Abstract
We investigated lateral nanowires at the topmost layer of SrVO3 (001) ultrathin films using in situ low-temperature scanning tunneling microscopy and spectroscopy. The nanowires were spontaneously formed in the topmost layer of SrVO3 with a (2 × 2)-R45° reconstruction on the terrace of a (5 × 5)-R26.6° reconstruction. The electronic states of nanowires were significantly influenced by the nanowire width. With reducing the nanowire width from 5.5 nm to 1.7 nm, the zero-bias conductance of nanowires steeply decreased toward zero, exhibiting a metal-insulator transition possibly driven by dimensional crossover, previously observed in thickness-reduced SrVO3 ultrathin films.
Original language | English |
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Article number | 051603 |
Journal | Applied Physics Letters |
Volume | 117 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2020 Aug 3 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)