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Nagai Y, Chiba T, Tang Z, et al. Fermi surface of nanocrystalline embedded particles in materials: bcc Cu in Fe. Phys Rev Lett. 2001;87(17):176402doi: 10.1103/PhysRevLett.87.176402.
Nagai, Y., Chiba, T., Tang, Z., Akahane, T., Kanai, T., Hasegawa, M., Takenaka, M., & Kuramoto, E. (2001). Fermi surface of nanocrystalline embedded particles in materials: bcc Cu in Fe. Physical review letters, 87(17), 176402. https://doi.org/10.1103/PhysRevLett.87.176402
Nagai, Y, et al. "Fermi surface of nanocrystalline embedded particles in materials: bcc Cu in Fe." Physical review letters vol. 87,17 (2001): 176402. doi: https://doi.org/10.1103/PhysRevLett.87.176402
Nagai Y, Chiba T, Tang Z, Akahane T, Kanai T, Hasegawa M, Takenaka M, Kuramoto E. Fermi surface of nanocrystalline embedded particles in materials: bcc Cu in Fe. Phys Rev Lett. 2001 Oct 22;87(17):176402. doi: 10.1103/PhysRevLett.87.176402. Epub 2001 Oct 05. PMID: 11690288.
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Phys Rev Lett. 2001 Oct 22;87(17):176402. doi: 10.1103/PhysRevLett.87.176402. Epub 2001 Oct 05.

Fermi surface of nanocrystalline embedded particles in materials: bcc Cu in Fe.

Physical review letters

Y Nagai, T Chiba, Z Tang, T Akahane, T Kanai, M Hasegawa, M Takenaka, E Kuramoto

Affiliations

  1. The Oarai Branch, Institute for Materials Research, Tohoku University, Oarai, Ibaraki 311-1313, Japan.

PMID: 11690288 DOI: 10.1103/PhysRevLett.87.176402

Abstract

We report that a positron can act as a probe to directly reveal electronic structures of nanocrystalline embedded particles in materials. The Fermi surface (FS) of "bcc" Cu nanoparticles in an Fe matrix is observed as the first example. A two-dimensional angular correlation of the positron annihilation radiation (2D-ACAR) method is used to measure the momentum distribution which reflects the FS topology. The obtained 2D-ACAR spectra show strong and characteristic anisotropy associated with the necks of the FS around the [110] Brillouin zone boundaries of the bcc Cu, which are well reproduced by full-potential linearized argumented plane-wave calculations.

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