Observation of the c-f hybridization effect in valence-transition system EuPtP

Hiroaki Anzai, Katsuya Ichiki, Eike F. Schwier, Hideaki Iwasawa, Masashi Arita, Hitoshi Sato, Kenya Shimada, Hirofumi Namatame, Masaki Taniguchi, Akihiro Mitsuda, Hirofumi Wada, Kojiro Mimura

Research output: Contribution to journalArticlepeer-review

Abstract

We study the electronic structure of EuPtP, which exhibits two first-order valence transitions at T1 = 247 K and T2 = 201 K, using angle-resolved photoemission spectroscopy. Below T2, we observe an energy gap at the crossing point of the bulk Eu 4f and conduction bands. The shape of band dispersions is described by a hybridization-band picture based on the periodic Anderson model. Our results demonstrate the c-f hybridization effect in the low-temperature phase of EuPtP.

Original languageEnglish
Article numbere201600185
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume14
Issue number6
DOIs
Publication statusPublished - Jun 2017

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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