Development of a probe method of measuring thermal conductivity by using ac heat current under multi-extreme condition

Research Project

Project/Area Number	15K13517
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Multi-year Fund
Research Field	Condensed matter physics II
Research Institution	Tokyo Institute of Technology
Principal Investigator	Izawa Koichi 東京工業大学, 理学院, 教授 (90302637)
Research Collaborator	FUKUCHI KOHEI
Project Period (FY)	2015-04-01 – 2017-03-31
Project Status	Completed (Fiscal Year 2016)
Budget Amount *help	¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000) Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000) Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords	熱伝導率 / 交流法 / 高圧
Outline of Final Research Achievements	In this study, we investigated an experimental method which allows us to measure thermal conductivity under multi-extreme condition. We employed so-called three-omega method instead of the conventional steady-state method. We developed a system involving Ge0.82Au0.18 thin-film as a thermometer/heater and succeeded to detect very tiny thermal response from the sample at low temperatures. Moreover, we demonstrated that the ability of our system/method to measure thermal conductivity even under pressure.

Report

(3 results)