| 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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Celania, Chris
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023The Prolific Ternary System Pt/Sn/Ndcitations
- 2023The Prolific Ternary System Pt/Sn/Nd:Insertion of Pt into the Structures of Sn/Nd Intermetallics Yields Structural Complexity and Wealthcitations
- 2020Ternary Polar Intermetallics within the Pt/Sn/R Systems (R = La-Sm)citations
- 2018R14(Au, M)51 (R = Y, La-Nd, Sm-Tb, Ho, Er, Yb, Lu; M = Al, Ga, Ge, In, Sn, Sb, Bi)citations
- 2018R14(Au, M)51(R = Y, La-Nd, Sm-Tb, Ho, Er, Yb, Lu; M = Al, Ga, Ge, In, Sn, Sb, Bi): Stability Ranges and Site Preference in the Gd14Ag51Structure Typecitations
- 2018Bringing order to large-scale disordered complex metal alloyscitations
- 2017R3Au9Pn (R = Y, Gd-Tm; Pn = Sb, Bi): A Link between Cu10Sn3 and Gd14Ag51citations
- 2017R3Au9Pn (R = Y, Gd-Tm; Pn = Sb, Bi)citations
Places of action
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article
R3Au9Pn (R = Y, Gd-Tm; Pn = Sb, Bi)
Abstract
<p>A new series of intermetallic compounds R<sub>3</sub>Au<sub>9</sub>Pn (R = Y, Gd-Tm; Pn = Sb, Bi) has been discovered during the explorations of the Au-rich parts of rare-earth-containing ternary systems with p-block elements. The existence of the series is strongly restricted by both geometric and electronic factors. R<sub>3</sub>Au<sub>9</sub>Pn compounds crystallize in the hexagonal crystal system with space group P6<sub>3</sub>/m (a = 8.08-8.24 Å, c = 8.98-9.08 Å). All compounds feature Au-Pn, formally anionic, networks built up by layers of alternating edge-sharing Au@Au<sub>6</sub> and Sb@Au<sub>6</sub> trigonal antiprisms of overall composition Au<sub>6/2</sub>Pn connected through additional Au atoms and separated by a triangular cationic substructure formed by R atoms. From a first look, the series appears to be isostructural with recently reported R<sub>3</sub>Au<sub>7</sub>Sn<sub>3</sub> (a ternary ordered derivative of the Cu<sub>10</sub>Sn<sub>3</sub>-structure type), but no example of R<sub>3</sub>Au<sub>9</sub>M is known when M is a triel or tetrel element. R<sub>3</sub>Au<sub>9</sub>Pn also contains Au@Au<sub>6</sub>Au<sub>2</sub>R<sub>3</sub> fully capped trigonal prisms, which are found to be isostructural with those found in the well-researched R<sub>14</sub>Au<sub>51</sub> series. This structural motif, not present in R<sub>3</sub>Au<sub>7</sub>Sn<sub>3</sub>, represents a previously unrecognized link between Cu<sub>10</sub>Sn<sub>3</sub> and Gd<sub>14</sub>Ag<sub>51</sub> parent structure types. Magnetic property measurements carried out for Ho<sub>3</sub>Au<sub>9</sub>Sb reveal a complex magnetic structure characterized by antiferromagnetic interactions at low temperature (T<sub>N</sub> = 10 K). Two metamagnetic transitions occur at high field with a change from antiferromagnetic toward ferromagnetic ordering. Density functional theory based computations were performed to understand the materials' properties and to shed some light on the stability ranges. This allowed a better understanding of the bonding pattern, especially of the Au-containing substructure, and elucidation of the role of the third element in the stability of the structure type.</p>