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LEBRUN Romain

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  • S. Wittrock, P. Talatchian, M. Romera, S. Menshawy, M. Jotta Garcia, M. - C. Cyrille, R. Ferreira, R. Lebrun, P. Bortolotti, U. Ebels, J. Grollier, V. Cros, Beyond the gyrotropic motion: Dynamic C-state in vortex spin torque oscillators. Applied Physics Letters. 118, 012404 (2021).

  • S. Wittrock, P. Talatchian, M. Romera, M. Garcia Jotta, M. - C. Cyrille, R. Ferreira, R. Lebrun, P. Bortolotti, U. Ebels, J. Grollier, V. Cros, Flicker and random telegraph noise between gyrotropic and dynamic C-state of a vortex based spin torque nano oscillator. AIP Advances. 11, 035042 (2021).

  • M. Jotta Garcia, J. Moulin, S. Wittrock, S. Tsunegi, K. Yakushiji, A. Fukushima, H. Kubota, S. Yuasa, U. Ebels, M. Pannetier-Lecoeur, C. Fermon, R. Lebrun, P. Bortolotti, A. Solignac, V. Cros, Spin–torque dynamics for noise reduction in vortex-based sensors. Applied Physics Letters. 118, 122401 (2021).

  • L. Baldrati, C. Schmitt, O. Gomonay, R. Lebrun, R. Ramos, E. Saitoh, J. Sinova, M. Kläui, Efficient Spin Torques in Antiferromagnetic CoO/Pt Quantified by Comparing Field- and Current-Induced Switching. Physical Review Letters. 125, 077201 (2020).

  • T. H. Dang, J. Hawecker, E. Rongione, G. B. Flores, D. Q. To, J. C. Rojas-Sanchez, H. Nong, J. Mangeney, J. Tignon, F. Godel, S. Collin, P. Seneor, M. Bibes, A. Fert, M. Anane, J. - M. George, L. Vila, M. Cosset-Cheneau, D. Dolfi, R. Lebrun, P. Bortolotti, K. Belashchenko, S. Dhillon, H. Jaffrès, Ultrafast spin-currents and charge conversion at 3d-5d interfaces probed by time-domain terahertz spectroscopy. Applied Physics Reviews. 7, 041409 (2020).

  • A. Ross, R. Lebrun, L. Baldrati, A. Kamra, O. Gomonay, S. Ding, F. Schreiber, D. Backes, F. Maccherozzi, D. A. Grave, A. Rothschild, J. Sinova, M. Kläui, An insulating doped antiferromagnet with low magnetic symmetry as a room temperature spin conduit. Applied Physics Letters. 117, 242405 (2020).

  • F. Schreiber, L. Baldrati, C. Schmitt, R. Ramos, E. Saitoh, R. Lebrun, M. Kläui, Concurrent magneto-optical imaging and magneto-transport readout of electrical switching of insulating antiferromagnetic thin films. Applied Physics Letters. 117, 082401 (2020).

  • R. Lebrun, A. Ross, O. Gomonay, V. Baltz, U. Ebels, A. - L. Barra, A. Qaiumzadeh, A. Brataas, J. Sinova, M. Kläui, Long-distance spin-transport across the Morin phase transition up to room temperature in ultra-low damping single crystals of the antiferromagnet α-Fe 2 O 3. Nature Communications. 11, 6332 (2020).

  • S. Tsunegi, T. Taniguchi, R. Lebrun, K. Yakushiji, V. Cros, J. Grollier, A. Fukushima, S. Yuasa, H. Kubota, Scaling up electrically synchronized spin torque oscillator networks. Scientific Reports. 8, 13475 (2018).

  • R. Lebrun, J. Grollier, F. Abreu Araujo, P. Bortolotti, V. Cros, A. Hamadeh, X. de Milly, Y. Li, G. De Loubens, O. Klein, S. Tsunegi, H. Kubota, K. Yakushiji, A. Fukushima, S. Yuasa, Driven energy transfer between coupled modes in spin-torque oscillators. Phys. Rev. B. 95, 134444 (2017).

  • R. Lebrun, S. Tsunegi, P. Bortolotti, H. Kubota, A. S. Jenkins, M. Romera, K. Yakushiji, A. Fukushima, J. Grollier, S. Yuasa, V. Cros, Mutual synchronization of spin torque nano-oscillators through a long-range and tunable electrical coupling scheme. Nature Communications. 8, 15825 (2017).

  • M. Kreissig, R. Lebrun, F. Protze, K. - J. Merazzo, J. Hem, L. Vila, R. Ferreira, M. - C. Cyrille, F. Ellinger, V. Cros, U. Ebels, P. Bortolotti, dans AIP Advances (2017)vol. 7p. 056653.

  • A. S. Jenkins, R. Lebrun, E. Grimaldi, S. Tsunegi, P. Bortolotti, H. Kubota, K. Yakushiji, A. Fukushima, G. De Loubens, O. Klein, S. Yuasa, V. Cros, Spin-torque resonant expulsion of the vortex core for an efficient radiofrequency detection scheme. Nature Nanotechnology. 11, 360–364 (2016).

