Abstract
Silicon oxide aerogel samples irradiated with x rays at room temperature have been analyzed using the electron paramagnetic resonance method. It has been found that three types of paramagnetic centers appear: paramagnetic centers with a g factor of 2.0035, centers associated with the presence of protons in SiO2 globules, and centers in the adsorbed film on the aerogel surface. The fast (T fast = 30 h) and slow (T slow = 70 d) processes have been revealed in the recombination of these centers.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Golov, J. V. Porto, D. A. Geller, et al., Physica B 280, 134 (2000).
S. S. Kistler, J. Phys. Chem. 34, 52 (1932); 39, 79 (1935).
S. Henning and L. Svensson, Phys. Scr. 23, 697 (1981).
H. R. Glyde, F. Albergamo, R. T. Azuah, et al., Eur. Phys. J. E 12, 63 (2003).
I. A. Fomin, JETP 98, 974 (2004).
G. E. Volovik, JETP Lett. 84, 455 (2006).
A. Osawa, H. Kato, T. Mimori, et al., J. Low Temp. Phys. 150, 499 (2008).
K. Matsumoto, H. Tsuboya, K. Yoshino, et al., J. Low Temp. Phys. 148, 615 (2007).
M. Rossi, D. E. Galli, and L. Reatto, J. Low Temp. Phys. 146, 95 (2007).
D. I. Bradley, S. N. Fisher, A. M. Guenault, et al., J. Low Temp. Phys. 150, 445 (2008).
J. M. Parpia, A. D. Fefferman, J. V. Porto, et al., J. Low Temp. Phys. 150, 482 (2008).
R. Kado, H. Nakagawa, K. Obara, et al., J. Low Temp. Phys. 150, 472 (2008).
H. Saito and T. Hyodo, Phys. Rev. B 60, 11070 (1999).
By. V. Kazansky, G. B. Pariisky, and V. V. Voevodsky, Discuss. Faraday Soc. 31, 203 (1961).
M. Ikea, New Aplication of Electon Spin Resonance (World Sci., Singapore, 1993).
O. I. Werbina and A. B. Brik, Fiz. Tverd. Tela 40, 651 (1998) [Phys. Solid State 40, 597 (1998)].
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © G.V. Mamin, A.A. Rodionov, M.S. Tagirov, D.A. Tayurskii, N. Mulders, 2008, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2008, Vol. 88, No. 4, pp. 281–285.
Rights and permissions
About this article
Cite this article
Mamin, G.V., Rodionov, A.A., Tagirov, M.S. et al. Electron paramagnetic resonance of radiation-induced paramagnetic centers in an aerogel. Jetp Lett. 88, 244–248 (2008). https://doi.org/10.1134/S0021364008160042
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0021364008160042