2012年1月
Measurement of a Pauli and Orbital Paramagnetic State in Bulk Gold Using X-Ray Magnetic Circular Dichroism Spectroscopy
PHYSICAL REVIEW LETTERS
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- 巻
- 108
- 号
- 4
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevLett.108.047201
- 出版者・発行元
- AMER PHYSICAL SOC
We show that bulk gold (Au) exhibits temperature-independent paramagnetism in an external magnetic field by x-ray magnetic circular dichroism spectroscopy at the Au L-2 and L-3 edges. Using the sum-rule analysis, we obtained a magnetic moment of 1.3 x 10(-4) mu B/atom in an external magnetic field of 10 T and a paramagnetic susceptibility of 8.9 x 10(-6) for the 5d orbit. The induced paramagnetism in bulk Au is characterized by a large (approximate to 30%) orbital contribution. This orbital component was retained even when Au atoms formed nanoparticles, playing an important role in stabilizing the spontaneous spin polarization in the Au nanoparticles.
- リンク情報
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- DOI
- https://doi.org/10.1103/PhysRevLett.108.047201
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000299824000019&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-84862951290&partnerID=MN8TOARS
- URL
- http://orcid.org/0000-0003-2430-6330
- ID情報
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- DOI : 10.1103/PhysRevLett.108.047201
- ISSN : 0031-9007
- ORCIDのPut Code : 47012508
- SCOPUS ID : 84862951290
- Web of Science ID : WOS:000299824000019