Ferromagnetism in MgTiO3-Ti2O3 Solid Solutions

Abstract:

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Ti-rich Mg1ЎxTi1+xO3 samples were synthesized by solid-state reaction. Sampleswere characterized by room temperature x-ray powder di®raction, scanning electron microscopyand energy dispersive spectroscopy of x-rays. Hexagonal lattice parameters a and c increasedwith increasing Ti content. Time-of-Flight-Secondary-Ion-Mass-Spectroscopy (ToF-SIMS, de-tection limit 10Ў6) measurements revealed that no magnetic impurities were present. Sampleswith x = 0:10; 0:12 and 0:32 showed ferromagnetic hysteresis loops. The result demonstratesthat excess Ti at the Mg-O cation layer controls the magnetic properties. This is a technologicaladvantage especially for thin Їlm applications.

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Periodical:

Edited by:

B. J. Ruck and T. Kemmitt

Pages:

23-27

DOI:

10.4028/www.scientific.net/MSF.700.23

Citation:

Y. Fujioka et al., "Ferromagnetism in MgTiO3-Ti2O3 Solid Solutions", Materials Science Forum, Vol. 700, pp. 23-27, 2012

Online since:

September 2011

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$35.00

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