Search Results - "Buhrman, A"

Spin-Orbit Torques in Heavy-Metal-Ferromagnet Bilayers with Varying Strengths of Interfacial Spin-Orbit Coupling by Zhu, Lijun, Ralph, D C, Buhrman, R A

“…Despite intense efforts it has remained unresolved whether and how interfacial spin-orbit coupling (ISOC) affects spin transport across heavy-metal…”
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Effective Spin-Mixing Conductance of Heavy-Metal-Ferromagnet Interfaces by Zhu, Lijun, Ralph, Daniel C, Buhrman, Robert A

“…The effective spin-mixing conductance (G_{eff}^{↑↓}) of a heavy-metal-ferromagnet (HM-FM) interface characterizes the efficiency of the interfacial spin…”
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Fully Spin-Transparent Magnetic Interfaces Enabled by the Insertion of a Thin Paramagnetic NiO Layer by Zhu, Lijun, Zhu, Lujun, Buhrman, Robert A

“…Spin backflow and spin-memory loss have been well established to considerably lower the interfacial spin transmissivity of metallic magnetic interfaces and…”
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Spin-torque ferromagnetic resonance induced by the spin Hall effect by Liu, Luqiao, Moriyama, Takahiro, Ralph, D C, Buhrman, R A

“…We demonstrate that the spin Hall effect in a thin film with strong spin-orbit scattering can excite magnetic precession in an adjacent ferromagnetic film. The…”
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Current-induced switching of perpendicularly magnetized magnetic layers using spin torque from the spin Hall effect by Liu, Luqiao, Lee, O J, Gudmundsen, T J, Ralph, D C, Buhrman, R A

“…We show that in a perpendicularly magnetized Pt/Co bilayer the spin-Hall effect (SHE) in Pt can produce a spin torque strong enough to efficiently rotate and…”
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Control of spin–orbit torques through crystal symmetry in WTe2/ferromagnet bilayers by MacNeill, D., Stiehl, G. M., Guimaraes, M. H. D., Buhrman, R. A., Park, J., Ralph, D. C.

“…Recent discoveries regarding current-induced spin–orbit torques produced by heavy-metal/ferromagnet and topological-insulator/ferromagnet bilayers provide the…”
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Spin Torque Study of the Spin Hall Conductivity and Spin Diffusion Length in Platinum Thin Films with Varying Resistivity by Nguyen, Minh-Hai, Ralph, D C, Buhrman, R A

“…We report measurements of the spin torque efficiencies in perpendicularly magnetized Pt/Co bilayers where the Pt resistivity ρ_{Pt} is strongly dependent on…”
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Strong Damping‐Like Spin‐Orbit Torque and Tunable Dzyaloshinskii–Moriya Interaction Generated by Low‐Resistivity Pd1−xPtx Alloys by Zhu, Lijun, Sobotkiewich, Kemal, Ma, Xin, Li, Xiaoqin, Ralph, Daniel C., Buhrman, Robert A.

“…Despite their great promise for providing a pathway for very efficient and fast manipulation of magnetization, spin‐orbit torque (SOT) operations are currently…”
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Nanosecond-Timescale Low Energy Switching of In-Plane Magnetic Tunnel Junctions through Dynamic Oersted-Field-Assisted Spin Hall Effect by Aradhya, S. V, Rowlands, G. E, Oh, J, Ralph, D. C, Buhrman, R. A

“…We investigate fast-pulse switching of in-plane-magnetized magnetic tunnel junctions (MTJs) within 3-terminal devices in which spin-transfer torque is applied…”
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Magnetic oscillations driven by the spin Hall effect in 3-terminal magnetic tunnel junction devices by Liu, Luqiao, Pai, Chi-Feng, Ralph, D C, Buhrman, R A

“…We show that a direct current in a tantalum microstrip can induce steady-state magnetic oscillations in an adjacent nanomagnet through spin torque from the…”
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Unveiling the Mechanism of Bulk Spin‐Orbit Torques within Chemically Disordered FexPt1‐x Single Layers by Zhu, Lijun, Ralph, Daniel C., Buhrman, Robert A.

