A first-principle assessment at atomistic scale of interface phenomena in down-scaling hafnium-based metal-insulator-metal diodes

  • Emiliano Laudadio
  • , Martino Aldrigo
  • , Pierluigi Stipa
  • , Luca Pierantoni
  • , Davide Mencarelli
  • , Mircea Dragoman
  • , Mircea Modreanu

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

In this paper, we present first-principle calculations to study the electrical properties of hafnium oxide (HfO2)-based metal-insulator-metal (MIM) diodes. These devices have been simulated by interposing 3 nm of HfO2 between drain and source contacts made of gold and platinum, respectively. The monoclinic and orthorhombic polymorphs of HfO2 have been considered to model different MIM diodes, and the interface geometries have been optimized to compute the I-V characteristics. The simulation results demonstrate the influence of the HfO2 polymorphs on the MIM properties and the importance to understand the interface phenomena that are related to the measurable properties of the proposed devices.

Original languageEnglish
Title of host publication2022 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization, NEMO 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665486330
DOIs
Publication statusPublished - 2022
Event2022 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization, NEMO 2022 - Limoges, France
Duration: 6 Jul 20228 Jul 2022

Publication series

Name2022 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization, NEMO 2022

Conference

Conference2022 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization, NEMO 2022
Country/TerritoryFrance
CityLimoges
Period6/07/228/07/22

Keywords

  • DFT
  • diodes
  • ferroelectric materials
  • hafnium compounds
  • I-V characteristics
  • interface
  • optimization

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