| Project/Area Number |
22540379
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Toho University (2011-2012)
The Institute of Physical and Chemical Research (2010) |
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Principal Investigator |
TAJIMA Naoya 東邦大学, 理学部, 准教授 (40316930)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIO Yutaka 東邦大学, 理学部, 教授 (20172629)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 有機導体 / ディラック電子 / ゼロモードランダウ準位 / 多層ディラック電子系 / n=0ランダウ準位 / υ=0量子ホール状態 / 多バンドディラック電子 / 層間磁気抵抗効果 |
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| Research Abstract |
We have discovered first bulk massless Dirac fermion systems in an organic conductor α-(BEDT-TTF)_2I_3under high pressure. One of the characteristic feature is that the zero-mode Landau level always exist at the zero-energy in magnetic field. In this work, we succeeded in detecting the effects of zero-mode including its spin splitting on inter-layer transport. The most impressive findings are that the multi-band Dirac fermion systems with both Dirac particles and normal electrons are realized in Θ-(BEDT-TTF)_2I_3.
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