Patterning of ferroelectric nanodot arrays using a silicon nitride shadow mask
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- Patterning of ferroelectric nanodot arrays using a silicon nitride shadow mask
- Shin, Hyung-Joon; Choi, JH; Yang, HJ; Park, YD; Kuk, Y; Kang, CJ
- Nanodot arrays; Silicon nitrade
- Issue Date
- AMER INST PHYSICS
- APPLIED PHYSICS LETTERS, v.87, no.11, pp.113114-1 - 113114-3
- We grew well-ordered arrays of ferroelectric Pb (Zr0.2 Ti0.8) O3 (PZT) nanodots on a SrRu O3 SrTi O3 substrate by pulsed laser deposition. A silicon nitride shadow mask with ordered holes was used for patterning of the PZT arrays. Each dot has a height of ∼15 nm and a diameter of ∼120 nm with a similar dome shape over a large area. The ferroelectric properties of individual PZT dots were investigated by piezoresponse force microscopy. A single dot could be polarized individually and the polarized state remained unrelaxed to ∼20 min.
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