  • S. Tsunegi, E. Grimaldi, R. Lebrun, H. Kubota, A. S. Jenkins, K. Yakushiji, A. Fukushima, P. Bortolotti, J. Grollier, S. Yuasa, V. Cros, Self-Injection Locking of a Vortex Spin Torque Oscillator by Delayed Feedback. Scientific Reports. 6, 26849 (2016).

  • M. Romera, P. Talatchian, R. Lebrun, K. - J. Merazzo, P. Bortolotti, L. Vila, J. - D. Costa, R. Ferreira, P. - P. Freitas, M. - C. Cyrille, U. Ebels, V. Cros, J. Grollier, Enhancing the injection locking range of spin torque oscillators through mutual coupling. Applied Physics Letters. 109, 252404 (2016).

  • A. Mizrahi, N. Locatelli, R. Lebrun, V. Cros, A. Fukushima, H. Kubota, S. Yuasa, D. Querlioz, J. Grollier, Controlling the phase locking of stochastic magnetic bits for ultra-low power computation. Scientific Reports. 6, 30535 (2016).

  • N. Locatelli, A. Hamadeh, F. Abreu Araujo, A. - D. Belanovsky, P. N. Skirdkov, R. Lebrun, V. V. Naletov, K. A. Zvezdin, M. Munoz, J. Grollier, O. Klein, V. Cros, G. de Loubens, Efficient Synchronization of Dipolarly Coupled Vortex-Based Spin Transfer Nano-Oscillators. Scientific Reports. 5, 17039 (2015).

  • F. Abreu Araujo, A. - D. Belanovsky, P. N. Skirdkov, K. A. Zvezdin, A. K. Zvezdin, N. Locatelli, R. Lebrun, J. Grollier, V. Cros, G. de Loubens, O. Klein, Optimizing magnetodipolar interactions for synchronizing vortex based spin-torque nano-oscillators. Physical Review B. 92, 045419 (2015).

  • N. Locatelli, R. Lebrun, V. V. Naletov, A. Hamadeh, G. De Loubens, O. Klein, J. Grollier, V. Cros, Improved Spectral Stability in Spin-Transfer Nano-Oscillators: Single Vortex Versus Coupled Vortices Dynamics. IEEE Transactions on Magnetics. 51, 4300206 (2015).

  • R. Lebrun, A. S. Jenkins, A. Dussaux, N. Locatelli, S. Tsunegi, E. Grimaldi, H. Kubota, P. Bortolotti, K. Yakushiji, J. Grollier, A. Fukushima, S. Yuasa, V. Cros, Understanding of Phase Noise Squeezing Under Fractional Synchronization of a Nonlinear Spin Transfer Vortex Oscillator. Physical Review Letters. 115, 017201 (2015).

  • A. S. Jenkins, E. Grimaldi, P. Bortolotti, R. Lebrun, H. Kubota, K. Yakushiji, A. Fukushima, G. de Loubens, O. Klein, S. Yuasa, V. Cros, Controlling the chirality and polarity of vortices in magnetic tunnel junctions. Applied Physics Letters. 105, 172403 (2014).

  • A. Hamadeh, N. Locatelli, V. V. Naletov, R. Lebrun, G. de Loubens, J. Grollier, O. Klein, V. Cros, Origin of Spectral Purity and Tuning Sensitivity in a Spin Transfer Vortex Nano-Oscillator. Physical Review Letters. 112, 257201 (2014).

  • A. Hamadeh, N. Locatelli, V. V. Naletov, R. Lebrun, G. de Loubens, J. Grollier, O. Klein, V. Cros, Perfect and robust phase-locking of a spin transfer vortex nano-oscillator to an external microwave source. Applied Physics Letters. 104, 022408 (2014).

  • E. Grimaldi, R. Lebrun, A. S. Jenkins, A. Dussaux, J. Grollier, V. Cros, A. Fert, H. Kubota, K. Yakushiji, A. Fukushima, R. Matsumoto, S. Yuasa, G. Cibiel, P. Bortolotti, G. Pillet, dans 2014 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (FCS) (IEEE; UFFC; Asia Pacific Metrol Programme; Minist Sci & Technol; NAR Labs; Instrument Technol Res Ctr; Sensors & Actuators Tech; Tsing Hua Univ, 2014)IEEE International Frequency Control Symposiump. 44–49.

  • R. Lebrun, N. Locatelli, S. Tsunegi, J. Grollier, V. Cros, F. Abreu Araujo, H. Kubota, K. Yakushiji, A. Fukushima, S. Yuasa, Nonlinear Behavior and Mode Coupling in Spin-Transfer Nano-Oscillators. Physical Review Applied. 2, UNSP 061001 (2014).

  • S. Tsunegi, H. Kubota, K. Yakushiji, M. Konoto, S. Tamaru, A. Fukushima, H. Arai, H. Imamura, E. Grimaldi, R. Lebrun, J. Grollier, V. Cros, S. Yuasa, High emission power and Q factor in spin torque vortex oscillator consisting of FeB free layer. Applied Physics Express. 7, 063009 (2014).