Abstract
Pulsed laser deposition (PLD) of (Pb,Sr)TiO3 (PSrT) film on Pt/SiO2/Si at low substrate temperatures (Ts), ranging from 300–450 °C, has been investigated. As Ts increases, the films reveal coarsening clusters, improved crystallization of the perovskite phase, distinct capacitance–electric field (C–E) hysteretic loops and a larger dielectric constant. The 350 °C-deposited film shows strong (100) preferred orientation and optimum dielectric properties with the dielectric constant of ∼620. The current density increases as the measurement temperature and the electric field increase. Moreover, PSrT films exhibit a strong negative temperature coefficient of resistance (NTCR) behavior at temperatures ranging from 100 to 390 °C.
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81.15.Fg; 77.22.Ch; 68.60.Dv
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Wang, JL., Lai, YS., Chiou, BS. et al. Temperature-dependent characteristics of pulse-laser-deposited (Pb,Sr)TiO3 films at low temperatures. Appl. Phys. A 90, 129–134 (2008). https://doi.org/10.1007/s00339-007-4224-1
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DOI: https://doi.org/10.1007/s00339-007-4224-1