Abstract
Zn1-xMgx (x=0.3) thin films have been fabricated on Pt/TiO2/SiO2/Si substrates using multimagnetron sputtering technique. The films with wurtzite structure showed a (002) preferred orientation. Ferroelectricity in Zn1-xMgxO films was established from the temperature dependent dielectric constant and the polarization hysteresis loop. The temperature dependent study of dielectric constant at different frequencies exhibited a dielectric anomaly at 110 °C. The resistivity versus temperature characteristics showed an anomalous increase in the vicinity of the dielectric transition temperature. The Zn 1-xMgxO thin films exhibit well-defined polarization hysteresis loop, with a remanent polarization of 0.2 μnC/cm2 and coercive field of 8 kV/cm at room temperature.
Original language | English |
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Article number | 082905 |
Journal | Applied Physics Letters |
Volume | 89 |
Issue number | 8 |
DOIs | |
Publication status | Published - 31-08-2006 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)