Two dimensional Fermi surfaces of CePtAs and CePtP studied by the de Haas-van Alphen and magnetoresistance experiments

Rikio Settai, Yoshiyuki Yoshida, Akinobu Yamaguchi, Yoshichika Onuki, Shunsuke Yoshii, Mitsuo Kasaya, Hisatomo Harima, Katsuhiko Takegahara

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We have found the cylindrical Fermi surfaces of CePtX (X=As, P) by the de Haas-van Alphen (dHvA) and magnetoresistance experiments. This is mainly due to the crystal structure, where the nearest neighbor distance between Pt and X atoms on the Pt-X plane is extremely short. The strong hybridization between the Pt 5d(x2 - y2, xy) and X p(x, y) states makes partially occupied anti-bonding bands, resulting in the cylindrical Fermi surfaces. The cyclotron effective mass is light, being in the range of 0.47 to 0.84 m0 for CePtAs and 0.34 to 0.82 m0 for CePtP. The present experimental results are well explained by the FLAPW band calculations.

Original languageEnglish
Pages (from-to)3615-3622
Number of pages8
Journaljournal of the physical society of japan
Volume68
Issue number11
DOIs
Publication statusPublished - 1999 Jan 1

Keywords

  • Band theory
  • CePtAs
  • CePtP
  • Magnetoresistance
  • de Haas-van Alphen effect

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Two dimensional Fermi surfaces of CePtAs and CePtP studied by the de Haas-van Alphen and magnetoresistance experiments'. Together they form a unique fingerprint.

  • Cite this

    Settai, R., Yoshida, Y., Yamaguchi, A., Onuki, Y., Yoshii, S., Kasaya, M., Harima, H., & Takegahara, K. (1999). Two dimensional Fermi surfaces of CePtAs and CePtP studied by the de Haas-van Alphen and magnetoresistance experiments. journal of the physical society of japan, 68(11), 3615-3622. https://doi.org/10.1143/JPSJ.68.3615