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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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Felser, C.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Enhancement of the anomalous Hall effect by distorting the Kagome lattice in an antiferromagnetic materialcitations
- 2023Ultrafast helicity-dependent photocurrents in Weyl Magnet Mn 3 Sn
- 2023Significant enhancement of ferromagnetism above room temperature in epitaxial 2D van der Waals ferromagnet Fe5−δGeTe2/Bi2Te3 heterostructurescitations
- 2022Spintronic THz emitters based on transition metals and semi-metals/Pt multilayerscitations
- 2021Dopant-segregation to grain boundaries controls electrical conductivity of n-type NbCo(Pt)Sn half-Heusler alloy mediating thermoelectric performancecitations
- 2021Extremely large magnetoresistance from electron-hole compensation in the nodal-loop semimetal ZrP2
- 2020Robust Bain distortion in the premartensite phase of a platinum-substituted Ni2MnGa magnetic shape memory alloycitations
- 2019Superconductivity in Weyl semimetal NbP: Bulk vs. surface
- 2019Improved magnetostructural and magnetocaloric reversibility in magnetic Ni-Mn-In shape-memory Heusler alloy by optimizing the geometric compatibility conditioncitations
- 2019Effect of chemical and hydrostatic pressure on the coupled magnetostructural transition of Ni-Mn-In Heusler alloyscitations
- 2018Strain and order-parameter coupling in Ni-Mn-Ga Heusler alloys from resonant ultrasound spectroscopycitations
- 2018Adaptive modulation in the $mathrm{Ni_{2}Mn_{1.4}In_{0.6}}$ magnetic shape-memory Heusler alloycitations
- 2018Anomalous Hall effect in Weyl semimetal half-Heusler compounds RPtBi (R = Gd and Nd)citations
- 2017Heteroepitaxial growth of tetragonal Mn2.7-xFexGa1.3 (0 < x < 1.2) Heusler films with perpendicular magnetic anisotropycitations
- 2017Enhanced magnetization and anisotropy in Mn-Ga thin films grown on LSATcitations
- 2017Robust Bain distortion in the premartensite phase of a platinum-substituted Ni2MnGa magnetic shape memory alloycitations
- 2017Robust Bain distortion in the premartensite phase of a platinum-substituted $mathrm{Ni_{2}}MnGa$ magnetic shape memory alloycitations
- 2015Strain behavior and lattice dynamics in Ni50Mn35In15.
- 2015Monitoring surface resonances on Co2MnSi (100) by spin-resolved photoelectron spectroscopycitations
- 2015Premartensite to martensite transition and its implications for the origin of modulation in $mathrm{Ni_{2}MnGa}$ ferromagnetic shape-memory alloycitations
- 2015Residual stress induced stabilization of martensite phase and its effect on the magnetostructural transition in Mn-rich Ni-Mn-In/Ga magnetic shape-memory alloyscitations
- 2015Strain behavior and lattice dynamics in Ni50Mn35In15citations
- 2014Direct observation of half-metallicity in the Heusler compound Co2MnSicitations
- 2014The Quest for and Demonstration of direct Experimental Evidence for half Metallicity in Heusler Compounds
- 2009Heusler compounds as ternary intermetallic nanoparticles: Co₂FeGacitations
- 2009Heusler compounds as ternary intermetallic nanoparticles: Co2FeGacitations
- 2008On the influence of bandstructure on transport properties of magnetic tunnel junctions with Co2Mn1-xFexSi single and multilayer electrodecitations
Places of action
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article
Spintronic THz emitters based on transition metals and semi-metals/Pt multilayers
Abstract
Spintronic terahertz (THz) emitters based on the inverse spin Hall effect in ferromagnetic/heavy metal (FM/HM) heterostructures have become important sources for THz pulse generation. The design, materials, and control of these interfaces at the nanometer level have become vital to engineer their THz emission properties. In this work, we present studies of the optimization of such structures through a multi-pronged approach, taking advantage of material and interface engineering to enhance THz spintronic emission. This includes the application of multi-stacks of HM/FM junctions and their application to trilayer structures, the use of spin-sinks to simultaneously enhance the THz emitted fields and reduce the use of thick Pt layers to reduce optical absorption, and the use of semi-metals to increase the spin polarization and, thus, THz emission. Through these approaches, significant enhancements of the THz field can be achieved. Importantly, taking into account the optical absorption permits to elucidate novel phenomena such as the relation between the spin diffusion length and the spin-sink using THz spectroscopy, as well as possibly distinguishing between self- and interface-spin-to-charge conversion in semi-metals.