| 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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Klotz, Stefan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Strong resistance to hydrogen embrittlement of high-performance superalloy MP35N under 200 MPa (≈30,000 psi) H 2 gas pressure
- 2022Influence of clamping systems during milling of carbon fiber reinforced composites
- 2021Emergent magnetic phases in pressure-tuned van der Waals antiferromagnet FePS3citations
- 2020A nano-polycrystalline diamond anvil cell with bulk metallic glass cylinder for single-crystal neutron diffractioncitations
- 2019Epsilon iron as a spin-smectic statecitations
- 2019On intensities in high pressure neutron powder diffraction using single and polycrystalline diamond anvils: small versus large sample volumescitations
- 2017Quenching device for electrolytic aqueous solutionscitations
- 2014Neutron diffraction studies on “simple” iron oxides under pressure: Fe3O4, α-Fe2O3, and FeOcitations
- 2014Performance of ceramic anvils for high pressure neutron scatteringcitations
- 2010Temperature dependence of the pressure-induced amorphization of ice Ih studied by high-pressure neutron diffraction to 30 Kcitations
- 2009Establishing the structure of GeS2 at high pressures and temperatures: a combined approach using x-ray and neutron diffractioncitations
- 2007Experimental Evidence for a Crossover between Two Distinct Mechanisms of Amorphization in Ice Ih under Pressurecitations
Places of action
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article
Emergent magnetic phases in pressure-tuned van der Waals antiferromagnet FePS3
Abstract
Layered van-der-Waals 2D magnetic materials are of great interest in fundamental condensed-matter physics research, as well as for potential applications in spintronics and device physics. We present neutron powder diffraction data using new ultra-high-pressure techniques to measure the magnetic structure of Mott-insulating 2D honeycomb antiferromagnet FePS3 at pressures up to 183 kbar and temperatures down to 80 K. These data are complemented by high-pressure magnetometry and reverse Monte Carlo modeling of the spin configurations. As pressure is applied, the previously-measured ambient-pressure magnetic order switches from an antiferromagnetic to a ferromagnetic interplanar interaction, and from 2D-like to 3D-like character. The overall antiferromagnetic structure within the ab planes, ferromagnetic chains antiferromagnetically coupled, is preserved, but the magnetic propagation vector is altered from k=0,1,12) to k=(0,1,0), a halving of the magnetic unit cell size. At higher pressures, coincident with the second structural transition and the insulator-metal transition in this compound, we observe a suppression of this long-range-order and emergence of a form of magnetic short-range order which survives above room temperature. Reverse Monte Carlo fitting suggests this phase to be a short-ranged version of the original ambient pressure structure - with the Fe moment size remaining of similar magnitude and with a return to antiferromagnetic interplanar correlations. The persistence of magnetism well into the HP-II metallic state is an observation in contradiction with previous x-ray spectroscopy results which suggest a spin-crossover transition.