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Development of eddy current microscopy for high resolution electrical conductivity imaging using atomic force microscopy
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10.1063/1.2955470
/content/aip/journal/rsi/79/7/10.1063/1.2955470
http://aip.metastore.ingenta.com/content/aip/journal/rsi/79/7/10.1063/1.2955470
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

A nonmagnetic electrical conductor placed in time-varying external magnetic field. The eddy current density decreases exponentially as a function of increasing thickness of the conductor.

Image of FIG. 2.
FIG. 2.

Schematic of eddy current imaging system.

Image of FIG. 3.
FIG. 3.

Comparison of cantilever vibration amplitudes over copper and insulator at a frequency of . The waveform on copper has been slightly shifted in time to show the waveforms separately.

Image of FIG. 4.
FIG. 4.

Eddy current force in the copper sample as a function of separation distance between the magnetic tip and the sample.

Image of FIG. 5.
FIG. 5.

Vibration spectra of the cantilever showing multiple resonance peaks.

Image of FIG. 6.
FIG. 6.

(a) Surface topography and (b) eddy current (relative electrical conductivity) images of Ti-6Al-4V sample. Scan size: . Frequency: .

Image of FIG. 7.
FIG. 7.

Images and single-scan-line response signals from carbon nanofibers in an epoxy matrix. (a) Surface topography and (b) eddy current (relative electrical conductivity). Frequency: .

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/content/aip/journal/rsi/79/7/10.1063/1.2955470
2008-07-16
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Development of eddy current microscopy for high resolution electrical conductivity imaging using atomic force microscopy
http://aip.metastore.ingenta.com/content/aip/journal/rsi/79/7/10.1063/1.2955470
10.1063/1.2955470
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