High-resolution scanning tunneling microscope and its adaptation for local thermopower measurements in 2D materials

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

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

Resumen

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 Bi2Te3. Our system offers a tool to investigate the relationship between electronic structure and thermoelectric properties at the nanoscale.

Idioma originalInglés estadounidense
Número de artículo113963
PublicaciónUltramicroscopy
Volumen261
DOI
EstadoPublicada - jul. 2024

Áreas temáticas de ASJC Scopus

  • Materiales electrónicos, ópticos y magnéticos
  • Óptica y física atómica y molecular
  • Instrumental

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