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Polarization, denoting the precession direction with respect to the background magnetization, is an intrinsic degree of freedom of spin wave. Using magnetic textures to control the spin wave polarization is fundamental and indispensable…

Mesoscale and Nanoscale Physics · Physics 2021-11-10 Feiyang Ye , Jin Lan

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

Domain walls are the transition regions between two magnetic domains. These objects have been very relevant during the last decade, not only due to their intrinsic interest in the development of novel spintronics devices but also because of…

Mesoscale and Nanoscale Physics · Physics 2021-05-19 Oscar Alejos , Víctor Raposo , Eduardo Martínez

Spin waves (SW) can induce rich domain wall (DW) motion in a perpendicular-magnetic anisotropy nanostrip. In-plane magnetization tilt angle resulting from the fluctuation of the effective field of the magnetization response in the DW region…

Strongly Correlated Electrons · Physics 2017-07-07 Liang-Juan Chang , Yen-Fu Liu , Ming-Yi Kao , Li-Zai Tsai , Jun-Zhi Liang , Shang-Fan Lee

We have studied nucleation of magnetic domains and propagation of magnetic domain walls (DWs) induced by pulsed magnetic field in a ferromagnetic film with in-plane uniaxial anisotropy. Different from what have been seen up to now in…

Materials Science · Physics 2020-12-30 Xiaochao Zhou , Nicolas Vernier , Guillaume Agnus , Sylvain Eimer , Ya Zhai

Domain walls in magnetic multilayered systems can exhibit a very complex and fascinating behavior. For example, the magnetization of thin films of hard magnetic materials is in general perpendicular to the thin-film plane, thanks to the…

Mesoscale and Nanoscale Physics · Physics 2016-02-17 Alessandro Principi , Mikhail I. Katsnelson

The electric (E) field control of magnetic properties opens the prospects of an alternative to magnetic field or electric current activation to control magnetization. Multilayers with perpendicular magnetic anisotropy (PMA) have proven to…

We have studied the magnetization reversal of CoFeB-MgO nanodots with perpendicular anisotropy for size ranging from w=400 nm to 1 {\mu}m. Contrary to previous experiments, the switching field distribution is shifted toward lower magnetic…

Spin wave nonreciprocity in domain walls (DWs) allows for unidirectional signal processing in reconfigurable magnonic circuits. Using scanning transmission x-ray microscopy (STXM), we examined coherently-excited magnons propagating in…

The propagation of a magnetic domain wall (DW) in a submicron magnetic wire consisting of a magnetic/nonmagnetic/magnetic trilayered structure with asymmetric notches was investigated by utilizing the giant magnetoresistance effect. The…

Materials Science · Physics 2009-11-10 A. Himeno , T. Okuno , S. Kasai , T. Ono , S. Nasu , K. Mibu , T. Shinjo

Micromagnetic instabilities and non-uniform magnetization states play a significant role in spin transfer induced switching of nanometer scale magnetic elements. Here we model domain wall mediated switching dynamics in perpendicularly…

Mesoscale and Nanoscale Physics · Physics 2021-01-13 Nahuel Statuto , Jamileh Beik Mohammadi , Andrew D. Kent

We consider the dynamics of polarization of a single domain wall in a magnetic nanowire, which is strongly pinned by impurities. In this case the equation of motion for the polarization parameter does not include any other dynamical…

Mesoscale and Nanoscale Physics · Physics 2015-10-16 N. Sedlmayr , V. Dugaev , J. Berakdar

We investigate the inversion process of magnetic domain walls (DWs) propagating through synthetic noncollinear magnetic textures, whereby an up/down DW can be transformed into a down/up DW and vice versa. We exploit the lateral coupling…

From the pioneering work of Winter [Phys. Rev. 124, 452 (1961)], a magnetic domain wall of Bloch type is known to host a special wall-bound spin-wave mode, which corresponds to spin-waves being channeled along the magnetic texture. Using…

Mesoscale and Nanoscale Physics · Physics 2019-07-24 Yves Henry , Daniel Stoeffler , Joo-Von Kim , Matthieu Bailleul

The time and field dependence of the magnetic domain structure at magnetization reversal were investigated by Kerr microscopy in interacting ferromagnetic Co/Pt multilayers with perpendicular anisotropy. Large local inhomogeneous…

Materials Science · Physics 2018-07-26 S. Wiebel , J. P. Jamet , N. Vernier , A. Mougin , J. Ferre , V. Baltz , B. Rodmacq , B. Dieny

The magnetization in the domain walls (DWs) formed inside the inner core of the amorphous ferromagnetic microwire is studied within a simple analytical model proposed. The influence of the ordering in the internal-stress created outer shell…

Mesoscale and Nanoscale Physics · Physics 2015-09-10 Andrzej Janutka , Przemyslaw Gawronski

The geometry and morphology of magnetic domain walls (DWs) are closely related to their dynamics when driven by external forces. Under some reliable approximations DWs can be considered self-affine interfaces, so universal laws govern their…

Disordered Systems and Neural Networks · Physics 2023-12-29 P. Domenichini , G. Pasquini , M. G. Capeluto

Domain walls in soft permalloy strips may exhibit various equilibrium micromagnetic structures depending on the width and thickness of the strip, ranging from the well-known transverse and vortex walls in narrow and thin strips to double…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 Virginia Estevez , Lasse Laurson

In thin magnetic films with strong perpendicular anisotropy and strong demagnetizing field two ordered phases are possible. At low temperatures, perpendicularly oriented magnetic domains form a striped pattern. As temperature is increased…

Materials Science · Physics 2012-12-21 M. C. Ambrose R. L. Stamps

We present a phenomenological theory of altermagnets, that captures their unique magnetization dynamics and allows modelling magnetic textures in this new magnetic phase. Focusing on the prototypical d-wave altermagnets, e.g. RuO$_2$, we…

Mesoscale and Nanoscale Physics · Physics 2024-07-30 O. Gomonay , V. P. Kravchuk , R. Jaeschke-Ubiergo , K. V. Yershov , T. Jungwirth , L. Šmejkal , J. van den Brink , J. Sinova