Magnetic properties of nanoporous Si powder
by A.V. Brodovoi, S.G. Bunchuk, V.V. Pokropivny, V.V. Skorokhod
International Journal of Nanotechnology (IJNT), Vol. 3, No. 1, 2006

Abstract: Results of magnetic susceptibility and electron paramagnetic resonance studies of porous silicon powder (g = 2.0055) obtained by electrochemical technique are presented. In comparison with diamagnetic bulk Si (χ_d = –2.29 × 10–7 cm³/g), the porous Si powder exhibits paramagnetic properties (χ_p = 1.1 × 10–5 cm³/g) with weak share of ferromagnetism (χ_f = 1.85 × 10–5 cm³/g). Centres of 'dangling covalent bonds' type on the surface of silicon nanocrystals were registered to be responsible for the EPR spectra. In suggestion of uniform distribution of the paramagnetic centres in powder bulk its density was estimated to be 3.5 × 1022 cm^-3.

Online publication date: Wed, 18-Jan-2006

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Nanotechnology (IJNT):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com