High Speed Epitaxial Perovskite Memory on Flexible Substrates
Bakaul, S.R., C.R. Serrao, O. Lee, Z. Lu, A. Yadav, C. Carraro, R. Maboudian, Ramamoorthy Ramesh, S. Salahuddin
Researchers demonstrate integration of <001> oriented single crystal PZT memory devices on a flexible substrate by using a layer transfer technique. The transferred PZT shows a remnant polarization of approximately 75 ΜC cm-2 on the flexible substrate, comparable to the best values achievable in an epitaxial film grown on a lattice matched substrate. The researchers also demonstrate switching speed of 57 ns at 4 V, which is at least one order of magnitude faster than any previous demonstration on a bent substrate.
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