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Mercyhurst University

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Scanning-probe Single-electron Capacitance Spectroscopy
Kathleen A. Walsh 1, Megan E. Romanowich 1, Morewell Gasseller 1,2, Irma Kuljanishvili 1,3, Raymond Ashoori 4, Stuart Tessmer 1
1Department of Physics and Astronomy, Michigan State University, 2Department of Chemistry & Biochemistry/Physics, Mercyhurst University, 3Department of Physics, Saint Louis University, 4Department of Physics, Massachusetts Institute of Technology

Scanning-probe single-electron capacitance spectroscopy facilitates the study of single-electron motion in localized subsurface regions. A sensitive charge-detection circuit is incorporated into a cryogenic scanning probe microscope to investigate small systems of dopant atoms beneath the surface of semiconductor samples.

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