The authors report on the fabrication of room-temperature ferrimagnetic semiconductor thin films composed of 0.6FeTi O3 0.4 Fe2 O3 solid solution on α- Al2 O3 (0001) substrates using a pulsed laser deposition method. A single ordered phase (R 3- symmetry) is obtained under very limited deposition conditions including oxygen partial pressure of 2.0× 10-3 Pa and substrate temperature of 700 °C. The thin film with the ordered phase is an n -type semiconductor and ferrimagnetic with the Curie temperature >400 K. The Hall effect measurements at room temperature suggest that the carrier spins are polarized.
|Journal||Applied Physics Letters|
|Publication status||Published - 2006|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)