SYSTEMS AND METHODS FOR AUTOMATED TIP CONDITIONING FOR SCANNING TUNNELING SPECTROSCOPY
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United States of America Patent
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Issued Date -
Jun 22, 2023
app pub date -
Dec 19, 2022
filing date -
Dec 20, 2021
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Abstract
A scanning tunneling microscope including a z-axis scanning assembly; a quantum tunneling tip operatively connected to the z-axis scanning assembly; a z-axis controller configured to communicate with the z-axis scanning assembly; an x-y scanning assembly including a sample platform for holding a sample to be observed and arranged proximate the quantum tunneling tip separated in a z-axis direction from the platform; an x-y controller configured to communicate with the x-y scanning assembly; a measurement circuit connected to the quantum tunneling tip and the sample platform such that a relative electrical voltage is provided between said quantum tunneling tip and the sample platform and so as to measure an electrical current; and a data processor configured to communicate with the z-axis controller and the x-y controller to receive surface imaging information or point spectral information therefrom.
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