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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/3987

Title: Diameter dependence of ferromagnetic spin moment in Au nanocrystals
Authors: Hori, H.
Yamamoto, Y.
Iwamoto, T.
Miura, T.
Teranishi, T.
Miyake, M.
Issue Date: 2004-05
Publisher: American Physical Society
Magazine name: Physical Review B
Volume: 69
Start page: 174411-1
End page: 174411-5
DOI: 10.1103/PhysRevB.69.174411
Abstract: Au nanoparticles exhibit ferromagnetic spin polarization and show diameter dependence in magnetization. The magnetic moment per Au atom in the particle attains its maximum value at a diameter of about 3 nm in the magnetization-diameter curve. Because Au metal is a typical diamagnetic material, its ferromagnetic polarization mechanism is thought to be quite different from the ferromagnetism observed in transition metals. The size effect strongly suggests the existence of some spin-correlation effect at the nanoscale. The so-called "Fermi hole effect" is the most probable one given in the free-electron gas system. Ferromagnetism in Au nanoparticles is discussed using this model.
Rights: H. Hori, Y. Yamamoto, T. Iwamoto, T. Miura, T. Teranishi and M. Miyake, Physical Review B, 69, 174411, 2004. "Copyright 2004 by the American Physical Society." http://link.aps.org/abstract/PRB/v69/e174411
Type: Article
URI: http://hdl.handle.net/10119/3987
Material Type: publisher
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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