Asymmetric spin-orbit interaction and anomalous Galvanomagnetic effect in chiral magnets of 4f-electron system
| Project/Area Number |
26400333
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Nagoya Institute of Technology |
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Principal Investigator |
Ohara Shigeo 名古屋工業大学, 工学(系)研究科(研究院), 教授 (60262953)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | キラル磁性 / ハニカム磁性 / 擬カゴメ構造 / スピン軌道相互作用 / フェルミ面分裂 / 電流磁気効果 / 中性子散乱 / キラル磁性体 / 希土類金属間化合物 / DM相互作用 / dHvA効果 / 希土類化合物 / 反対称スピン軌道相互作用 / RKKY相互作用 / キラル結晶 |
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| Outline of Final Research Achievements |
In this study, we measured and compared the magnitude of Fermi surface splitting caused by the spin-orbit interaction for chiral compounds YbNi_3_Al_9_, YbNi_3_Ga_9_, LuNi_3_Al_9_, and LuNi_3_Ga_9_. We also measured the magnetization, magnetoresistance, magnetic structure, and constructed the magnetic phase diagram for the chiral-helical magnet YbNi_3_Al_9_, the collinear antiferromagnet DyNi_3_Ga_9_ and Ising antiferromagnet ErNi_3_Ga_9_, and investigated the relation between magnetic structure and magnetoresistance.
In addition, we have grown new compounds of honeycomb-magnet R_2_Pt_6_Ga_15_ and pseudo-kagome system RRhPb (R : rare-earth ion) and measured fundamental magnetic properties using single crystals.
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Report
(4 results)
Research Products
(62 results)
