Property control by Strain engineering in Chalcogenide films

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K18237
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• Research Institution: Kyushu Institute of Technology
• Principal Investigator: Horide Tomoya 九州工業大学, 大学院工学研究院, 准教授 (70638858)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 薄膜 / ひずみ / ナノコンポジット / 超伝導 / 熱電変換

Outline of Final Research Achievements

Fabrication of FeSe superconducting films and SnSe thermoelectric films, and the strain control in the films were investigated. The c-axis oriented FeSe films and a-axis oriented SnSe films were fabricated using pulsed laser deposition. By fabricating FeSe+SrTiO3 nanocomposite films, tensile strain was introduced in the FeSe matrix. SnSe films were prepared with varying a Se content in the targets. An electrical conductivity of 0.1 S/cm at room temperature and 9.8 S/cm at 300℃ was obtained, and the electrical conductivity in the present films was slightly higher than that in the single crystal previously reported in the high temperatures.

Free Research Field

薄膜材料