Physics of Topological Crystals and Nano-crystal engineering

2015 Fiscal Year Final Research Report

• Project/Area Number: 24540392
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: Akita University
• Principal Investigator: Hayashi Masahiko 秋田大学, 教育文化学部, 教授 (60301040)
• Co-Investigator(Kenkyū-buntansha): KUBOKI Kazuhiro 神戸大学, 理学(系)研究科, 准教授 (50231296) ; EBISAWA Hiromichi 東北大学, 情報科学研究科, 名誉教授 (90005439)
• Co-Investigator(Renkei-kenkyūsha): TANDA Satoshi 北海道大学, 大学院工学研究科, 教授 (80217215)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 電荷密度波 / 高温超伝導 / トポロジカル結晶

Outline of Final Research Achievements

In order to clarify the crystal structures and novel physical properties of topological crystals, such as moebius-strip crystals, we have constructed theoretical frameworks to treat various mesoscopic phenomena, and also investigated physics in the systems where topology and geometry are important. Especially, we developed a new time-dependent Ginzeburg-Landau equations, in order to study the charge density wave dynamics in topological crystals, taking into account the interplay between microscopic quasi-particles and macroscopic condensate. We also studied the fluctuations and surface effects of the cuprate high-Tc superconductors at mesoscopic scales, based on phenomenological and microscopic treatment of the t-J model.

Free Research Field

物性理論