| 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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Kampfrath, Tobias
Freie Universität Berlin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2023Atomic Scale Control of Spin Current Transmission at Interfaces
- 2023Nonlinear terahertz control of the lead halide perovskite lattice
- 2023Nonlinear THz Control of the Lead Halide Perovskite Lattice
- 2023Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin–phonon interactions
- 2023Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin–phonon interactionscitations
- 2022Spin-voltage-driven efficient terahertz spin currents from the magnetic Weyl semimetals Co2MnGa and Co2MnAl
- 2022Impact of gigahertz and terahertz transport regimes on spin propagation and conversion in the antiferromagnet IrMn
- 2022Impact of gigahertz and terahertz transport regimes on spin propagation and conversion in the antiferromagnet IrMncitations
- 2022Laser-induced terahertz spin transport in magnetic nanostructures arises from the same force as ultrafast demagnetization
- 2022Atomic scale control of spin current transmission at interfaces
- 2022Transition of laser-induced terahertz spin currents from torque- to conduction-electron-mediated transport
- 2022Transition of laser-induced terahertz spin currents from torque- to conduction-electron-mediated transportcitations
- 2022Ultrafast carrier dynamics in terahertz photoconductors and photomixers: beyond short-carrier-lifetime semiconductorscitations
- 2021Frequency-independent terahertz anomalous Hall effect in DyCo5, Co32Fe68 and Gd27Fe73 thin films from DC to 40 THz
- 2021Frequency-Independent Terahertz Anomalous Hall Effect in DyCo5, Co32Fe68, and Gd27Fe73 Thin Films from DC to 40 THzcitations
- 2021Broadband Terahertz Probes of Anisotropic Magnetoresistance Disentangle Extrinsic and Intrinsic Contributions
- 2021Frequency‐Independent Terahertz Anomalous Hall Effect in DyCo 5, Co 32Fe68, and Gd 27Fe73 Thin Films from DC to 40 THzcitations
- 2021Ultrafast photocurrents in MoSe2 probed by terahertz spectroscopy
- 2021Broadband terahertz probes of anisotropic magnetoresistance disentangle extrinsic and intrinsic contributionscitations
- 2020High-Throughput Techniques for Measuring the Spin Hall Effect
- 2020Phase-Resolved Detection of Ultrabroadband THz Pulses inside a Scanning Tunneling Microscope Junction
- 2018Terahertz spectroscopy for all-optical spintronic characterization of the spin-Hall-effect metals Pt, W and Cu80Ir20
- 2018Complex terahertz and direct current inverse spin Hall effect in YIG/Cu1-xIrx bilayers across a wide concentration range
- 2017Terahertz spin currents and inverse spin Hall effect in thin-film heterostructures containing complex magnetic compoundscitations
- 2017Ultrabroadband single-cycle terahertz pulses with peak fields of 300 kV cm−1 from a metallic spintronic emitter
Places of action
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document
Nonlinear THz Control of the Lead Halide Perovskite Lattice
Abstract
Lead halide perovskites (LHPs) have emerged as an excellent class of semiconductors for next-generation solar cells and optoelectronic devices. Tailoring physical properties by fine-tuning the lattice structures has been explored in these materials by chemical composition or morphology. Nevertheless, its dynamic counterpart, phonon-driven ultrafast material control, as contemporarily harnessed for oxide perovskites, has not been established yet. Here we employ intense THz electric fields to obtain direct lattice control via nonlinear excitation of coherent octahedral twist modes in hybrid CH3NH3PbBr3 and all-inorganic CsPbBr3 perovskites. These Raman-active phonons at 0.9 - 1.3 THz are found to govern the ultrafast THz-induced Kerr effect in the low-temperature orthorhombic phase and thus dominate the phonon-modulated polarizability with potential implications for dynamic charge carrier screening beyond the Froehlich polaron. Our work opens the door to selective control of LHP's vibrational degrees of freedom governing phase transitions and dynamic disorder.