Observation of Glassy Ferromagnetism in Al-Doped 4H-SiC

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• 作者：Bo Song ; Huiqiang Bao ; Hui Li ; Ming Lei ; Tonghua Peng ; Jikang Jian ; Jun Liu ; Wanyan Wang ; Wenjun Wang ; Xiaolong Chen
• 刊名：Journal of the American Chemical Society
• 出版年：2009
• 出版时间：February 4, 2009
• 年：2009
• 卷：131
• 期：4
• 页码：1376-1377
• 全文大小：125K
• 年卷期：v.131,no.4(February 4, 2009)
• ISSN：1520-5126

文摘

Glassy ferromagnetism is observed in diluted magnetic semiconductor Al-doped 4H-SiC. We propose a possible explanation for the origin of ferromagnetism order that is the coeffect of sp²/sp³ configuration along with the structural defects. This result unambiguously demonstrates the existence of intrinsic ferromagnetism order in nonmagnetic sp systems.