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

doi:10.1143/JPSJ.78.033706

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 journal › Article › peer-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 language	English
Article number	033706
Journal	journal of the physical society of japan
Volume	78
Issue number	3
DOIs	https://doi.org/10.1143/JPSJ.78.033706
Publication status	Published - 2009 Mar
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.78.033706

Cite this

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title = "Fermi Surface in BaNi 2P 2 ",

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.",

keywords = "BaNi P, De Haas-van Alphen effect, Electronic structure, Fermi surface, Pnictide superconductor",

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

year = "2009",

month = mar,

doi = "10.1143/JPSJ.78.033706",

language = "English",

volume = "78",

journal = "Journal of the Physical Society of Japan",

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T1 - Fermi Surface in BaNi 2P 2

AU - Terashima, Taichi

AU - Kimata, Motoi

AU - Satsukawa, Hidetaka

AU - Harada, Atsushi

AU - Hazama, Kaori

AU - Imai, Motoharu

AU - Uji, Shinya

AU - Kito, Hijiri

AU - Iyo, Akira

AU - Eisaki, Hiroshi

AU - Harima, Hisatomo

PY - 2009/3

Y1 - 2009/3

N2 - 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.

AB - 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.

KW - BaNi P

KW - De Haas-van Alphen effect

KW - Electronic structure

KW - Fermi surface

KW - Pnictide superconductor

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