Visualization of nano spatial modulation structure of thallium compound by scanning probe microscope

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420278
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electronic materials/Electric materials
• Research Institution: Chiba Institute of Technology
• Principal Investigator: WAKITA Kazuki 千葉工業大学, 工学部, 教授 (80201151)
• Research Collaborator: ISHIKAWA Masato 横河電機 ; MAMEDOV Nazim アゼルバイジャン物理学研究所, 所長
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: タリウム系化合物 / ナノ空間変調構造 / 走査型プローブ顕微鏡 / コメンシュレート相 / ナノドメイン

Outline of Final Research Achievements

We proceeded with research aiming at direct observation of nano-domain of by Kelvin probe microscope.
As a research result, we have not observed nano-domains by Kelvin probe microscope measurement, but we observed an increase in surface potential difference at low temperature. We also succeeded in Raman measurement of compound semiconductors by chip enhanced Raman. Furthermore, we investigated the electronic state by low temperature measurement by angle ellipsometry of thallium compound and measurement by angle resolved photoelectron spectroscopy. We found that the band structure of thallium compounds by the first principle calculation is obtained, and energy is reduced by taking the nano modulation structure of the atoms at low temperature.

Free Research Field

多元系化合物結晶とその光物性