著者

吉澤 俊介

出版者

公益社団法人 日本表面真空学会

雑誌

表面と真空 (ISSN:24335835)

巻号頁・発行日

vol.66, no.1, pp.46-51, 2023-01-10 (Released:2023-01-10)

参考文献数

16

---

Frequent earthquakes in Japan can be problematic for vibration-sensitive measurements. For example, in scanning tunneling microscope (STM) experiments, seismic vibrations cause noises in the data and sometimes lead to a tip crash against the sample surface. The risk of tip crash rises during spectroscopic imaging measurements using STM, where the feedback control is disabled for most of the long measurement time. Here, we have developed a system to prevent tip crashes by retracting the tip in response to the earthquake early warning of the Japan Meteorological Agency. The technique utilizes a built-in function of a commercial STM controller, and an earthquake monitoring service offered by the National Research Institute for Earth Science and Disaster Prevention. We present data to demonstrate how the system works at an earthquake. Our work provides hints for conducting vibration-sensitive measurements in earthquake-prone countries.

著者

内橋 隆 吉澤 俊介

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.36, no.3, pp.112-117, 2015-03-10 (Released:2015-03-24)

参考文献数

36

---

Silicon surface reconstructions with metal adatoms are two-dimensional systems with atomic-scale thickness. We have successfully measured the superconducting transition of a representative silicon surface reconstruction Si(111)-(√7×√3)-In by electron transport measurement. In this article, we report our results together with the experimental techniques and future prospect for surface superconductors.