Thermodynamic study of multilayer Dirac electron system
| Project/Area Number |
21740247
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 分子性固体 / 有機導体 / ディラック電子系 / 圧力 / 比熱測定 / 有機伝導体 / 比熱 |
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| Research Abstract |
We have measured the specific heat of the organic conductor α-(BEDT-TTF)_2I_3 under pressure where the massless Dirac fermion system with linear energy dispersion is realized. In low temperature, the specific heat shows almost ∝T^2 dependence, and shows the peak and saturation in magnetic field. These behaviors are well understood by assuming the linear dispersion and N=0 Landau level characteristic of the Dirac fermion system. The results are also quite consistent with the reported magnetoresistance.
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Report
(3 results)
Research Products
(13 results)
