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Просмотр по автору "De Loubens G."

Просмотр по автору "De Loubens G."

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  • Autonomous and forced dynamics in a spin-transfer nano-oscillator: Quantitative magnetic-resonance force microscopy 
    Hamadeh A.; De Loubens G.; Naletov V.; Grollier J.; Ulysse C.; Cros V.; Klein O. (2012)
    Using a magnetic-resonance force microscope (MRFM), the power emitted by a spin-transfer nano-oscillator consisting of a normally magnetized Py|Cu|Py circular nanopillar is measured both in the autonomous and forced regimes. ...
  • Coherent long-range transfer of angular momentum between magnon Kittel modes by phonons 
    An K.; Litvinenko A.N.; Kohno R.; Fuad A.A.; Naletov V.V.; Vila L.; Ebels U.; De Loubens G.; Hurdequint H.; Beaulieu N.; Ben Youssef J.; Vukadinovic N.; Bauer G.E.W.; Slavin A.N.; Tiberkevich V.S.; Klein O. (2020)
    © 2020 American Physical Society. We report ferromagnetic resonance in the normal configuration of an electrically insulating magnetic bilayer consisting of two yttrium iron garnet (YIG) films epitaxially grown on both ...
  • Comparative measurements of inverse spin Hall effects and magnetoresistance in YIG/Pt and YIG/Ta 
    Hahn C.; De Loubens G.; Klein O.; Viret M.; Naletov V.; Ben Youssef J. (2013)
    We report on a comparative study of spin Hall related effects and magnetoresistance in YIG|Pt and YIG|Ta bilayers. These combined measurements allow to estimate the characteristic transport parameters of both Pt and Ta ...
  • Complete mapping of the spin-wave spectrum in a vortex-state nanodisk 
    Taurel B.; Valet T.; Naletov V.; Vukadinovic N.; De Loubens G.; Klein O. (2016)
    © 2016 American Physical Society.We report a study on the complete spin-wave spectrum inside a vortex-state nanodisk. Transformation of this spectrum is continuously monitored as the nanodisk becomes gradually magnetized ...
  • Complete mapping of the spin-wave spectrum in a vortex-state nanodisk 
    Taurel B.; Valet T.; Naletov V.; Vukadinovic N.; De Loubens G.; Klein O. (2016)
    © 2016 American Physical Society.We report a study on the complete spin-wave spectrum inside a vortex-state nanodisk. Transformation of this spectrum is continuously monitored as the nanodisk becomes gradually magnetized ...
  • Conduction of spin currents through insulating antiferromagnetic oxides 
    Hahn C.; De Loubens G.; Naletov V.; Ben Youssef J.; Klein O.; Viret M. (2014)
    Copyright © EPLA, 2014. Damping processes, associated to magnetization dynamics, allow to generate spin currents from precessing ferromagnets. These can be transmitted into adjacent conducting layers through an interface ...
  • Detection of microwave spin pumping using the inverse spin hall effect 
    Hahn C.; De Loubens G.; Viret M.; Klein O.; Naletov V.; Ben Youssef J. (2013)
    We report on the electrical detection of the dynamical part of the spin-pumping current emitted during ferromagnetic resonance using inverse spin Hall effect methods. The experiment is performed on a YIG|Pt bilayer. The ...
  • Direct observation of dynamic modes excited in a magnetic insulator by pure spin current 
    Demidov V.; Evelt M.; Bessonov V.; Demokritov S.; Prieto J.; Muñoz M.; Ben Youssef J.; Naletov V.; De Loubens G.; Klein O.; Collet M.; Bortolotti P.; Cros V.; Anane A. (2016)
    © Thte Author(s) 2016.Excitation of magnetization dynamics by pure spin currents has been recently recognized as an enabling mechanism for spintronics and magnonics, which allows implementation of spin-torque devices based ...
  • Dynamics of two coupled vortices in a spin valve nanopillar excited by spin transfer torque 
    Locatelli N.; Naletov V.; Grollier J.; De Loubens G.; Cros V.; Deranlot C.; Ulysse C.; Faini G.; Klein O.; Fert A. (2011)
    We investigate the dynamics of two coupled vortices driven by spin transfer. We are able to independently control with current and perpendicular field and to detect the respective chiralities and polarities of the two ...
  • Efficient Synchronization of Dipolarly Coupled Vortex-Based Spin Transfer Nano-Oscillators 
    Locatelli N.; Hamadeh A.; Abreu Araujo F.; Belanovsky A.; Skirdkov P.; Lebrun R.; Naletov V.; Zvezdin K.; Muñoz M.; Grollier J.; Klein O.; Cros V.; De Loubens G. (2015)
    © 2015, Nature Publishing Group. All rights reserved. Due to their nonlinear properties, spin transfer nano-oscillators can easily adapt their frequency to external stimuli. This makes them interesting model systems to ...
  • Enhancement of YIG | Pt spin conductance by local Joule annealing 
