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IMPLANTATION OF COBALT INTO OXIDE GLASSES

https://doi.org/10.18384/2224-0209-2011-3-464

Abstract

Oxide glasses were implanted with Co+ ions at nominal fluences (F) ranging from 2´1015 to 3´1017 cm-2 at energy E = 150 keV. The lines of EPR with g ~ 4 were observed at 4.2 K for the samples implanted to F = (2¸8)×1015 cm-2 and were attributed to Co2+ ions in distorted octahedral or tetrahedral environment depending on substrate. Results of TEM, optical spectroscopy and EPR indicate the formation of Co metallic nanoparticles at F >1016 cm-2. FMR line with g ~ 2.2 was observed in temperature region 4.2 ¸77 K and even at 295 K for silicate glass.

About the Authors

V. .. Zhachkin

Russian Federation


L. .. Bogomolova

Russian Federation


V. .. Tarasova

Russian Federation


References

1. Arnold, G.W. Radiation damage effects in nuclear waste glasses [Text] // Radiat. Eff. -1983. -V.74. -Р.151-159. Cattaruzza, E. Quantum-dot composite silicate glasses obtained by ion implantation [Text]. // Nucl. Instrum.& Methods in Phys. Research B (NIMB). - 2000. - V.169. - P.141-155.

2. Альтшулер, С.А., Козырев, Б.М. Электронный парамагнитный резонанс соединений элементов промежуточных групп [Текст]. // «Наука». Физ-мат. литература.-Москва. -1972. - 672с.

3. Schultz, P.C. Optical spectra of ions of first transition raw in silica glass [Text]. // J. Am. Ceram. - 1974. - V.57. - P.309-314.

4. Lytle, F.W., Greegor R.B. -Identification of transition metal sites in fused SiO2 by X-ray absorption spectroscopy [Text]. // Mat. Res. Proc. -1986. -V.61. - P.259-271.

5. Aguilar, M. Valence States of cobalt in BaTiO3: an EPR study [Text]. // Solid State commun. - 1984. - V.50. -No9. -P.837-840.

6. Ingram, D.J.E. Spectroscopy at radio and microwave frequencies [Text]. // London. - 1955. - 445 p.

7. Cintora-Gonzales, O., Muller, L., Estournes, C., Richard-Poulet, V., Poinsot, R., Grobb, J.J., Guille, J. Structure and magnetic properties of Co+-implanted silica [Text]. // NIMB. -2001. - V.178. - P.144-147.

8. France, P.W.,Carter, S.F., Parker, J.M. Oxidation states of 3d transition metals in ZrF4 glasses [Text]. // Phys. Chem. Glasses. - 1986. - V.27. -No1. - P. 32-41.

9. Boos, A., Pourroy, G., Rehspringer, J.L., Guille, J.L. Optical properies of Co2+-doped silica gel monoliths [Text]. // J. Non-Crystal. Solids. -1994. - V.176. - P.172-178.

10. Morishita, Y., Tanaka, K. Optical absorption of Co-doped SiO2-GeO2 glass rods and fibers [Text]. // J. Appl. Phys. – 2003. -V.93. – No2. - P.999-1003.


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ISSN 2224-0209 (Online)