A quantum size effect due to the electron transport over nanobridges made from 40-nm-thick polycrystalline Bi films with an average grain size equal to the nanobridge length is discovered and investigated experimentally. It consists in the oscillations of resistivity as a function of nanobridge width. It is found that the magnitude of oscillations is proportional to h/2e 2 and their period is 50 nm. These imply a mean de Broglie wavelength of 100 nm for conduction electrons.
Russian Microelectronics – Springer Journals
Published: Oct 11, 2004
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