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- Florian Johann
- University of Bonn Institute of Physics, , Wegelerstraße 8, 53115 Bonn, Germany
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- Elisabeth Soergel
- University of Bonn Institute of Physics, , Wegelerstraße 8, 53115 Bonn, Germany
この論文をさがす
説明
<jats:p>We present a method of measuring the charge density on dielectric surfaces. Similar to electrostatic force microscopy we record the electrostatic interaction between the probe and the sample surface, but at large tip-sample distances. For calibration we use a pyroelectric sample which allows us to alter the surface charge density by a known amount via a controlled temperature change. For proof of principle, we determined the surface charge density under ambient conditions of ferroelectric lithium niobate.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 95 (23), 232906-, 2009-12-07
AIP Publishing