Number of the records: 1
Characterization of the mechanical properties of qPlus sensors
- 1.
SYSNO ASEP 0391768 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Characterization of the mechanical properties of qPlus sensors Author(s) Berger, Jan (FZU-D) RID
Švec, Martin (FZU-D) RID, ORCID
Müller, Martin (FZU-D) RID, ORCID
Ledinský, Martin (FZU-D) RID, ORCID, SAI
Fejfar, Antonín (FZU-D) RID, ORCID, SAI
Jelínek, Pavel (FZU-D) RID, ORCID
Majzik, Zsolt (FZU-D)Source Title Beilstein Journal of Nanotechnology. - : Beilstein - Institut zur Foerderung der Chemischen Wissenschaften - ISSN 2190-4286
Roč. 4, JAN (2013), s. 1-9Number of pages 9 s. Language eng - English Country DE - Germany Keywords qPlus ; nc-AFM ; tunning fork ; STM Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GAP204/10/0952 GA ČR - Czech Science Foundation (CSF) IAA100100905 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) LM2011026 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) 7E10061 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) FR-TI2/736 GA MPO - Ministry of Industry and Trade (MPO) Institutional support FZU-D - RVO:68378271 UT WOS 000313008200001 DOI 10.3762/bjnano.4.1 Annotation n this paper we present a comparison of three different methods that can be used for estimating the stiffness of qPlus sensors. The first method is based on continuum theory of elasticity. The second (Cleveland's method) uses the change in the eigenfrequency that is induced by the loading of small masses. Finally, the stiffness is obtained by analysis of the thermal noise spectrum. We show that all three methods give very similar results. Surprisingly, neither the gold wire nor the gluing give rise to significant changes of the stiffness in the case of our home-built sensors. Furthermore we describe a fast and cost-effective way to perform Cleveland's method. This method is based on gluing small pieces of a tungsten wire; the mass is obtained from the volume of the wire, which is measured by optical microscopy. To facilitate detection of oscillation eigenfrequencies under ambient conditions, we designed and built a device for testing qPlus sensors. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2014
Number of the records: 1