Study on Momentum Density of Electrons and Fermi Surface in Niobium by Positron Annihilation

Takeshi Kubota; Hitoshi Kondo; Kazuhiro Watanabe; Yasukazu Murakami; Yang Koo Cho; Shoichiro Tanigawa; Takao Kawano; Gun Woong Bahng

doi:10.1143/JPSJ.59.4494

Study on Momentum Density of Electrons and Fermi Surface in Niobium by Positron Annihilation

Takeshi Kubota, Hitoshi Kondo, Kazuhiro Watanabe, Yasukazu Murakami, Yang Koo Cho, Shoichiro Tanigawa, Takao Kawano, Gun Woong Bahng

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The three dimensional electron-positron momentum density in niobium has been reconstructed from measurements of two dimensional angular correlation of positron annihilation radiations (2D-ACAR) followed by the image reconstruction technique based on a direct Fourier transformation. We determined the position of the Fermi surface sheets; Γ-centered hole octahedron, multiply connected jungle-gym arms and TV-centered hole ellipsoids. The Fermi surface topology is in good agreement with the theory.

Original language	English
Pages (from-to)	4494-4502
Number of pages	9
Journal	journal of the physical society of japan
Volume	59
Issue number	12
DOIs	https://doi.org/10.1143/JPSJ.59.4494
Publication status	Published - 1990 Jan 1

Keywords

2D-ACAR
Fermi surface
experiment
momentum density
niobium
positron annihilation
three dimensional reconstruction

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1143/JPSJ.59.4494

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title = "Study on Momentum Density of Electrons and Fermi Surface in Niobium by Positron Annihilation",

abstract = "The three dimensional electron-positron momentum density in niobium has been reconstructed from measurements of two dimensional angular correlation of positron annihilation radiations (2D-ACAR) followed by the image reconstruction technique based on a direct Fourier transformation. We determined the position of the Fermi surface sheets; Γ-centered hole octahedron, multiply connected jungle-gym arms and TV-centered hole ellipsoids. The Fermi surface topology is in good agreement with the theory.",

keywords = "2D-ACAR, Fermi surface, experiment, momentum density, niobium, positron annihilation, three dimensional reconstruction",

author = "Takeshi Kubota and Hitoshi Kondo and Kazuhiro Watanabe and Yasukazu Murakami and Cho, {Yang Koo} and Shoichiro Tanigawa and Takao Kawano and Bahng, {Gun Woong}",

year = "1990",

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doi = "10.1143/JPSJ.59.4494",

language = "English",

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

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T1 - Study on Momentum Density of Electrons and Fermi Surface in Niobium by Positron Annihilation

AU - Kubota, Takeshi

AU - Kondo, Hitoshi

AU - Watanabe, Kazuhiro

AU - Murakami, Yasukazu

AU - Cho, Yang Koo

AU - Tanigawa, Shoichiro

AU - Kawano, Takao

AU - Bahng, Gun Woong

PY - 1990/1/1

Y1 - 1990/1/1

N2 - The three dimensional electron-positron momentum density in niobium has been reconstructed from measurements of two dimensional angular correlation of positron annihilation radiations (2D-ACAR) followed by the image reconstruction technique based on a direct Fourier transformation. We determined the position of the Fermi surface sheets; Γ-centered hole octahedron, multiply connected jungle-gym arms and TV-centered hole ellipsoids. The Fermi surface topology is in good agreement with the theory.

AB - The three dimensional electron-positron momentum density in niobium has been reconstructed from measurements of two dimensional angular correlation of positron annihilation radiations (2D-ACAR) followed by the image reconstruction technique based on a direct Fourier transformation. We determined the position of the Fermi surface sheets; Γ-centered hole octahedron, multiply connected jungle-gym arms and TV-centered hole ellipsoids. The Fermi surface topology is in good agreement with the theory.

KW - 2D-ACAR

KW - Fermi surface

KW - experiment

KW - momentum density

KW - niobium

KW - positron annihilation

KW - three dimensional reconstruction

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JO - Journal of the Physical Society of Japan

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Study on Momentum Density of Electrons and Fermi Surface in Niobium by Positron Annihilation

Abstract

Keywords

ASJC Scopus subject areas

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