de Haas–van Alphen effect in anti-ferromagnetic SmCu₂

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• 作者：Kunihiko Maezawa ; Hideki Horita ; Tadashi Fukuhara ; Yosikazu Isikawa and Kiyoo Sato
• 关键词：SmCu₂ ; de Haas– ; van Alphen effect ; Anti-ferromagnetic state ; Fermi surface
• 刊名：Physica B
• 出版年：2006
• 出版时间：1 May 2006
• 年：2006
• 卷：378-380
• 期：Complete
• 页码：1083-1084
• 全文大小：157 K

文摘

de Haas–van Alphen (dHvA) effect in anti-ferromagnetic state of SmCu₂ has been performed in the field up to 12 T and at temperature down to 0.4 K. At least 24 branches with the frequencies from 1.2 to 46 MG have been found. The cyclotron effective mass ratios are determined to be 0.7–1.8. The complicated figure of the angular dependences is discussed based on the Fermi surfaces folded by the anti-ferromagnetic sub-zone.