Transport properties of LaTiO3+x films and heterostructures
Abstract
We report on the transport properties of LaTiO3+ɛ and LaTiO3.5 films. The LaTiO3+ɛ samples show metallic transport and several samples exhibit a hysteretic drop of resistance during cooldown at ∼240 K. The ferroelectric LaTiO3.5 samples, grown in capacitor structures, have nonlinear, diode-like and hysteretic V(I) characteristics. Two charge-controlled transport regimes are found, which can be utilized for switching the devices between two voltage states.
- Publication:
-
Applied Physics Letters
- Pub Date:
- May 2003
- DOI:
- 10.1063/1.1572960
- Bibcode:
- 2003ApPhL..82.3077S
- Keywords:
-
- 77.84.Dy;
- 77.55.+f;
- 77.80.Fm;
- 73.61.Le;
- Niobates titanates tantalates PZT ceramics etc.;
- Dielectric thin films;
- Switching phenomena;
- Other inorganic semiconductors