Multi-band electronic structure of ferromagnetic CeRuPO

Masaya Takahashi, Daiki Ootsuki, Masafumi Horio, Masashi Arita, Hirofumi Namatame, Masaki Taniguchi, Naurang L. Saini, Hitoshi Sugawara, Takashi Mizokawa

研究成果: Article査読

1 被引用数 (Scopus)


We have studied the multi-band electronic structure of ferromagnetic CeRuPO (TC = 15 K) by means of angle-resolved photoemission spectroscopy (ARPES). The ARPES results show that three hole bands exist around the zone center and two of them cross the Fermi level (EF). Around the zone corner, two electron bands are observed and cross EF. These hole and electron bands, which can be assigned to the Ru 4d bands, are basically consistent with the band-structure calculation including their orbital characters. However, one of the electron bands with Ru 4d 3z2 − r2 character is strongly renormalized indicating correlation effect due to hybridization with the Ce 4 f orbitals. The Ru 4d 3z2 − r2 band changes across TC suggesting that the out-of-plane 3z2 − r2 orbital channel plays essential roles in the ferromagnetism.

ジャーナルjournal of the physical society of japan
出版ステータスPublished - 2018

ASJC Scopus subject areas

  • 物理学および天文学(全般)


「Multi-band electronic structure of ferromagnetic CeRuPO」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。