Title: | Time-dependent universal conductance fluctuations in IrO2 nanowires |
Authors: | Lin, Yong-Han Wang, Lu-Yao Lin, Juhn-Jong 電子物理學系 物理研究所 Department of Electrophysics Institute of Physics |
Keywords: | Quantum-interference effect;Universal conductance fluctuation;Mobile defect;Iridium dioxide nanowire;Rutile structure |
Issue Date: | 13-Dec-2012 |
Abstract: | Single-crystalline iridium dioxide nanowires show the time-dependent universal conductance fluctuations (TUCFs) at cryogenic temperatures. The conductance fluctuations persist up to temperature T as high as nearly 10 K. The root-mean-square TUCF magnitudes increase with decreasing T, reaching approximately 0.1 e (2) / h at 1.7 K. We ascribe these conductance fluctuations to originating from the conduction electrons scattering upon mobile defects (moving scattering centers). Our measured TUCF characteristics are satisfactorily explained in terms of the existing TUCF theory in its three-dimensional form. The extracted electron dephasing length L (phi) (1.7 K) a parts per thousand integral 90 nm is smaller than the diameter (a parts per thousand 180 nm) of our nanowires. |
URI: | http://dx.doi.org/10.1186/1556-276X-7-673 http://hdl.handle.net/11536/21299 |
ISSN: | 1931-7573 |
DOI: | 10.1186/1556-276X-7-673 |
Journal: | NANOSCALE RESEARCH LETTERS |
Volume: | 7 |
Issue: | |
End Page: | |
Appears in Collections: | Articles |
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