Orbital torque in magnetic bilayers
WebNov 18, 2024 · In this work, we use this sign relation between the orbital Hall current and spin Hall current to experimentally confirm the existence of OHE in transition metal bilayers consisting of a NM and a ferromagnet (FM), following a theoretical prediction 26 that OHE can generate a torque (orbital torque) when an orbital Hall current is injected into ... WebFeb 6, 2024 · The unconventional torque in the Ni/Ti bilayer is consistent with the orbital torque originating from the OHE in the Ti layer. We note that the sign of the DL-torque in …
Orbital torque in magnetic bilayers
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WebThe symmetry of normal metal/ferromagnet bilayers allows spin-orbit torques (SOTs) to simultaneously have two distinct angular dependences on the magnetization direction m̂. The most well-studied... WebJan 25, 2024 · The Gilbert damping constant is calculated in the torque-correlation model [4] and the results for Co films as well as Co/NM bilayers and Co/NM1/NM2 trilayers are presented. The nonlocal origin of the Gilbert damping is discussed and visualized with its atomic layer contributions [5,6].
WebWith this motivation, we examine the current-induced spin-orbit torques in various ferromagnet/heavy metal bilayers by theory and experiment. Analysis of the magnetic … WebSep 24, 2024 · Here, orbital information is encoded in coefficients , which can be controlled by external perturbations. For instance, a wave packet with and carries a finite orbital angular momentum (OAM) along the z -direction. Note that the coefficients behave as an "internal" degree of freedom of the wave packet, analogously to the case of spin.
WebApr 30, 2013 · It is found that the spin-orbital interaction induces both an effective field and torque on the magnetization, which have been attributed to two different origins: the Rashba effect and the... WebMay 19, 2024 · Despite its fundamental importance, the orbital Hall effect has not been confirmed experimentally. Motivated by a recent theoretical proposal of torque generation …
WebOne of the most efficient mechanisms for exciting magnetization dynamics and magnetic switching of a nanomagnet is the spin-orbit torque. Here, a charge current through a …
WebSep 14, 2024 · Orbital Hall effect in bilayer transition metal dichalcogenides: From the intra-atomic approximation to the Bloch states orbital magnetic moment approach Tarik P. Cysne, Sayantika Bhowal, Giovanni Vignale, and Tatiana G. Rappoport Phys. Rev. B 105195421 (2024) Spin-Orbit-Torque Efficiency and Current-Driven Coherent Magnetic … phillip clark mays johnson city tnWebFeb 4, 2008 · An experimental approach to the analysis of charge, magnetic and orbital ordering in 3d transition-metal oxides is presented. The technique combines two important components: azimuthal rotations around the Bragg wavevector and polarization analysis of the Bragg intensities in the range 500–900 eV. The polarization analysis is performed … phillip claus hürthWebOct 22, 2024 · We apply our formalism to two different magnetic bilayers, Fe/W(110) and Ni/W(110), which are chosen such that the orbital and spin Hall effects in W have opposite sign and the resulting spin- and orbital-mediated torques can compete with each other. ... (110) is the orbital torque originating in the orbital Hall effect of the nonmagnetic ... phillip clarkson obituaryWebJan 1, 2024 · Abstract. An emerging direction in spintronics aims at discovering novel phenomena and functionalities originating from spin–orbit coupling. The new field of spintronics based on the spin–orbit coupling is called spin-orbitronics. The spin-orbitronics technology promises smaller, faster, and far more energy efficient spin-based devices. trynia merin fanfictionWebSep 29, 2024 · The recently discovered “bulk” spin-orbit torques in L 1 0 -FePt provide an efficient and scalable way to manipulate the L 1 0 -FePt magnetization. However, the existence of an external field during the switching limits its practical application, and therefore field-free switching of L 1 0 -FePt is highly demanded. phillip clayborneWebSo far, the quantitative determination of charge current-induced spin current and spin–orbit torques (SOTs) on the magnetic layer adjacent to two-dimensional materials is still lacking. phillip clarksonWebApr 4, 2024 · Orbital torque in magnetic bilayers SPICE Orbital torque in magnetic bilayers Kyung-Jin LEE The orbital Hall effect [1] describes the generation of the orbital current flowing in a perpendicular direction to an external electric field, analogous to … trynfl.com