| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hoffmann, Axel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Challenges in electrical detection of spin-orbit torque in Ir20Mn80/Pt hetero-structurescitations
- 2021Influence of the Growth Substrate on the Internal Quantum Efficiency of Algan/Aln Multiple Quantum Wells Governed by Carrier Localizationcitations
- 2021Point defect-induced UV-C absorption in aluminum nitride epitaxial layers grown on sapphire substrates by metal-organic chemical vapor deposition
- 2021Coherent control of asymmetric spintronic terahertz emission from two-dimensional hybrid metal halidescitations
- 2020Temperature dependent photoluminescence of lateral polarity junctions of metal organic chemical vapor deposition grown GaN
- 2020Vibrational dynamics in lead halide hybrid perovskites investigated by Raman spectroscopycitations
- 2019Simultaneous Optical and Electrical Spin-Torque Magnetometry with Phase-sensitive Detection of Spin Precessioncitations
- 2019Tuning Edge Localized Spin Waves in Magnetic Microstripes by Proximate Magnetic Structures.citations
- 2019Quasi-phase-matched second harmonic generation of UV light using AlN waveguidescitations
- 2016Insulating nanomagnets driven by spin torquecitations
- 2014Spin Hall Effects in Metallic Antiferromagnetscitations
Places of action
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article
Insulating nanomagnets driven by spin torque
Abstract
Magnetic insulators, such as yttrium iron garnet (Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub>), are ideal materials for ultra-low power spintronics applications due to their low energy dissipation and efficient spin current generation and transmission. Recently, it has been realized that spin dynamics can be driven very effectively in micrometer-sized Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub>/Pt heterostructures by spin-Hall effects. We demonstrate here the excitation and detection of spin dynamics in Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub>/Pt nanowires by spin-torque ferromagnetic resonance. The nanowires defined via electron-beam lithography are fabricated by conventional room temperature sputtering deposition on Gd<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub> substrates and lift-off. We observe field-like and anti-damping-like torques acting on the magnetization precession, which are due to simultaneous excitation by Oersted fields and spin-Hall torques. The Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub>/Pt nanowires are thoroughly examined over a wide frequency and power range. We observe a large change in the resonance field at high microwave powers, which is attributed to a decreasing effective magnetization due to microwave absorption. By comparing different nanowire widths, the importance of geometrical confinements for magnetization dynamics becomes evident. In conclusion, our results are the first stepping stones toward the realization of integrated magnonic logic devices based on insulators, where nanomagnets play an essential role.