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Title: Simultaneous Optical and Electrical Spin-Torque Magnetometry with Phase-sensitive Detection of Spin Precession

Journal Article · · Physical Review Applied
 [1];  [2];  [3];  [4];  [5];  [6];  [6];  [5];  [4];  [6];  [1]
  1. Oakland Univ., Rochester, MI (United States). Dept. of Physics; Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Illinois Inst. of Technology, Chicago IL (United States). Dept. of Physics
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Huazhong Univ. of Science and Technology, Wuhan (China). School of Optical and Electronic Information
  4. Oakland Univ., Rochester, MI (United States). Dept. of Physics
  5. Oakland Univ., Rochester, MI (United States). Dept. of Electrical and Computer Engineering
  6. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division

Spin-based coherent information processing and encoding utilize the precession phase of spins in magnetic materials. However, the detection and manipulation of spin precession phases remain a major challenge for advanced spintronic functionalities. By using simultaneous electrical and optical detection, we demonstrate the direct measurement of the spin precession phase of a permalloy device driven by the spin-orbit torques from adjacent heavy metals. The spin Hall angle of the heavy metals can be independently determined from concurrent electrical and optical signals. The phase-sensitive optical detection also allows spatially-resolved measurements of local spin-torque parameters and ferromagnetic resonance with comprehensive amplitude and phase information. Here, our study offers a route toward future advanced characterizations of spin-torque oscillators, magnonic circuits, and tunneling junctions, where measuring the current-induced spin dynamics of individual nanomagnets is required.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Science Foundation (NSF)
Grant/Contract Number:
AC02-06CH11357; DMR-1808892
OSTI ID:
1505167
Journal Information:
Physical Review Applied, Vol. 11, Issue 3; ISSN 2331-7043
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Suppression of spin-pumping by a MgO tunnel-barrier text January 2009
High cooperativity in coupled microwave resonator ferrimagnetic insulator hybrids text January 2012
Comparative Measurements of Inverse Spin Hall and Magnetoresistance in YIG|Pt and YIG|Ta text January 2013
A Universal Method for Separating Spin Pumping from Spin Rectification Voltage of Ferromagnetic Resonance text January 2013
Enhancement of Pure Spin Currents in Spin Pumping Y3Fe5O12/Cu/metal Trilayers through Spin Conductance Matching text January 2014
Strongly coupled magnons and cavity microwave photons text January 2014
Dependence of the Efficiency of Spin Hall Torque on the Transparency of Pt-Ferromagnetic Layer Interfaces text January 2014
Comparison of spin-orbit torques and spin pumping across NiFe/Pt and NiFe/Cu/Pt interfaces text January 2015
Spin Pumping in Electrodynamically Coupled Magnon-Photon Systems text January 2015
Direct detection of pure spin-current by x-ray pump-probe measurements text January 2015
Long distance transport of magnon spin information in a magnetic insulator at room temperature text January 2015
Driving and detecting ferromagnetic resonance in insulators with the spin Hall effect text January 2015
All-Optical Vector Measurement of Spin-Orbit-Induced Torques Using Both Polar and Quadratic Magneto-Optic Kerr Effects text January 2015
Spin Swapping Transport and Torques in Ultrathin Magnetic Bilayers text January 2015
Cavity magnomechanics preprint January 2015
Epitaxial patterning of nanometer-thick Y3Fe5O12 films with low magnetic damping text January 2015
Magnon Polarons in the Spin Seebeck Effect text January 2016
Insulating nanomagnets driven by spin torque text January 2016
Inductive detection of field-like and damping-like AC inverse spin-orbit torques in ferromagnet/normal metal bilayers text January 2016
Reorientable Spin Direction for Spin Current Produced by the Anomalous Hall Effect text January 2017
Spin-orbit torque magnetometry by wide-field magneto-optical Kerr effect text January 2017
Interface-generated spin currents text January 2018
Spatial Mapping of Torques within a Spin Hall Nano-oscillator text January 2018
Spin-transfer-driven ferromagnetic resonance of individual nanomagnets text January 2006
Weakly Coupled Motion of Individual Layers in Ferromagnetic Resonance text January 2006

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