Magnetic and electric properties of vanadium doped ZnO films

Vanadium doped ZnO films (n-type Zn1-xVxO (x = 0.05-0.15)) were formed on s apphire substrates using a pulsed laser deposition technique, and their mag netic and electric properties were examined. Some of the V doped ZnO films exhibited ferromagnetic behavior with a Curie temperature higher than 350 K . The magnetic properties of V doped ZnO films were found to depend on the concentration of V ions and carriers. The results of optical transmission s pectra indicated that they were transparent ferromagnets at room temperatur e. (C) 2001 Elsevier Science Ltd. All rights reserved.