 2022-07-22 I. P. Miranda , A. B. Klautau , A. Bergman , H. M. Petrilli

Magnetoelectric (ME) interactions in layered structures of magnetostrictive and piezoelectric phases are mediated by mechanical deformation. Here we discuss the frequency dependence of ME coupling in bilayers and trilayers of Permendur, a…

Materials Science · Physics 2009-11-10 U. Laletsin , N. Padubnaya , G. Srinivasan , C. P. DeVreugd

Ultrafast magnetization dynamics in metallic heterostructures consists of a combination of local demagnetization in the ferromagnetic constituent and spin-dependent transport contributions within and in between the constituents. Separation…

Interface effect in complex oxide thin film heterostructures lies at the vanguard of current research to design technologically relevant functionality and explore emergent physical phenomena. While most of the previous works focus on the…

Materials Science · Physics 2019-01-30 B. C. Behera , Subhadip Jana , Shwetha G. Bhat , G. Tripathy , P. S. Anil Kumar , D. Samal

We present an x-ray spectromicroscopic investigation of single-crystalline magnetic FeMn/Co bilayers on Cu(001), using X-ray magnetic circular (XMCD) and linear (XMLD) dichroism at the Co and Fe L3 absorption edges in combination with…

Materials Science · Physics 2007-06-13 W. Kuch , F. Offi , L. I. Chelaru , J. Wang , K. Fukumoto , M. Kotsugi , J. Kirschner , J. Kunes

Sputtered thin films of binary YxCo1-x with 0 < x < 0.54 and thickness 15 nm are investigated to help understand the ferromagnetism of cobalt in amorphous rare-earth cobalt alloys. The magnetic moment per cobalt falls to zero at x0 = 0.50,…

Materials Science · Physics 2023-10-02 Zexiang Hu , Jean Besbas , Katarzyna Siewierska , Ross Smith , Plamen Stamenov , J. M. D. Coey

We present Magnetic Resonance Force Microscopy (MRFM) measurements of Ferromagnetic Resonance (FMR) in a 50 nm thick permalloy film, tilted with respect to the direction of the external magnetic field. At small probe-sample distances the…

The ability to controllably manipulate the laser-induced ultrafast magnetic dynamics is a prerequisite for future high speed spintronic devices. The optimization of devices requires the controllability of the ultrafast demagnetization time,…

Mesoscale and Nanoscale Physics · Physics 2018-02-14 Wei Zhang , Wei He , Xiang-Qun Zhang , Zhao-Hua Cheng , Jiao Teng , Manfred Fähnle

An efficient way for the control of spin wave propagation in a magnetic medium is the use of periodic patterns known as magnonic crystals (MCs). However, the fabrication of MCs especially bi-components, with periodicity on nanoscale, is a…

Mesoscale and Nanoscale Physics · Physics 2017-09-20 M. Mruczkiewicz , P. Graczyk , P. Lupo , A. Adeyeye , G. Gubbiotti , M. Krawczyk

Using frequency-domain finite element calculations cross-checked with micromagnetic simulations, we demonstrate that the phase of spin waves reflected from an interface between a permalloy film and a bilayer can be controlled by changing…

Mesoscale and Nanoscale Physics · Physics 2020-09-23 Krzysztof Sobucki , Wojciech Śmigaj , Justyna Rychły , Maciej Krawczyk , Paweł Gruszecki

We present a systematic study of the magnetic proximity effect in Pt, depending on the magnetic moment and anisotropy of adjacent metallic ferromagnets. Element-selective x-ray resonant magnetic reflectivity measurements at the Pt…

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