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Characterization of quantum-weight generating cantilever device

Jae-Hyuk Choi, Kwang-Cheol Lee, Yun-Won Kim, Min-Seok Kim

Abstract

Quantum-weight generating cantilever devices comprising a 20 micron-sized ringshaped Niobium film deposited on the paddle of an ultrasoft single-crystalline silicon cantilever were characterized. High-quality niobium film was patterned by optical lithography and deposited using an ultra-high-vacuum sputter system within the microfabrication process of cantilevers, which adopts double-side reactive-ion-etching. The fabricated niobium film was observed using scanning electron microscope and atomic force microscope, and its superconducting property was also examined from lowtemperature resistivity measurement. Thermal noise spectrum and frequency scan of cantilever vibration were measured at a room temperature to obtain resonance frequencies and quality factors of the device.

Keywords
quantum-weight, ultrasoft cantilever, niobkim film
Download
IMEKO-TC3-2007-024u.pdf
DOI
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IMEKO TC
TC3 - Measurement of Force, Mass, Torque, and Gravity

Event details

Event
Cultivating Metrological Knowledge
Linked User
Dirk Röske
Technical Committee
TC3
Place
Merida, MEXICO
Time
27 November 2007 - 1 December 2007
Website
http://www.cenam.mx/fyp/imeko2.html

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