Linear measurements of nanomechanical phenomena using small-amplitude AFM

Date

2004-01-01

Author

Hoffmann, Peter M.
Patil, Shivprasad
Matei, George
Tanulku, Atay
Grimble, Ralph
Özer, Hakan Özgür
Jeffery, Steve
Oral, Ahmet
Pethica, John

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

101
views

0
downloads

Dynamic Atomic Force Microscopy (AFM) is typically performed at amplitudes that are quite large compared to the measured interaction range. This complicates the data interpretation as measurements become highly non-linear. A new dynamic AFM technique in which ultra-small amplitudes are used (as low as 0.15 Angstrom) is able to linearize measurements of nanomechanical phenomena in ultra-high vacuum (UHV) and in liquids. Using this new technique we have measured single atom bonding, atomic-scale dissipation and molecular ordering in liquid layers, including water. © 2005 Materials Research Society.

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34249872470&origin=inward
https://hdl.handle.net/11511/94439

DOI

https://doi.org/10.1557/proc-838-o1.8

Conference Name

2004 MRS Fall Meeting

Collections

Department of Physics, Conference / Seminar

Suggestions

OpenMETU
Core

Numerical analysis, design and two port equivalent circuit models for split ring resonator arrays Yaşar Örten, Pınar; Sayan, Gönül; Department of Electrical and Electronics Engineering (2010) Split ring resonator (SRR) is a metamaterial structure which displays negative permeability values over a relatively small bandwidth around its magnetic resonance frequency. Unit SRR cells and arrays have been used in various novel applications including the design of miniaturized microwave devices and antennas. When the SRR arrays are combined with the arrays of conducting wires, left handed materials can be constructed with the unusual property of having negative valued effective refractive indices. In th...
Electromagnetic shielding effectiveness of galvanostatically synthesized conducting polypyrrole films in the 300-2000 MHz frequency range Kaynak, A (1996-07-01) Both far-field (plane wave) and near field shielding effectiveness (SE) measurements have been conducted on electrochemically synthesized conducting polypyrrole(PPy) films with wide ranging conductivity levels (10(-2) S/cm to 45 S/cm). Go-axial transmission line, TEM test cell and TE(10) waveguide techniques were employed to measure shielding effectiveness as a function of polymer conductivity, frequency and temperature. Highly doped polypyrrole films exhibited shielding levels, above 40 dB from 300 MHz to ...
Quantitative electrostatic force measurement in AFM JEFFERY, Steve; Oral, Ahmet; Pethica, John B. (2000-04-02) We describe a method for measuring forces in the atomic force microscope (AFM), in which a small amplitude oscillation(similar to 1 Angstrom(p-p)) is applied to a stiff(similar to 40 N/m) cantilever below its first resonant frequency, and the force gradient is measured directly as a function of separation. We have used this instrument to measure electrostatic forces by applying an ac voltage between the tip and the sample, and observed a variation in contact potential difference with separation. We also sho...
Experimental Realization of Induced Current Magnetic Resonance Current Density Imaging Eroglu, Hasan H.; Sadighi, Mehdi; Sumser, Kemal; Naji, Nashwan; Eyüboğlu, Behçet Murat (2015-08-29) In this paper, recently proposed Induced Current Magnetic Resonance Current Density Imaging (ICMRCDI) is experimentally realized. The reconstructed current density images from the simulated measurements and from the physical measurements are in agreement. The proposed method is promising in reconstructing images of electrical conductivity as well as images of induced current density distribution within the body.
Frequency Selective Characteristics of a Plasma Layer with Sinusoidally Varying Electron Density Profile GÜREL, ÇİĞDEM SEÇKİN; Oencue, Emrah (Springer Science and Business Media LLC, 2009-06-01) In this study reflection, absorbtion and transmission characteristics of a plasma layer having sinusoidally varying electron number density are analysed. In the analysis, plasma layer is divided into thin subslabs with constant electron number densities. The general frequency selective behavior of the plasma is investigated by varying the plasma parameters, external magnetic field excitation and sinusoidal electron distribution in order to be used in recent plasma applications.

Citation Formats

P. M. Hoffmann et al., “Linear measurements of nanomechanical phenomena using small-amplitude AFM,” Boston, MA, Amerika Birleşik Devletleri, 2004, vol. 838, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=34249872470&origin=inward.