Single crystal functional oxides on silicon

Saidur Rahman Bakaul, Claudy Rayan Serrao, Michelle Lee, Chun Wing Yeung, Asis Sarker, Shang Lin Hsu, Ajay Kumar Yadav, Liv Dedon, Long You, Asif Islam Khan, James David Clarkson, Chen-Ming Hu, Ramamoorthy Ramesh, Sayeef Salahuddin*

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

Single-crystalline thin films of complex oxides show a rich variety of functional properties such as ferroelectricity, piezoelectricity, ferro and antiferromagnetism and so on that have the potential for completely new electronic applications. Direct synthesis of such oxides on silicon remains challenging because of the fundamental crystal chemistry and mechanical incompatibility of dissimilar interfaces. Here we report integration of thin (down to one unit cell) single crystalline, complex oxide films onto silicon substrates, by epitaxial transfer at room temperature. In a field-effect transistor using a transferred lead zirconate titanate layer as the gate insulator, we demonstrate direct reversible control of the semiconductor channel charge with polarization state. These results represent the realization of long pursued but yet to be demonstrated single-crystal functional oxides on-demand on silicon.

Original languageEnglish
Article number10547
JournalNature Communications
Volume7
DOIs
StatePublished - 8 Feb 2016

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    Bakaul, S. R., Serrao, C. R., Lee, M., Yeung, C. W., Sarker, A., Hsu, S. L., Yadav, A. K., Dedon, L., You, L., Khan, A. I., Clarkson, J. D., Hu, C-M., Ramesh, R., & Salahuddin, S. (2016). Single crystal functional oxides on silicon. Nature Communications, 7, [10547]. https://doi.org/10.1038/ncomms10547