Orbital torque in magnetic bilayers
WebMotivated by the importance of understanding various competing mechanisms to the current-induced spin-orbit torque on magnetization in complex magnets, we develop a theory of current-induced spin-orbital coupled dynamics in magnetic heterostructures. The theory describes angular momentum transfer be … WebSo 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.
Orbital torque in magnetic bilayers
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WebOrbital torque in magnetic bilayers Dongjoon Lee, Dongwook Go, Hyeon-Jong Park, Wonmin Jeong, Hye-Won Ko, Deokhyun Yun, Daegeun Jo, Soogil Lee, Gyungchoon Go, Jung Hyun Oh, Kab-Jin Kim, Byong-Guk Park, Byoung-Chul Min, Hyun Cheol Koo, Hyun-Woo Lee, OukJae Lee, and Kyung-Jin Lee Nature Communications 12 , 6710 (2024) WebWe combined X-ray magnetic linear and circular dichroism together with magnetooptic Kerr effect measurements in order to follow the magnetic properties of epitaxial CoO(1 1 1)/Fe(1 1 0) and NiO(1 1 1)/Fe(1 1 0) bilayers.We find that in both studied cases ferromagnetic sublayer plays a dominant role and determines the magnetic state of the neighboring …
WebSep 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. WebAs the orbital current carries the angular momentum as the spin current does, injection of the orbital current into a ferromagnet can result in spin-torque on the magnetization, …
WebOct 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 ... WebApr 11, 2024 · We show that the orbital pumping in Ni/Ti bilayers injects an orbital current into the Ti layer, which is detected through the inverse orbital Hall effect. ... Efficient electrical generation of torque is desired to develop innovative magnetic nanodevices. The torque can be generated by charge to spin conversion of heavy-metal layers through ...
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...
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. the pt studio wiganWebNov 21, 2024 · Orbital torque in magnetic bilayers Nature Communications 12, 6710 (2024) These papers propose ways to experimentally measure the orbital current contribution to the torque on the magnetization in nonmagnet/ferromagnet heterostructures: Cr/ (Pt)/FM in the first study and (Ta,Pt)/FM in the second study, respectively. sign id unturnedWebJan 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]. signicharWebMay 19, 2024 · Despite its fundamental importance, the orbital Hall effect has not been confirmed experimentally. Motivated by a recent theoretical proposal of torque generation … signifence of druk dragonWebNov 18, 2024 · The orbital Hall effect describes the generation of the orbital current flowing in a perpendicular direction to an external electric field, analogous to the spin Hall effect. … sign ideas for small engine repair businessWebOne 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 … the pt zoneWebcurrent-induced torque in Fe/W(110), the dominant mechanism in Ni/W(110) is the orbital torque originating in the orbital Hall effect of the non-magnetic substrate. It leads to negative and positive effective spin Hall angles, respectively, which can be directly identified in experiments. This clearly demonstrates that our formalism is signifer romain