Abstract
Memristive materials and devices, which enable information storage and processing on one and the same physical platform, offer an alternative to conventional von Neumann computation architectures. Their continuous spectra of states with intricate field-history dependence give rise to complex dynamics, the spatial aspect of which has not been studied in detail yet. Here, we demonstrate that ferroelectric domain switching induced by a scanning probe microscopy tip exhibits rich pattern dynamics, including intermittency, quasiperiodicity and chaos. These effects are due to the interplay between tip-induced polarization switching and screening charge dynamics, and can be mapped onto the logistic map. Our findings may have implications for ferroelectric storage, nanostructure fabrication and transistor-less logic.
Original language | English |
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Pages (from-to) | 59-66 |
Number of pages | 8 |
Journal | Nature Physics |
Volume | 10 |
Issue number | 1 |
DOIs | |
State | Published - Dec 23 2013 |
Funding
A part of this research (S.J., E.S., A.K., S.V.K.) was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy. A.V.I. and V.Y.S. acknowledge CNMS user proposal, RFBR (Grants 11-02-91066-CNRS-a, 13-02-01391-a, 13-02-96041-r-Ural-a), Ministry of Education and Science (Contract 14.513.12.0006). Y.V.P. was supported by National Science Foundation grant ECCS-1202383. The authors gratefully acknowledge Y. Wu (Tufts University) for posting the original version of the chaos analysis codes on the MathWorks website. A.N.M. and E.A.E. acknowledge the support through the bilateral SFFR-NSF project (US National Science Foundation under NSF-DMR-1210588 and State Fund of Fundamental State Fund of Fundamental Research of Ukraine, grant UU48/002). We gratefully acknowledge A. K. Tagantsev (EPFL) for valuable advice on the role of screening phenomena on ferroelectric phase stability, and B. Sumpter and S. Pennycook (ORNL) for illuminating discussions. S.V.K. and V.Y.S. would like to acknowledge many useful discussions with the late Y. D. Tretyakov (Moscow State University, Russia), who introduced them to the field of chaos and fractals in solid-state systems and inspired this work, and dedicate this paper to him in memoriam.
Funders | Funder number |
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CNMS | |
Scientific User Facilities Division | |
State Fund of Fundamental State Fund of Fundamental Research of Ukraine | UU48/002 |
National Science Foundation | NSF-DMR-1210588, 1202383, ECCS-1202383 |
National Science Foundation | |
U.S. Department of Energy | |
Basic Energy Sciences | |
Oak Ridge National Laboratory | |
Russian Foundation for Basic Research | 13-02-96041-r-Ural-a, 11-02-91066-CNRS-a, 13-02-01391-a |
Russian Foundation for Basic Research | |
Ministry of Education and Science of the Russian Federation | 14.513.12.0006 |
Ministry of Education and Science of the Russian Federation |