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Single crystal functional oxides on silicon

Publication Type

Journal Article

Authors

Bakaul, S.R, C.R Serrao, M Lee, C.W Yeung, A Sarker, S.-L Hsu, A.K Yadav, L Dedon, L You, A.I Khan, J.D Clarkson, C Hu, Ramamoorthy Ramesh, S Salahuddin

DOI

10.1038/ncomms10547

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.

Journal

Nature Communications

Volume

Year of Publication

2016

ISSN

20411723

Notes

cited By 48

Research Areas

Ramesh Lab