Download all files (1.6 MB)

Collection

Citation

Description:

We study the effects of temperature on the properties of thermal vibrations of individual LaB6 single-crystal nanowires inside a transmission electron microscope using a method which combines high spatial resolution, high temporal resolution, and in-situ temperature control. We find that the vibrations can be accurately modeled by classical formalisms, despite the small size of the resonator. We observe a vibration frequency decrease with temperature which enables us to measure the temperature coefficient of the Young’s modulus, finding a value of α_E≅-9×10^(-5) K^(-1) over the 300-700 K temperature range. We additionally introduce a method to precisely measure the vibration amplitude, which agrees well with values predicted by the Boltzmann equipartition theorem over the entire temperature range.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: thermal vibration, nanowire, transmission electron microscopy

Date published: 2025-10-07

Publisher: AIP Publishing

Journal:

• Journal of Applied Physics (ISSN: 00218979) vol. 138 issue. 13 134301

Funding:

• Japan Society for the Promotion of Science JP24K08253
• Japan Society for the Promotion of Science JP23H04874
• Japan Society for the Promotion of Science JP22H05145

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1063/5.0288200

Related item:

Other identifier(s):

Contact agent:

Updated at: 2025-10-07 08:30:40 +0900

Published on MDR: 2025-10-07 08:17:01 +0900