Thermodynamic temperature measurement by electron spectroscopy with sub-meV resolution

• Project/Area Number: 25390116
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: General applied physics
• Research Institution: Yokohama City University
• Principal Investigator: Kinoshita Ikuo 横浜市立大学, 生命ナノシステム科学研究科(八景キャンパス), 准教授 (60275021)
• Co-Investigator(Renkei-kenkyūsha): ISHII Juntaro 産業技術総合研究所, 計測標準研究部門, 研究室長 (90356428)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
• Keywords: 熱力学温度 / 光電子分光 / フェルミ・ディラック分布 / 熱力学温度計測 / 光電子分光測定 / 電子エネルギー分析器 / エネルギー分解能 / ガウス分布関数

Outline of Final Research Achievements

This research aims to develop a new technique to measure a surface-local thermodynamic temperature (absolute temperature) without contact to the object and any calibration, that is, Fermi-Dirac distribution measurement of electrons in solid surface. For the purpose of developing this temperature measurement technology, the energy distribution of electrons measured by photoelectron spectroscopy on the surface of Au (110) single crystal cooled with liquid nitrogen was fitted with Fermi-Dirac distribution in accuracy of ± 2.1 K. Successful determination of thermodynamic temperature was performed consistently with sensor temperature.

Research Products

• [Journal Article] A method for atomic-level noncontact thermometry with electron energy distribution (2017)
  • Author(s): Ikuo Kinoshita, Chiharu Tsukada, Kohei Ouchi, Eiichi Kobayashi, and Juntaro Ishii
  • Journal Title: Japanese Journal of Applied Physics Volume: 56 Issue: 4 Pages: 048004-048004
  • DOI: 10.7567/jjap.56.048004
  • NAID: 210000147541
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] A surface sensitive probe of thermodynamic temperature based on photoelectron spectroscopy (2016)
  • Author(s): Ikuo Kinoshita
  • Organizer: The 11th asian thermophysical properties conference
  • Place of Presentation: Pacifico Yokohama Annex Hall, Japan
  • Year and Date: 2016-10-02
  • Int'l Joint Research
• [Presentation] An advanced spectral fitting approach for photoelectron thermometry (2016)
  • Author(s): Ikuo Kinoshita
  • Organizer: TEMPMEKO2016
  • Place of Presentation: Zakopane, Poland
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] An Advanced Spectrral Fitting Approach for Photoelectron Thermometry (2016)
  • Author(s): Ikuo Kinoshita, Eiichi Kobayashi, Juntaro Ishii
  • Organizer: Tempmeko 2016
  • Place of Presentation: Zakopane, Poland
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Photoelectron Thermometry; Improvement of its Temperature Determination Accuracy (2013)
  • Author(s): Ikuo Kinoshita, Eiichi Kobayashi, Juntaro Ishii
  • Organizer: TEMPMEKO2013
  • Place of Presentation: Madeira, Portgal