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Static negative capacitance of a ferroelectric nano-domain nucleus.
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SYSNO ASEP 0484772 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Static negative capacitance of a ferroelectric nano-domain nucleus. Author(s) Sluka, T. (CH)
Mokrý, Pavel (UFP-V) RID
Setter, N. (CH)Article number 152902 Source Title Applied Physics Letters. - : AIP Publishing - ISSN 0003-6951
Roč. 111, č. 15 (2017)Number of pages 5 s. Publication form Print - P Language eng - English Country US - United States Keywords Ferroelectric materials ; Capacitors ; Bipolar transistors ; Electrodes ; Dielectrics Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GA14-32228S GA ČR - Czech Science Foundation (CSF) Institutional support UFP-V - RVO:61389021 UT WOS 000413196100027 EID SCOPUS 85031287248 DOI https://doi.org/10.1063/1.4989391 Annotation Miniaturization of conventional field effect transistors (FETs) approaches the fundamental limits beyond which opening and closing the transistor channel require higher gate voltage swing and cause higher power dissipation and heating. This problem could be eliminated by placing a ferroelectric layer between the FET gate electrode and the channel, which effectively amplifies the gate voltage. The original idea of using a bulk ferroelectric negative capacitor suffers however from irreversible multi-domain ferroelectric switching, which does not allow us to stabilize static negative capacitance, while a recent reversible solution with super-lattices may be difficult to integrate onto FET. Here, we introduce a solution which provides static negative capacitance from a nano-domain nucleus. Phase-field simulations confirm the robustness of this concept, the conveniently achievable small effective negative capacitance and the potentially high compatibility of such a negative nano-capacitor with FET technology. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2018
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