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This study reports the effects of post-growth He$^+$ irradiation on the magneto-elastic properties of a $Ni$ /$Fe$ multi-layered stack. The progressive intermixing caused by He$^+$ irradiation at the interfaces of the multilayer allows us…

Hybrid multiferroic films are fabricated by depositing of Pt/Co/Pt multilayers onto [001] and [110] cuts of PMN-PT crystal. The dependence of the interfacial Dzyaloshinskii-Moriya interaction (iDMI) on applied electric field is…

Materials Science · Physics 2024-01-10 O. G. Udalov , R. V. Gorev , N. S. Gusev , A. V. Sadovnikov , M. V. Sapozhnikov

The Interlayer Dzyaloshinskii-Moriya interaction (IL-DMI) chirally couples spins in different ferromagnetic layers of multilayer heterostructures. So far, samples with IL-DMI have been investigated utilizing magnetometry and…

In chiral magnetic materials, numerous intriguing phenomena such as built in chiral magnetic domain walls (DWs) and skyrmions are generated by the Dzyaloshinskii Moriya interaction (DMI). The DMI also results in asymmetric DW speed under in…

We elucidate magnetic effects in the skyrmion system to probe into the dense nuclear matter. We find a deformed $\pi^0$ dipole structure of a baryon induced by a magnetic field. We then extend our scope to stacked Skyrme crystal layers to…

High Energy Physics - Phenomenology · Physics 2022-03-07 Shi Chen , Kenji Fukushima , Zebin Qiu

Spontaneous symmetry breakings, metal-insulator transitions, and transport properties of magnetic-domain-wall states in pyrochlore iridium oxides are studied by employing a symmetry adapted effective hamiltonian with a slab perpendicular to…

Strongly Correlated Electrons · Physics 2016-06-01 Youhei Yamaji , Masatoshi Imada

Skyrmions are magnetic bubbles with nontrivial topology envisioned as data bits for ultrafast and power-efficient spintronic memory and logic devices. They may be stabilized in heavy-metal/ferromagnetic/oxide trilayer systems. The skyrmion…

The recently discovered interlayer Dzyaloshinskii-Moriya interaction (IL-DMI) in multilayers with perpendicular magnetic anisotropy favors the canting of spins in the in-plane direction and could thus enable new exciting spin textures such…

There has been a plethora of studies on domain wall dynamics in magnetic nanostrips, mainly because of its versatile non-linear physics and potential applications in data storage devices. However, most of the studies focus on out-of-plane…

Mesoscale and Nanoscale Physics · Physics 2022-07-27 Zhoujian Sun , Panpan Fang , Xinwei Shi , X. S. Wang , Fuxiang Li

Devising magnetic nanostructures with spatially heterogeneous Dzyaloshinskii-Moriya interaction (DMI) is a promising pathway towards advanced confinement and control of magnetic skyrmions in potential devices. Here we discuss theoretically…

Mesoscale and Nanoscale Physics · Physics 2019-03-13 Raí M. Menezes , Jeroen Mulkers , Clécio C. de Souza Silva , Milorad V. Milošević

The perpendicular magnetic anisotropy K$_e$$_f$$_f$, magnetization reversal, and field-driven domain wall velocity in the creep regime are modified in Pt/Co(0.85-1.0 nm)/Pt thin films by strain applied via piezoelectric transducers.…

Mesoscale and Nanoscale Physics · Physics 2015-03-20 P. M. Shepley , A. W. Rushforth , M. Wang , G. Burnell , T. A. Moore

We report current-induced domain wall motion (CIDWM) in Ta\Co20Fe60B20\MgO nanowires. Domain walls are observed to move against the electron flow when no magnetic field is applied, while a field along the nanowires strongly affects the…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 R. Lo Conte , E. Martinez , A. Hrabec , A. Lamperti , T. Schulz , L. Nasi , L. Lazzarini , F. Maccherozzi , S. S. Dhesi , B. Ocker , C. H. Marrows , T. A. Moore , M. Klaeui

Multilayers of Co90Fe10/Pd with different bilayer thicknesses, have been deposited by dc-magnetron sputtering on thermally oxidized Si wafers. Transmission electron microscopy showed that the highly textured crystalline films had columnar…

Materials Science · Physics 2015-06-23 Desai Zhang , Justin M. Shaw , David J. Smith , Martha R. McCartney

The interfacial Dzyaloshinksii-Moriya interaction (iDMI) is of great interest in thin-film magnetism because of its ability to stabilize chiral spin textures. It can be quantified by investigating the frequency non-reciprocity of oppositely…

Interfacial Dzyaloshinskii-Moriya interaction (DMI) has long been observed in normal metal/ferromagnetic multilayers, enabling the formation of chiral domain walls, skyrmions and other 2D antisymmetric spin textures confined within a single…

Materials Science · Physics 2023-05-12 Yu-Hao Huang , Chao-Chung Huang , Wei-Bang Liao , Tian-Yue Chen , Chi-Feng Pai

Magnetic skyrmions are nanoscale spin structures recently discovered at room temperature (RT) in multilayer films. Employing their novel topological properties towards exciting technological prospects requires a mechanistic understanding of…

Mesoscale and Nanoscale Physics · Physics 2018-02-13 Bhartendu Satywali , Fusheng Ma , Shikun He , M. Raju , Volodymyr P. Kravchuk , Markus Garst , Anjan Soumyanarayanan , C. Panagopoulos

An external off-resonant pumping is proposed as a tool to control the Dzyaloshinskii-Moriya interaction (DMI) in ferromagnetic layers with strong spin-orbit coupling. Combining theoretical analysis with numerical simulations for an…

Materials Science · Physics 2017-10-10 D. Yudin , D. R. Gulevich , M. Titov

Magnetic moments in atomic scale domain walls formed in nanoconstrictions and nanowires are softened which affects dramatically the domain wall resistance. We perform ab initio calculations of the electronic structure and conductance of…

Materials Science · Physics 2009-11-11 J. D. Burton , R. F. Sabirianov , S. S. Jaswal , E. Y. Tsymbal , O. N. Mryasov

Domain wall motion induced by nanosecond current pulses in nanostripes with perpendicular magnetic anisotropy (Pt/Co/AlO$_x$) is shown to exhibit negligible inertia. Time-resolved magnetic microscopy during current pulses reveals that the…

Extended numerical simulations enable to ascertain the diffusive behavior at finite temperatures of chiral walls and skyrmions in ultra-thin model Co layers exhibiting symmetric - Heisenberg - as well as antisymmetric -…

Mesoscale and Nanoscale Physics · Physics 2018-08-01 Jacques Miltat , Stanislas Rohart , André Thiaville
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