De Haas-van Alphen Effect and Fermi Surface Properties in Ferromagnet LaCo2P2 and Related Compounds

Atsushi Teruya, Ai Nakamura, Tetsuya Takeuchi, Fuminori Honda, Dai Aoki, Hisatomo Harima, Kiyoharu Uchima, Msato Hedo, Takao Nakama, Yoshichika Onuki

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

We grew single crystals of a ferromagnet LaCo2P2 and an antiferromagnet CaCo2P2, and clarified the magnetic properties by measuring the electrical resistivity, specific heat, magnetic susceptibility, and magnetization. For LaCo2P2, we also carried out the de Haas-van Alphen (dHvA) experiment. Detected dHvA branches are well explained by the results of energy band calculations using a full-potential linearized augmented plane wave method within the local spin density approximation, where the ferromagnetic state is assumed. The cyclotron effective masses are (2-3)m0 (m0: rest mass of an electron). The present relatively large cyclotron masses in LaCo2P2 are due to ferromagnetic correlations of Co-3d conduction electrons, which are compared with much larger cyclotron masses of (3-7)m0 for a nearly ferromagnet SrCo2P2.

Original languageEnglish
Pages (from-to)876-883
Number of pages8
JournalPhysics Procedia
Volume75
DOIs
Publication statusPublished - 2015
Event20th International Conference on Magnetism, ICM 2015 - Barcelona, Spain
Duration: 2015 Jul 52015 Jul 10

Keywords

  • CaCo P
  • LaCo P
  • SrCo P
  • dHvA effect
  • energy band calculation
  • itinerant magnetism

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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