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The influence of long-range dipole interactions on two dimensional magnetism has been studied extensively in the spin-reorientation transition of ferromagnetic ultrathin films. Although there is a great deal of experimental information on…

Materials Science · Physics 2018-11-26 G. He , R. Belanger , P. H. Hguyen , D. Venus

We have investigated the relationship between the domain structure and the magnetic interactions in a series of FePt ferromagnetic thin films of varying thickness. As-made films grow in the magnetically soft and chemically disordered A1…

Materials Science · Physics 2014-02-27 N. Álvarez , E. Sallica Leva , R. C. Valente , M. Vásquez Mansilla , J. Gómez , J. Milano , A. Butera

Understanding and controlling the motion, stability, and equilibrium configuration of ferroelectric domain walls is key for their integration into potential nanoelectronics applications, such as ferroelectric racetrack memories. Using…

Disordered Systems and Neural Networks · Physics 2022-01-05 Guillaume Rapin , Sophia Ehrensperger , Cédric Blaser , Nirvana Caballero , Patrycja Paruch

We have investigated numerically the field-driven propagation of perpendicularly magnetized ferromagnetic layers. It was then compared to the historical one-dimensional domain wall (DW) propagation model widely used in spintronics studies…

Materials Science · Physics 2018-03-01 L. Thevenard , C. Gourdon , S. Haghgoo , J-P. Adam , H. J. von Bardeleben , A. Lemaître , W. Schoch , A. Thiaville

The elastic interaction between kinks (and antikinks) within domain walls plays a pivotal role in shaping the domain structure, and their dynamics. In bulk materials, kinks interact as elastic monopoles, dependent on the distance between…

Mesoscale and Nanoscale Physics · Physics 2024-11-04 John J R Scott , Guangming Lu , Brian J. Rodriguez , Ian MacLaren , Ekhard K. H. Salje , Miryam Arredondo

The domain wall dynamics driven by an out of plane magnetic field was measured for a series of magnetic trilayers with different strengths of the interfacial Dzyaloshinskii-Moriya interaction (DMI). The features of the field-driven domain…

Mesoscale and Nanoscale Physics · Physics 2021-07-20 J. Pena Gracia , A. Fassatoui , J. Vogel , A. Thiaville , S. Pizzini

Current induced domain wall (DW) motion has been investigated in a 600-nm wide nanowire using multilayer film with a structure of Ta(5 nm)/Pd(5 nm)/[CoFe(0.4 nm)/Pd(1.2 nm)]$_{15}$/Ta(5 nm)in terms of anomalous Hall effect measurements. It…

Mesoscale and Nanoscale Physics · Physics 2014-07-30 Zhaoliang Meng , Manoj Kumar , Jinjun Qiu , Guchang Han , Kie Leong Teo , Duc-The Ngo

The relation between domain wall motion and intensity of driven current is examined in a phenomenological theory where the kinetic energy is expanded as a series of polynomial function of current density just as the Landau phase transition…

Mesoscale and Nanoscale Physics · Physics 2016-01-06 Hao Yu

Dynamics of topological magnetic textures are typically induced externally by, e.g.~magnetic fields or spin/charge currents. Here, we demonstrate the effect of the internal-to-the-system geometry-induced motion of a domain wall in a curved…

Mesoscale and Nanoscale Physics · Physics 2018-08-29 Kostiantyn V. Yershov , Volodymyr P. Kravchuk , Denis D. Sheka , Oleksandr V. Pylypovskyi , Denys Makarov , Yuri Gaididei

With Monte Carlo simulations, we investigate the relaxation dynamics with a domain wall for magnetic systems at the critical temperature. The dynamic scaling behavior is carefully analyzed, and a dynamic roughening process is observed. For…

Statistical Mechanics · Physics 2012-02-08 N. J. Zhou , B. Zheng , D. P. Landau

The domain wall motion in a magnetic nanowire is examined theoretically in the regime where the domain wall driving force is weak and its competition against disorders is assisted by thermal agitations. Two types of driving forces are…

Mesoscale and Nanoscale Physics · Physics 2011-10-06 Jisu Ryu , Sug-Bong Choe , Hyun-Woo Lee

A model is studied for the theoretical description of nanoscale magnetic films with high perpendicular anisotropy. In the model the magnetic film is described in terms of single domain magnetic grains with Ising-like behavior, interacting…

Statistical Mechanics · Physics 2016-08-31 U. Nowak

We present a simple model of a domain wall in a thin-film ferromagnet. A domain wall is represented as a nonreciprocal string, on which transverse waves propagate with different speeds in opposite directions. The model has three parameters:…

Mesoscale and Nanoscale Physics · Physics 2018-09-19 Shu Zhang , Oleg Tchernyshyov

We study the dynamics of a ferromagnetic domain wall driven by an external magnetic field through a disordered medium. The avalanche-like motion of the domain walls between pinned configurations produces a noise known as the Barkhausen…

Statistical Mechanics · Physics 2009-10-31 Stefano Zapperi , Pierre Cizeau , Gianfranco Durin , H. Eugene Stanley

The motion of a domain wall in a two dimensional medium is studied taking into account the internal elastic degrees of freedom of the wall and geometrical pinning produced both by holes and sample boundaries. This study is used to analyze…

We analyze the electric current and magnetic field driven domain wall motion in perpendicularly magnetized ultrathin ferromagnetic films in the presence of interfacial Dzyaloshinskii-Moriya interaction and both out-of-plane and in-plane…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 Valeriy V. Slastikov , Cyrill B. Muratov , Jonathan M. Robbins , Oleg A. Tretiakov

We study existence and properties of one-dimensional edge domain walls in ultrathin ferromagnetic films with uniaxial in-plane magnetic anisotropy. In these materials, the magnetization vector is constrained to lie entirely in the film…

Analysis of PDEs · Mathematics 2018-02-07 Ross G. Lund , Cyrill B. Muratov , Valeriy V. Slastikov

The influence of the curvature on the dynamical properties of transversal domain walls in a thin antiferromagnetic wire is studied theoretically. Equations of motion for antiferromagnetic domain wall are obtained within the collective…

Strongly Correlated Electrons · Physics 2022-02-16 Kostiantyn V. Yershov

We use the high spatial sensitivity of the anomalous Hall effect in the ferromagnetic semiconductor Ga1-xMnxAs, combined with the magneto-optical Kerr effect, to probe the nanoscale elastic flexing behavior of a single magnetic domain wall…

Mesoscale and Nanoscale Physics · Physics 2011-12-08 A. L. Balk , M. E. Nowakowski , M. J. Wilson , D. W. Rench , P. Schiffer , D. D. Awschalom , N. Samarth

We explore the contributions of adiabatic and non-adiabatic spin-transfer torques (STT) of a spin-polarized current to the thermally activated creep motion of domain-walls in a thin (Ga,Mn)(As,P) film with perpendicular anisotropy. For a…

Mesoscale and Nanoscale Physics · Physics 2023-12-27 Lucas Javier Albornoz , Rebeca Díaz Pardo , Aristide Lemaître , Sebastian Bustingorry , Javier Curiale , Vincent Jeudy
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