Jose D. Bermúdez-Perez , Edwin Herrera-Vasco , Javier Casas-Salgado , Hector A. Castelblanco , Karen Vega-Bustos , Gabriel Cardenas-Chirivi , Oscar L. Herrera-Sandoval , Hermann Suderow , Paula Giraldo-Gallo , Jose Augusto Galvis
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High-resolution scanning tunneling microscope and its adaptation for local thermopower measurements in 2D materials
We present the design, fabrication and discuss the performance of a new combined high-resolution Scanning Tunneling and Thermopower Microscope (STM/SThEM). We also describe the development of the electronic control, the user interface, the vacuum system, and arrangements to reduce acoustical noise and vibrations. We demonstrate the microscope’s performance with atomic-resolution topographic images of highly oriented pyrolytic graphite (HOPG) and local thermopower measurements in the semimetal . Our system offers a tool to investigate the relationship between electronic structure and thermoelectric properties at the nanoscale.
期刊介绍:
Ultramicroscopy is an established journal that provides a forum for the publication of original research papers, invited reviews and rapid communications. The scope of Ultramicroscopy is to describe advances in instrumentation, methods and theory related to all modes of microscopical imaging, diffraction and spectroscopy in the life and physical sciences.