Ferromagnetism in MgTiO3-Ti2O3 Solid Solutions
| Periodical | Materials Science Forum (Volume 700) |
|---|---|
| Main Theme | Advanced Materials and Nanotechnology |
| Edited by | B. J. Ruck and T. Kemmitt |
| Pages | 23-27 |
| DOI | 10.4028/www.scientific.net/MSF.700.23 |
| Citation | Yukari Fujioka et al., 2011, Materials Science Forum, 700, 23 |
| Online since | September, 2011 |
| Authors | Yukari Fujioka, Johannes Frantti, Risto M. Nieminen |
| Keywords | Cryo-SEM, Ferromagnetism, Ilmenite Oxides, Magnesium Titanate, ToF-SIMS, X-Ray Diffraction (XRD) |
| Price | US$ 28,- |
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.