Challenging the Prediction of Anionogenic Ferromagnetism for Rb4O6

Challenging the Prediction of Anionogenic Ferromagnetism for Rb4O6

It has been suggested that Rb4O6 should be a half-metallic ferromagnet with the magnetic moment carried by the hyperoxide anions and a Curie temperature above room temperature. In the present work, magnetic measurements are presented that were performed to investigate this prediction. These measurem...

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Veröffentlicht in:Journal of the American Chemical Society 2007-06, Vol.129 (22), p.6990-6991
Hauptverfasser: Winterlik, Jürgen, Fecher, Gerhard H, Felser, Claudia, Mühle, Claus, Jansen, Martin
Format: Artikel
Sprache:eng
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Zusammenfassung:It has been suggested that Rb4O6 should be a half-metallic ferromagnet with the magnetic moment carried by the hyperoxide anions and a Curie temperature above room temperature. In the present work, magnetic measurements are presented that were performed to investigate this prediction. These measurements provide strong evidence that Rb4O6 is a magnetically frustrated system with a magnetic transition temperature of below 10 K.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja071490z