Two-Dimensional fermi surfaces in LaRuPO and LaFePO versus three-dimensional fermi surfaces in LaFe 2P 2

Hiroshi Muranaka, Yusuke Doi, Keisuke Katayama, Hitoshi Sugawara, Rikio Settai, Fuminori Honda, Tatsuma D. Matsuda, Yoshinori Haga, Hiroshi Yamagami, Yoshichika Onuki

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

We succeeded in observing the de Haas-van Alphen (dHvA) effect in LaRuPO, which is a sister compound of iron-based oxypnictide superconductors. All the detected dHvA frequencies, which correspond to the maximum or minimum cross-sectional areas of Fermi surfaces, approximately follow the 1/cos 6 dependence, where 6 is a field-tilted angle from the tetragonal [001] direction to the [100] and [110] directions. The Fermi surfaces are found to consist of two cylindrical hole Fermi surfaces and two cylindrical electron Fermi surfaces on the basis of the similar cylindrical Fermi surfaces in LaFePO and the result of energy band calculations. The cyclotron effective mass in LaRuPO is light, ranging from 0.55 to 0.86 mo, which is compared with a large cyclotron mass in LaFePO. These two-dimensional Fermi surfaces in LaRuPO and LaFePO are also compared with the three-dimensional Fermi surfaces in LaFe 2P 2.

本文言語英語
論文番号053705
ジャーナルjournal of the physical society of japan
78
5
DOI
出版ステータス出版済み - 5 2009
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

フィンガープリント

「Two-Dimensional fermi surfaces in LaRuPO and LaFePO versus three-dimensional fermi surfaces in LaFe <sub>2</sub>P <sub>2</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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