Magnetic circular dichroism and the nature of ferromagnetism in colloidal gold nanoparticles


Тип публикации: статья из журнала

Год издания: 2013

Идентификатор DOI: 10.1134/S0021364013020124

Аннотация: The spectra of optical absorption and of magnetic circular dichroism (MCD) have been measured in the 350-1150 nm wavelength range for a set of colloidal solutions containing Au nanoparticles with the average size of 6 nm having thiolate coatings with different degrees of chirality. The form of absorption and MCD spectra suggests thПоказать полностьюe dipole character of interband transitions involving the 5d-6(sp) orbitals. The absence (within the experimental error) of the dependence of the MCD spectra on the coating type rules out the hypothesis on the orbital nature of the observed magnetism. We argue that the spin polarization plays the dominant role in the magnetism of gold nanoparticles with a thiolate coating.

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Выпуск журнала: Vol. 97, Is. 2

Номера страниц: 98-101

ISSN журнала: 00213640

Место издания: NEW YORK



  • Sokolov A.E. (Kirensky Institute of Physics, Siberian Branch,Russian Academy of Sciences)
  • Ovchinnikov S.G. (Siberian Federal University)
  • Zabluda V.N. (Kirensky Institute of Physics, Siberian Branch,Russian Academy of Sciences)
  • Kal'sin A.M. (Nesmeyanov Institute of Organoelement Compounds,Russian Academy of Sciences)
  • Zubavichus Y.V. (Kurchatov Centre of Synchrotron Radiation and Nanotechnologies,National Research Centre Kurchatov Institute)

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