The negative differential capacitance (NDC) of ferroelectrics could be used to reduce the energy consumption of ultra-scaled logic devices. An NDC phenomenon in ultrathin ferroelectric zirconium-doped hafnia is demonstrated. Field-effect transistors incorporating this ferroelectric in the gate stack display enhanced on-currents and reduced off-currents compared with conventional analogues, as well as tunable and enduring NDC.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$29.99 / 30 days
cancel any time
Subscribe to this journal
Receive 12 digital issues and online access to articles
$119.00 per year
only $9.92 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
References
Salahuddin, S. & Datta, S. Use of negative capacitance to provide voltage amplification for low power nanoscale devices. Nano Lett. 8, 405–410 (2008). This paper proposed the use of NDC to realize low-power devices.
Alam, M. A., Si, M. & Ye, P. D. A critical review of recent progress of negative capacitance field-effect transistors. Appl. Phys. Lett. 114, 090401 (2019). A review article that presents the progress of NDC FETs.
Hoffmann, M. et al. Unveiling the double-well energy landscape in a ferroelectric layer. Nature 565, 464–467 (2019). This paper reports the measurement of an S-shaped P–E relationship in HZO (11.6 nm thick) within metal/dielectric/HZO/metal structures.
Zubko, P. et al. Negative capacitance in multidomain ferroelectric superlattices. Nature 534, 524–528 (2016). This paper reports the NDC effect in multidomain epitaxial Pb0.5Sr0.5TiO3–SrTiO3 superlattices, determined by X-ray diffraction analysis and supporting simulations.
Yadav, A. K. et al. Spatially resolved steady-state negative capacitance. Nature 565, 468–471 (2019). This paper reports the NDC effect in multidomain epitaxial SrTiO3–PbTiO3 superlattices by scanning transmission electron microscopy analysis and supporting simulations.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
This is a summary of: Jo, S. et al. Negative differential capacitance in ultrathin ferroelectric hafnia. Nat. Electron. https://doi.org/10.1038/s41928-023-00959-3 (2023).
Rights and permissions
About this article
Cite this article
Validating negative differential capacitance for advanced low-power devices. Nat Electron 6, 335–336 (2023). https://doi.org/10.1038/s41928-023-00961-9
Published:
Issue Date:
DOI: https://doi.org/10.1038/s41928-023-00961-9
