高分辨率扫描隧道显微镜及其在二维材料局部热功率测量中的应用

IF 2.1 3区工程技术 Q2 MICROSCOPY

Ultramicroscopy Pub Date : 2024-04-09 DOI:10.1016/j.ultramic.2024.113963

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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引用次数: 0

摘要

我们介绍了新型组合式高分辨率扫描隧道显微镜和热动力显微镜（STM/SThEM）的设计、制造和性能讨论。我们还介绍了电子控制、用户界面、真空系统的开发，以及减少声学噪音和振动的安排。我们通过高取向热解石墨 (HOPG) 的原子分辨率形貌图像和半金属 Bi2Te3 的局部热功率测量，展示了显微镜的性能。我们的系统为研究纳米尺度电子结构与热电特性之间的关系提供了一种工具。

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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 ${Bi}_{2} {Te}_{3}$ . Our system offers a tool to investigate the relationship between electronic structure and thermoelectric properties at the nanoscale.

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来源期刊

Ultramicroscopy 工程技术-显微镜技术

CiteScore

4.60

自引率

13.60%

发文量

117

审稿时长

5.3 months

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.