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Ferromagnetism triggered by band tripling in ruthenium oxide Sr4Ru3O10
https://repo.qst.go.jp/records/2001337
https://repo.qst.go.jp/records/200133722b1a228-3679-4fa5-bcb3-2b8c7d22ef36
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||||||||||||||
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| 公開日 | 2024-10-18 | |||||||||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||||||||
| タイトル | Ferromagnetism triggered by band tripling in ruthenium oxide Sr4Ru3O10 | |||||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||||
| 言語 | ||||||||||||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||||||||||||||||
| 著者 |
N. Watanabe(Tohoku Univ.)
× N. Watanabe(Tohoku Univ.)
× S. Souma(WPI-AIMR.Tohoku Univ.)
× K. Nakayama(Tohoku Univ.)
× K. Yamauchi(CSRN.Osaka Univ.)
× J. F. Ribeiro(WPI-AIMR.Tohoku Univ.)
× Y. Wang(Pennsylvania State Univ.)
× Kitamura Miho
× Horiba Koji
× Hiroshi Kumigashira(IMRAM.Tohoku Univ.)
× T. Oguchi(CSRN.Osaka Univ.)
× Z. Q. Mao(Pennsylvania State Univ.)
× Y. P. Chen(WPI-AIMR.Tohoku Univ.)
× T. Sato(WPI-AIMR.Tohoku Univ.)
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| 抄録 | ||||||||||||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||||||||||||
| 内容記述 | Itinerant ferromagnetism is understood in terms of a quasiparticle picture with renormalized many-body effects. While the ferromagnetic ground state is destabilized by thermal and quantum fluctuations leading to exotic states such as unconventional superconductivity, how the quasiparticles evolve across the ferromagnetic transition is a target of intensive debate. Here, we present a type of ferromagnetic transition that is accompanied by a drastic reconstruction of quasiparticle spectrum in a layered ferromagnetic ruthenate, Sr4?Ru3?O10. Angle-resolved photoemission spectroscopy uncovered that the three-dimensional coherent states below the ferromagnetic transition temperature (??C) turn into two-dimensional incoherent electronic states slightly above ??C characterized by the disappearance of trilayer band splitting, ferromagnetic exchange splitting, and long-lived quasiparticles. Our findings suggest that the electronic coherence strongly modifies the fermiology and magnetic order, pointing to an intriguing coupling between quasiparticles and magnetic properties. | |||||||||||||||||||||||||||||||
| 書誌情報 |
Physical Review B 巻 110, p. 1-10, 発行日 2024-10 |
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| 出版者 | American Physical Society | |||||||||||||||||||||||||||||||
| DOI | ||||||||||||||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||||||||||||||
| 関連識別子 | 10.1103/PhysRevB.110.155134 | |||||||||||||||||||||||||||||||
