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  AgRuO3, a Strongly Exchange-Coupled Honeycomb Compound Lacking Long-Range Magnetic Order

Prasad, B. E., Kanungo, S., Jansen, M., Komarek, A. C., Yan, B., Manuel, P., et al. (2017). AgRuO3, a Strongly Exchange-Coupled Honeycomb Compound Lacking Long-Range Magnetic Order. Chemistry – A European Journal, 23(19), 4680-4686. doi:10.1002/chem.201606057.

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Prasad, Beluvalli E.1, Autor           
Kanungo, Sudipta2, Autor           
Jansen, Martin1, Autor           
Komarek, Alexander C.3, Autor           
Yan, Binghai4, Autor           
Manuel, Pascal5, Autor
Felser, Claudia6, Autor           
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
3Alexander Komarek, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863446              
4Binghai Yan, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863427              
5External Organizations, ou_persistent22              
6Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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Schlagwörter: AgRuO3, electronic structure, honeycomb lattice, hydrothermal synthesis, magnetic properties
 Zusammenfassung: Quasi two-dimensional (2D) oxide-based honeycomb lattices have attracted great attention for displaying specific electronic instabilities, which give rise to unconventional bonding patterns and unexpected magnetic exchange couplings. The synthesis of AgRuO3, another representative exhibiting unique structural properties, is reported here. The stacking sequence of the honeycomb layers (Ru2O6) differs from analogous precedents; in particular, the intercalating silver atoms are shifted from the middle of the interspaces and cap the void octahedral sites of the (□Ru2O6) slabs from both sides. This way, charge neutral, giant 2D “molecules” of Ag/Ru2O6/Ag result; a feature that significantly enhances the overall 2D character of AgRuO3. Measurements of magnetization have revealed extremely strong magnetic exchange coupling to be present, surviving to a temperature as high as 673 K, which is the temperature of thermal decomposition. No indication for long-range magnetic order has, however, been observed. Theoretical analyses confirm the pronounced 2D character of the electronic system, and in particular reveal the inter-honeycomb layer coupling Jc to be distinctly weak.

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Sprache(n): eng - English
 Datum: 2017-03-202017-03-20
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1002/chem.201606057
 Art des Abschluß: -

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Titel: Chemistry – A European Journal
  Andere : Chem. – Eur. J.
  Andere : Chem. Eur. J.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Weinheim, Germany : VCH Verlagsgesellschaft
Seiten: - Band / Heft: 23 (19) Artikelnummer: - Start- / Endseite: 4680 - 4686 Identifikator: ISSN: 0947-6539
CoNE: https://pure.mpg.de/cone/journals/resource/954926979058