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Автор Knoll, A
Автор Rothuizen, H
Автор Gotsmann, B
Автор Duerig, U
Дата выпуска 2010-05-07
dc.description An atomic force microscopy (AFM) technique is described combining two operating modes that previously were mutually exclusive: gentle imaging of delicate surfaces requiring slow dynamic AFM techniques, and passive feedback contact mode AFM enabling ultra-fast imaging. A high-frequency force modulation is used to excite resonant modes in the MHz range of a highly compliant cantilever force sensor with a spring constant of 0.1  N m<sup> − 1</sup>. The high-order mode acts as a stiff system for modulating the tip–sample distance and a vibration amplitude of 1 nm is sufficient to overcome the adhesion interaction. The soft cantilever provides a force-controlled support for the vibrating tip, enabling high-speed intermittent contact force microscopy without feedback control of the cantilever bending. Using this technique, we were able to image delicate polymer surfaces and to completely suppress the formation of the ripple wear patterns that are commonly observed in contact AFM.
Формат application.pdf
Издатель Institute of Physics Publishing
Копирайт IOP Publishing Ltd
Название Wear-less floating contact imaging of polymer surfaces
Тип paper
DOI 10.1088/0957-4484/21/18/185701
Electronic ISSN 1361-6528
Print ISSN 0957-4484
Журнал Nanotechnology
Том 21
Первая страница 185701
Последняя страница 185708
Аффилиация Knoll, A; IBM Research-Zurich, Saeumerstrasse 4, 8803 Rueschlikon, Switzerland
Аффилиация Rothuizen, H; IBM Research-Zurich, Saeumerstrasse 4, 8803 Rueschlikon, Switzerland
Аффилиация Gotsmann, B; IBM Research-Zurich, Saeumerstrasse 4, 8803 Rueschlikon, Switzerland
Аффилиация Duerig, U; IBM Research-Zurich, Saeumerstrasse 4, 8803 Rueschlikon, Switzerland
Выпуск 18

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