    Kohno R.; Thiery N.; An K.; Noel P.; Vila L.; Naletov V.V.; Beaulieu N.; Youssef J.B.; De Loubens G.; Klein O. (2021)
    We report that Joule heating can be used to enhance the interfacial spin conductivity between a metal and an oxide. We observe that local annealing of the interface at about 550 K, when injecting large current densities ...
  • Ferromagnetic resonance force spectroscopy of individual submicron-size samples 
    Klein O.; De Loubens G.; Naletov V.; Boust F.; Guillet T.; Hurdequint H.; Leksikov A.; Slavin A.; Tiberkevich V.; Vukadinovic N. (2008)
    We review how a magnetic-resonance force microscope (MRFM) can be applied to perform ferromagnetic resonance spectroscopy of individual submicron-size samples. We restrict our attention to a thorough study of the spin-wave ...
  • Ferromagnetic resonance spectroscopy of parametric magnons excited by a four-wave process 
    Naletov V.; De Loubens G.; Charbois V.; Klein O.; Tiberkevich V.; Slavin A. (2007)
    Using a magnetic resonance force microscope, we have performed ferromagnetic resonance spectroscopy of the parametric magnons created by a four-wave process. This is achieved by measuring the differential response to a ...
  • Full control of the spin-wave damping in a magnetic insulator using spin-orbit torque 
    Hamadeh A.; D'Allivy Kelly O.; Hahn C.; Meley H.; Bernard R.; Molpeceres A.; Naletov V.; Viret M.; Anane A.; Cros V.; Demokritov S.; Prieto J.; Muñoz M.; De Loubens G.; Klein O. (2014)
    © 2014 American Physical Society. It is demonstrated that the threshold current for damping compensation can be reached in a 5μm diameter YIG(20nm)|Pt(7nm) disk. The demonstration rests upon the measurement of the ferromagnetic ...
  • Generation of coherent spin-wave modes in yttrium iron garnet microdiscs by spin-orbit torque 
    Collet M.; De Milly X.; D'Allivy Kelly O.; Naletov V.; Bernard R.; Bortolotti P.; Ben Youssef J.; Demidov V.; Demokritov S.; Prieto J.; Muñoz M.; Cros V.; Anane A.; De Loubens G.; Klein O. (2016)
    In recent years, spin-orbit effects have been widely used to produce and detect spin currents in spintronic devices. The peculiar symmetry of the spin Hall effect allows creation of a spin accumulation at the interface ...
  • High-efficiency control of spin-wave propagation in ultra-thin yttrium iron garnet by the spin-orbit torque 
    Evelt M.; Demidov V.; Bessonov V.; Demokritov S.; Prieto J.; Muñoz M.; Ben Youssef J.; Naletov V.; De Loubens G.; Klein O.; Collet M.; Garcia-Hernandez K.; Bortolotti P.; Cros V.; Anane A. (2016)
    © 2016 Author(s).We study experimentally with submicrometer spatial resolution the propagation of spin waves in microscopic waveguides based on the nanometer-thick yttrium iron garnet and Pt layers. We demonstrate that by ...
  • Identification and selection rules of the spin-wave eigenmodes in a normally magnetized nanopillar 
    Naletov V.; De Loubens G.; Albuquerque G.; Borlenghi S.; Cros V.; Faini G.; Grollier J.; Hurdequint H.; Locatelli N.; Pigeau B.; Slavin A.; Tiberkevich V.; Ulysse C.; Valet T.; Klein O. (2011)
    We report on a spectroscopic study of the spin-wave eigenmodes inside an individual normally magnetized two-layer circular nanopillar (permalloy|copper|permalloy) by means of a magnetic resonance force microscope. We ...
  • Improved Spectral Stability in Spin-Transfer Nano-Oscillators: Single Vortex Versus Coupled Vortices Dynamics 
    Locatelli N.; Lebrun R.; Naletov V.; Hamadeh A.; De Loubens G.; Klein O.; Grollier J.; Cros V. (2015)
    © 2015 IEEE. We perform a comparative study of spin-transfer-induced excitation of the gyrotropic motion of a vortex core with either uniform or vortex spin polarizers. The microwave output voltage associated with the ...
  • Magnetic resonance spectroscopy of perpendicularly magnetized Permalloy multilayer disks 
    De Loubens G.; Naletov V.; Viret M.; Klein O.; Hurdequint H.; Ben Youssef J.; Boust F.; Vukadinovic N. (2007)
    Using a magnetic resonance force microscope, we compare the ferromagnetic resonance spectra of individual micron size disks with identical diameter, 1 μm, but different layer structures. For a disk composed of a single ...
  • Measurement of the dynamical dipolar coupling in a pair of magnetic nanodisks using a ferromagnetic resonance force microscope 
    Pigeau B.; Hahn C.; De Loubens G.; Naletov V.; Klein O.; Mitsuzuka K.; Lacour D.; Hehn M.; Andrieu S.; Montaigne F. (2012)
    We perform a spectroscopic study of the collective spin-wave dynamics occurring in a pair of magnetic nanodisks coupled by the magnetodipolar interaction. We take advantage of the stray field gradient produced by the ...

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