Metallic adhesion in atomic-size junctions.
نویسندگان
چکیده
We report high resolution simultaneous measurements of electrical conductance and force gradient between two sharp gold tips as their separation is varied from the tunneling distance to atomic-size contact. The use of atomically sharp tips minimizes van der Waals interaction, making it possible to identify the short-range metallic adhesion contribution to the total force.
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ورودعنوان ژورنال:
- Physical review letters
دوره 93 11 شماره
صفحات -
تاریخ انتشار 2004