Nuclear magnetic resonance study for high temperature superconductivity under high pressure

2019 Fiscal Year Final Research Report

• Project/Area Number: 16H04013
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Osaka University
• Principal Investigator: Mukuda Hidekazu 大阪大学, 基礎工学研究科, 准教授 (90323633)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Keywords: 核磁気共鳴 / 超伝導

Outline of Final Research Achievements

Among the various high temperature superconducting materials, we have studied the several unidentified high temperature superconducting phases under extreme conditions by nuclear magnetic resonance (NMR) techniques. We also developed the nuclear magnetic resonance techniques for the very small crystals under high pressure. We have reported them in academic journals(11) and the international/domestic conferences(78).

Free Research Field

超伝導

Academic Significance and Societal Importance of the Research Achievements

これまで知られる典型的な高温超伝導体である銅酸化物や鉄系物質では超高圧などの極端条件下で大きな超伝導転移温度の上昇が起こり、超高圧下の水素化物では突如新奇高温超伝導相が現れる。これら高温超伝導現象がなぜ起こるのか、現在その問題に迫ることのできる実験手法は限られるが、これら一連の物質系での極端条件下も含めた新奇な高温超伝導相の多様性および普遍性の探究は、今後より高い超伝導転移温度を持つ物質開発につながると期待される。