AFE-like Hysteresis Loops from Doped HfO2: Field Induced Phase Changes and Depolarization Fields

Research output: Contribution to book/Conference proceedings/Anthology/Report › Conference contribution › Contributed › peer-review

Contributors

  • P. D. Lomenzo - , TUD Dresden University of Technology (Author)
  • C. Richter - , TUD Dresden University of Technology (Author)
  • M. Materano - , Chair of Nanoelectronics, TUD Dresden University of Technology (Author)
  • T. Mikolajick - , Chair of Nanoelectronics, TUD Dresden University of Technology (Author)
  • Uwe Schroeder - , TUD Dresden University of Technology (Author)
  • T. Schenk - , Luxembourg Institute of Science and Technology (Author)
  • D. Spirito - , Tel Aviv University (Author)
  • S. Gorfman - , Tel Aviv University (Author)

Abstract

Most pristine doped HfO2 polarization-field hysteresis loops show a pinched hysteresis and discussions are ongoing to explain this AFE-like switching behavior. Main causes discussed in literature are related to field induced phase changes, depolarization fields from non-polar phase regions in ferroelectric HfO2, and trapped charge. Structural and electrical characterization results are compared to distinguish between the different causes of AFE-like hysteresis behavior.

Details

Original languageEnglish
Title of host publicationIFCS-ISAF 2020 - Joint Conference of the IEEE International Frequency Control Symposium and IEEE International Symposium on Applications of Ferroelectrics, Proceedings
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (electronic)978-1-7281-6430-4
ISBN (print)978-1-7281-6753-4
Publication statusPublished - Jul 2020
Peer-reviewedYes

Publication series

SeriesIEEE International Symposium on Applications of Ferroelectrics (IFCS-ISAF)

Conference

Title2020 Joint Conference of the IEEE International Frequency Control Symposium (IFCS) & IEEE International Symposium on Applications of Ferroelectrics (ISAF)
Abbreviated titleIFCS-ISAF 2020
Duration19 - 23 July 2020
Degree of recognitionInternational event
LocationOnline
CityKeystone
CountryUnited States of America

External IDs

ORCID /0000-0003-3814-0378/work/142256195

Keywords

ASJC Scopus subject areas

Keywords

  • AFE-like hysteresis, depolarization field, Ferroelectric HfO2, micro-spot XRD, wake-up cycling