“…The recent discovery of spin‐orbit torques (SOTs) within magnetic single‐layers has attracted attention. However, it remains elusive as to how to understand…”
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Effects of Anisotropic Strain on Spin–Orbit Torque Produced by the Dirac Nodal Line Semimetal IrO2 by Bose, Arnab, Nelson, Jocienne N, Zhang, Xiyue S, Jadaun, Priyamvada, Jain, Rakshit, Schlom, Darrell. G, Ralph, Daniel. C, Muller, David. A, Shen, Kyle. M, Buhrman, Robert. A

“…We report spin-torque ferromagnetic resonance studies of the efficiency of the damping-like (ξDL) spin–orbit torque exerted on an adjacent ferromagnet film by…”
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Observation of Strong Bulk Damping‐Like Spin‐Orbit Torque in Chemically Disordered Ferromagnetic Single Layers by Zhu, Lijun, Zhang, Xiyue S., Muller, David A., Ralph, Daniel C., Buhrman, Robert A.

“…Strong damping‐like spin‐orbit torque (τDL) has great potential for enabling ultrafast energy‐efficient magnetic memories, oscillators, and logic. So far, the…”
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Spin-Torque Switching with the Giant Spin Hall Effect of Tantalum by Liu, Luqiao, Pai, Chi-Feng, Li, Y., Tseng, H. W., Ralph, D. C., Buhrman, R. A.

“…Spin currents can apply useful torques in spintronic devices. The spin Hall effect has been proposed as a source of spin current, but its modest strength has…”
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Enhanced spin Hall torque efficiency in Pt100−xAlx and Pt100−xHfx alloys arising from the intrinsic spin Hall effect by Minh-Hai, Nguyen, Zhao Mengnan, Buhrman, R A

“…We report that the spin Hall torque generated by Pt can be enhanced substantially by alloying with Al or Hf. We observe damping-like spin torque efficiency per…”
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Enhancement of perpendicular magnetic anisotropy and transmission of spin-Hall-effect-induced spin currents by a Hf spacer layer in W/Hf/CoFeB/MgO layer structures by Pai, Chi-Feng, Nguyen, Minh-Hai, Belvin, Carina, Vilela-Leão, Luis Henrique, Ralph, D. C., Buhrman, R. A.

“…We report that strong perpendicular magnetic anisotropy of the ferromagnetic layer in a W/CoFeB/MgO multilayer structure can be established by inserting a Hf…”
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Manipulation of the van der Waals Magnet Cr2Ge2Te6 by Spin–Orbit Torques by Gupta, Vishakha, Cham, Thow Min, Stiehl, Gregory M, Bose, Arnab, Mittelstaedt, Joseph A, Kang, Kaifei, Jiang, Shengwei, Mak, Kin Fai, Shan, Jie, Buhrman, Robert A, Ralph, Daniel C

“…We report measurements of current-induced thermoelectric and spin–orbit torque effects within devices in which multilayers of the semiconducting…”
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Enhancement of the anti-damping spin torque efficacy of platinum by interface modification by Nguyen, Minh-Hai, Pai, Chi-Feng, Nguyen, Kayla X., Muller, David A., Ralph, D. C., Buhrman, R. A.

“…We report a strong enhancement of the efficacy of the spin Hall effect (SHE) of Pt for exerting anti-damping spin torque on an adjacent ferromagnetic layer by…”
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Exceptionally High, Strongly Temperature Dependent, Spin Hall Conductivity of SrRuO3 by Ou, Yongxi, Wang, Zhe, Chang, Celesta S, Nair, Hari P, Paik, Hanjong, Reynolds, Neal, Ralph, Daniel C, Muller, David A, Schlom, Darrell G, Buhrman, Robert A

“…Spin–orbit torques (SOT) in thin film heterostructures originate from strong spin–orbit interactions (SOI) that, in the bulk, generate a spin current due…”
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Magnetic vortex oscillator driven by d.c. spin-polarized current by Krivorotov, I. N, Buhrman, R. A, Pribiag, V. S, Fuchs, G. D, Braganca, P. M, Ozatay, O, Sankey, J. C, Ralph, D. C

“…Transfer of angular momentum from a spin-polarized current to a ferromagnet provides an efficient means to control the magnetization dynamics of nanomagnets. A…”
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