Antiferroelectric negative capacitance from a structural phase transition in zirconia

Michael Hoffmann (), Zheng Wang, Nujhat Tasneem, Ahmad Zubair, Prasanna Venkatesan Ravindran, Mengkun Tian, Anthony Arthur Gaskell, Dina Triyoso, Steven Consiglio, Kandabara Tapily, Robert Clark, Jae Hur, Sai Surya Kiran Pentapati, Sung Kyu Lim, Milan Dopita, Shimeng Yu, Winston Chern, Josh Kacher, Sebastian E. Reyes-Lillo, Dimitri Antoniadis, Jayakanth Ravichandran, Stefan Slesazeck, Thomas Mikolajick and Asif Islam Khan ()
Additional contact information
Michael Hoffmann: NaMLab gGmbH
Zheng Wang: Georgia Institute of Technology
Nujhat Tasneem: Georgia Institute of Technology
Ahmad Zubair: Massachusetts Institute of Technology
Prasanna Venkatesan Ravindran: Georgia Institute of Technology
Mengkun Tian: Georgia Institute of Technology
Anthony Arthur Gaskell: Georgia Institute of Technology
Dina Triyoso: TEL Technology Center, America, LLC
Steven Consiglio: TEL Technology Center, America, LLC
Kandabara Tapily: TEL Technology Center, America, LLC
Robert Clark: TEL Technology Center, America, LLC
Jae Hur: Georgia Institute of Technology
Sai Surya Kiran Pentapati: Georgia Institute of Technology
Sung Kyu Lim: Georgia Institute of Technology
Milan Dopita: Charles University
Shimeng Yu: Georgia Institute of Technology
Winston Chern: Massachusetts Institute of Technology
Josh Kacher: Georgia Institute of Technology
Sebastian E. Reyes-Lillo: Universidad Andres Bello
Dimitri Antoniadis: Massachusetts Institute of Technology
Jayakanth Ravichandran: University of Southern California
Stefan Slesazeck: NaMLab gGmbH
Thomas Mikolajick: NaMLab gGmbH
Asif Islam Khan: Georgia Institute of Technology

Nature Communications, 2022, vol. 13, issue 1, 1-8

Abstract: Abstract Crystalline materials with broken inversion symmetry can exhibit a spontaneous electric polarization, which originates from a microscopic electric dipole moment. Long-range polar or anti-polar order of such permanent dipoles gives rise to ferroelectricity or antiferroelectricity, respectively. However, the recently discovered antiferroelectrics of fluorite structure (HfO2 and ZrO2) are different: A non-polar phase transforms into a polar phase by spontaneous inversion symmetry breaking upon the application of an electric field. Here, we show that this structural transition in antiferroelectric ZrO2 gives rise to a negative capacitance, which is promising for overcoming the fundamental limits of energy efficiency in electronics. Our findings provide insight into the thermodynamically forbidden region of the antiferroelectric transition in ZrO2 and extend the concept of negative capacitance beyond ferroelectricity. This shows that negative capacitance is a more general phenomenon than previously thought and can be expected in a much broader range of materials exhibiting structural phase transitions.

Date: 2022
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DOI: 10.1038/s41467-022-28860-1

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