Nonmetallic Conduction in Thin Metal Films at Low Temperatures
- 3 September 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 43 (10), 721-724
- https://doi.org/10.1103/physrevlett.43.721
Abstract
Resistance measurements were made on high-resistivity thin-film metal strips at temperatures as low as 10 mK. Unexpected logarithmic variations of the resistance with temperature and applied electric field were observed for strips with sheet resistance below kΩ/□ and widths ≳ 1 μm. Exponential increases in resistance were observed for similar films when the film width was decreased to about 0.1 μm or when was increased to ∼ 10 kΩ/□.
Keywords
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