Fermi Surface in BaNi 2P 2

Taichi Terashima, Motoi Kimata, Hidetaka Satsukawa, Atsushi Harada, Kaori Hazama, Motoharu Imai, Shinya Uji, Hijiri Kito, Akira Iyo, Hiroshi Eisaki, Hisatomo Harima

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

We report measurements of the de Haas-van Alphen (dHvA) oscillation and a band structure calculation for the pnictide superconductor BaNi 2P 2, which is isostructural to BaFe 2As 2, the mother compound of the iron-pnictide high-T c superconductor (Ba 1- xK x)Fe 2As 2. Six dHvA-frequency branches with frequencies up to ̃8 kT were observed, and they are in excellent agreement with results of the band-structure calculation. The determined Fermi surface is large, enclosing about one electron and hole per formula unit, and three-dimensional. This is in contrast to the small two-dimensional Fermi surface expected for the iron-pnictide high-T c superconductors. The mass enhancement is about two.

Original languageEnglish
Article number033706
Journaljournal of the physical society of japan
Volume78
Issue number3
DOIs
Publication statusPublished - 2009 Mar
Externally publishedYes

Keywords

  • BaNi P
  • De Haas-van Alphen effect
  • Electronic structure
  • Fermi surface
  • Pnictide superconductor

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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