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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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Schnelle, Walter
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Enhancement of the anomalous Hall effect by distorting the Kagome lattice in an antiferromagnetic materialcitations
- 2023Bismuth-Rich Intermetallic Rods with a Note of Zintl-Phasecitations
- 2023Nano-scale new Heusler compounds NiRh2Sb and CuRh2Sbcitations
- 2022Spiral magnetism, spin flop, and pressure-induced ferromagnetism in the negative charge-transfer-gap insulator Sr$_2$FeO$_4$citations
- 2022Spiral magnetism, spin flop, and pressure-induced ferromagnetism in the negative charge-transfer-gap insulator Sr2FeO4citations
- 2019Complex magnetic phase diagram of metamagnetic MnPtSi
- 2019Complex magnetic phase diagram of metamagnetic MnPtSi.citations
- 2018Local magnetism in MnSiPt rules the chemical bondcitations
- 2018Anomalous Hall effect in Weyl semimetal half-Heusler compounds RPtBi (R = Gd and Nd)citations
- 2016Superconductivity in Weyl semimetal candidate MoTe2citations
- 2014Ca3Pt4+xGe13−y and Yb3Pt4Ge13: new derivatives of the Pr3Rh4Sn13 structure typecitations
- 2012Dy₀.₆₄{Dy₅[Fe₂C₉]} : A complex carbide with a composite structurecitations
- 2012Dy0.64Dy5Fe2C9 : A complex carbide with a composite structurecitations
- 2010Thermal, Magnetic, Electronic and Superconducting Properties of Rare-Earth Metal Pentagermanides REGe5 (RE = La, Nd, Sm, Gd) and Synthesis of TbGe5citations
- 2010Valence of cerium ions in selected ternary compounds from the system Ce-Rh-Sn
- 2009Cationic Clathrate I Si46-xPxTey (6.6(1) < y < 7.5(1), x < 2y) : Crystal Structure, Homogeneity Range, and Physical Propertiescitations
- 2009The polar mixed-valent lanthanum iron(II, III) sulfide La3Fe2-δS7citations
- 2008The first silicon-based cationic clathrate III with high thermal stability: Si172-xPxTey (x=2y, y>20).citations
- 2008The layered metal Ti2PTe2citations
- 2007Sn20.5□3.5As22I8: A Largely Disordered Cationic Clathrate with a New Type of Superstructure and Abnormally Low Thermal Conductivitycitations
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article
Nano-scale new Heusler compounds NiRh2Sb and CuRh2Sb
Abstract
<p>Two Heusler compounds NiRh<sub>2</sub>Sb and CuRh<sub>2</sub>Sb were synthesized for the first time and their crystal structures were determined by combined X-ray diffraction and high-resolution electron microscopy. Two synthesis routes were applied: a one-pot polyol reduction of metal cations at 280-290 °C under microwave radiation yielded nanocrystalline particles of 3-6 nm, whereas intergrown microcrystalline samples were obtained by conventional high-temperature synthesis at 700 °C starting from the elements. NiRh<sub>2</sub>Sb is an orthorhombic Heusler compound that crystallizes in space group Cmcm with lattice parameters a = 6.9188(1) Å, b = 5.7917(1) Å and c = 5.7374(1) Å. CuRh<sub>2</sub>Sb is dimorphic; depending on the synthesis conditions, it either adopts the cubic space group Fm3̄m with a lattice parameter of a = 6.1235(1) Å, or the tetragonal space group I4/mmm with lattice parameters a = 4.1859(1) Å and c = 6.6375(1) Å. The transition between the cubic and tetragonal structures of CuRh<sub>2</sub>Sb is attributed to a reversible band Jahn-Teller distortion as suggested by density functional theory-based calculations. Electrical resistivities evidence metallic behavior for both compounds in accordance with the computed band structures and the density-of-states. Both compounds are Pauli paramagnetic and show no magnetic ordering between room temperature and 2 K. The electrocatalytic performances of the nano-scale intermetallics were tested with the electrolysis of water, and both were found to greatly reduce the overpotential of both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) with a large electrochemically active surface area.</p>