Transport properties of oxygen vacancy filaments in metal/crystalline or amorphous HfO <inf>2</inf>/metal structures

Xavier Cartoixà, Riccardo Rurali, Jordi Suñé

Research output: Contribution to journalArticleResearchpeer-review

58 Citations (Scopus)

Abstract

We study from first principles the transport properties of metal/monoclinic-HfO 2/metal and metal/amorphous-HfO 2/metal structures where paths built from oxygen vacancies in the hafnium oxide host are created. Using a Green's function formalism coupled with a density functional theory code, we compute the conductance of vacancy filaments of different thicknesses, showing that even the thinnest filaments can sustain conductive channels, which should display signs of conductance quantization, for both the monoclinic and amorphous phases of hafnia. © 2012 American Physical Society.
Original languageEnglish
Article number165445
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number16
DOIs
Publication statusPublished - 26 Oct 2012

Fingerprint

Dive into the research topics of 'Transport properties of oxygen vacancy filaments in metal/crystalline or amorphous HfO <inf>2</inf>/metal structures'. Together they form a unique fingerprint.

Cite this