| 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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Ceresoli, Davide
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Topics
Publications (13/13 displayed)
- 2024Weyl semimetallic phase in high pressure CrSb 2 and structural compression studies of its high pressure polymorphs
- 2024Weyl semimetallic phase in high pressure CrSb$_2$ and structural compression studies of its high pressure polymorphs
- 2024Weyl semimetallic phase in high pressure CrSb2 and structural compression studies of its high pressure polymorphs
- 2023Elucidating the superexchange mechanisms in magnetic coordination polymer [Co(HCOO) 2 (H2O) 2 ] ∞ through chemical bonding analysiscitations
- 2022Anharmonic motion and aspherical nuclear probability density functions in cesium halidescitations
- 2021Electronic Polarizability Induced Cooper-like Pairing and Energy Gap in High-Tc superconductors
- 2021High pressure structure studies of three SrGeO3 polymorphs – Amorphization under pressurecitations
- 2020First-principles evaluation of the secondary electron yield γN from polyethylene surfacecitations
- 2018Magnetic Moments and Electron Transport through Chromium-Based Antiferromagnetic Nanojunctionscitations
- 2017High-pressure phase diagram, structural transitions, and persistent non-metallicity of BaBiO$_3$: theory and experiment
- 2017Ab initio study of properties of BaBiO<SUB>3</SUB> at high pressure
- 2008Pressure-induced insulator-metal and structural transitions of BaBiO<SUB>3</SUB> from first principles LDA+U
- 2004Non-melting and self-wetting of alkali halide surfaces at high temperatures
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article
Weyl semimetallic phase in high pressure CrSb2 and structural compression studies of its high pressure polymorphs
Abstract
In this study, high pressure synchrotron powder X-ray diffraction is used to investigate the compression of two high pressure polymorphs of CrSb2. The first is the CuAl2-type polymorph with an eight-fold coordinated Cr, which can be quenched to ambient conditions from high-pressure high-temperature conditions. The second is the recently discovered MoP2-type polymorph, which is induced by compression at room temperature, with a seven-fold coordinated Cr. Here, the assigned structure is unambiguously confirmed by solving it from single-crystal X-ray diffraction. Furthermore, the electrical properties of the MoP2-type polymorph were investigated theoretically and the resistance calculations under pressure were accompanied by resistance measurements under high pressure on a single crystal of CrSb2. The calculated electronic band structure for the MoP2-type phase is discussed and we show that the polymorph is semimetallic and possesses type-I Weyl points. No further phase transitions were observed for the CuAl2-type structure up to 50 GPa and 40 GPa for the MoP2-type structure. Even though the CuAl2-phase has the highest coordination number of Cr, it was found to be less compressible than the MoP2-phase having a seven-fold coordinated Cr, which was attributed to the longer Cr-Sb distance in the CuAl2-type phase. The discovery of a type-I Weyl semimetallic phase in CrSb2 opens up for discovering other Weyl semimetals in the transition metal di-pnictides under high pressure.