Electrically induced conducting nanochannels in an amorphous resistive switching niobium oxide film
- Electrically induced conducting nanochannels in an amorphous resistive switching niobium oxide film
- 정규호; 김용민; 정웅; 임현식; 박배호; 홍진표; 이지영; 박종구; 이전국
- nano-channel; Niobium oxide; resistive swithcing; electrically induced conducting; focused ion beam
- Issue Date
- Applied physics letters
- VOL 97, NO 23, 233509-1-233509-3
- Metallic nanostructures that act as electrical switches between bistable resistance states are created
electrically in an insulating amorphous niobium oxide thin film. The physical formation of the
metallic nanostructures are probed using in situ focused ion beam scanning electron microscopy
equipped with a current-voltage measurement system. While the electroforming process changes the
film, dramatically inducing metallic nanochannels across it, significant changes in the film do not
occur during repeated resistance switching afterward. A qualitative resistive switching model is
proposed taking into account the gradual forming process.
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