Search and confirmation for spin nematic state in one-dimensional frustrated chain

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K17693
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics II
• Research Institution: Tohoku University (2016); The University of Tokyo (2015)
• Principal Investigator: Nawa Kazuhiro 東北大学, 多元物質科学研究所, 助教 (10723215)
• Research Collaborator: Hiroi Zenji 東京大学, 物性研究所, 教授 ; Takigawa Masashi 東京大学, 物性研究所, 教授
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 一次元フラストレート磁性体 / スピン・ネマティック秩序相 / 核磁気共鳴 / 強磁場物性

Outline of Final Research Achievements

In a one-dimensional frustrated magnet, rich quantum phases are theoretically expected such as a spin nematic state which is present below a magnetic saturation. The purpose of this research is to search and confirm the spin nematic state experimentally. We revealed that NaCuMoO4(OH) is a good candidate for the one-dimensional frustrated magnet by growing single crystalline samples and performing nuclear magnetic resonance experiments on them. In addition, a new magnetic phase near the magnetic saturation is found for the first time in the one-dimensional frustrated magnet through high-field nuclear magnetic resonance experiments. Since this phase is present only in the small magnetic field range of 24.3-24.5 T just below the magnetic saturation, it is highly likely to be related with the spin-nematic phase.

Free Research Field

磁性、核磁気共鳴