Abstract
Resistive switching in transition metal oxides is believed to be controlled by the migration of oxygen vacancies and many interesting device structures employ substoichiometric oxide layers as a source of these active defects. However, the growth of thin (~10 nm) oxide/suboxide heterostructures (e.g. HfO2/HfOx or Ta2O5/TaOx) is difficult using conventional film deposition techniques. In this study, ionimplantation is shown to provide an alternative means of synthesizing such structures, with results reported for Ta2O5/TaO x heterostructures fabricated by oxygen-implantation of Ta. The electrical properties of the fabricated heterostructures are discussed with reference to the physical structure of the samples determined from transmission electron microscopy and X-ray photoelectron spectroscopy.
Original language | English |
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Pages (from-to) | 98-101 |
Number of pages | 4 |
Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
Volume | 307 |
DOIs | |
Publication status | Published - 2013 |