Specific Heat of the Multilayered Massless Dirac Fermion System
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概要
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We have measured the specific heat of the multilayered massless Dirac fermion system \alpha-(BEDT-TTF)2I3 under pressure. The temperature dependence of the specific heat is almost quadratic at low temperature, suggesting massless Dirac dispersion in this system. In a magnetic field, the specific heat shows anomalous behavior, which can be understood by assuming the zero-mode Landau level characteristic of the Dirac fermion system and its spin splitting. These results are in good agreement with the reported magnetoresistance.
- 2012-04-15
著者
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Osada Toshihito
Institute For Solid State Physics University Of Tokyo
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Uchida Kazuhito
Institute For Solid State Physics University Of Tokyo
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Konoike Takako
Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
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Uchida Kazuhito
Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
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