corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 93 » Issue 11
< Previous Article | Next Article >

Phys. Rev. Lett. 93, 116801 (2004) [4 pages]

Direct Observation of Ferromagnetic Spin Polarization in Gold Nanoparticles

Download: PDF (278 kB) Buy this article Export: BibTeX or EndNote (RIS)

Y. Yamamoto1, T. Miura1, M. Suzuki2, N. Kawamura2, H. Miyagawa2, T. Nakamura2, K. Kobayashi2, T. Teranishi1,*, and H. Hori1
1School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), 1-1 Asahidai, Tatsunokuchi, Ishikawa, 923-1292, Japan
2Japan Synchrotron Radiation Research Institute (JASRI / SPring-8), 1-1-1 Kouto, Mikazuki, Sayou 679-5198, Japan

See Also: Erratum

Received 24 March 2004; published 7 September 2004

We report the first direct observation of ferromagnetic spin polarization of Au nanoparticles with a mean diameter of 1.9 nm using x-ray magnetic circular dichroism (XMCD). Owing to the element selectivity of XMCD, only the gold magnetization is explored. Magnetization of gold atoms as estimated by XMCD shows a good agreement with results obtained by conventional magnetometry. This evidences intrinsic spin polarization in nanosized gold.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.116801
DOI:
10.1103/PhysRevLett.93.116801
PACS:
73.22.–f, 75.50.Tt, 75.70.Rf, 75.75.+a

*Present address: Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan

See Also

Erratum: Y. Yamamoto, T. Miura, T. Teranishi, H. Hori, M. Suzuki, N. Kawamura, H. Miyagawa, T. Nakamura, and K. Kobayashi, Erratum: Direct Observation of Ferromagnetic Spin Polarization in Gold Nanoparticles [Phys. Rev. Lett. 93, 116801 (2004)], Phys. Rev. Lett. 96, 139902 (2006).

 
< Previous Article | Next Article >