Challenging the Prediction of Anionogenic Ferromagnetism for Rb4O6

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• 作者：J&uuml ; rgen Winterlik ; Gerhard H. Fecher ; Claudia Felser ; Claus M&uuml ; hle ; Martin Jansen
• 刊名：Journal of the American Chemical Society
• 出版年：2007
• 出版时间：June 6, 2007
• 年：2007
• 卷：129
• 期：22
• 页码：6990 - 6991
• 全文大小：49K
• 年卷期：v.129,no.22(June 6, 2007)
• ISSN：1520-5126

文摘

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.