论文标题
有机狄拉克电子系统中磁阻的普遍行为
Universal Behavior of Magnetoresistance in Organic Dirac Electron Systems
论文作者
论文摘要
有机无质量奶油电子系统(OMDES)$α$ - (bedt-ttf)$ _ 2 $ _ 2 $ i $ _3 $和$θ$ - (bedt-tttf)$ _ 2 $ _ 2 $ i $ _3 $,以及OMDES $α$ i $ i $ i $ i $ i $ i $ i $ i $ _3 $α$ - (BEDT-STF)$ _ 2 $ i $ _3 $,在静水压力下进行了研究。我们发现,在垂直于二维平面的低磁场下,平面磁场抗性的普遍行为。至于$α$ - (bedt-ttf)$ _ 2 $ i $ _3 $,使用温度,磁场及其方向的参数检查了普遍性。我们建议,即使对于$α$ - (bedt-ttf)$ _ 2 $ i $ _3 $在中等压力下,当热能超过间隙时,通用的磁性行为也是如此。
In-plane magnetoresistance for organic massless Dirac electron system (OMDES) $α$-(BEDT-TTF)$_2$I$_3$ and $θ$-(BEDT-TTF)$_2$I$_3$ in addition to possible candidates of the OMDES $α$-(BETS)$_2$I$_3$ and $α$-(BEDT-STF)$_2$I$_3$, was investigated under hydrostatic pressure. We have found the universal behavior of the in-plane magnetoresistance under a low magnetic field perpendicular to two-dimensional plane. As for $α$-(BEDT-TTF)$_2$I$_3$, the universality was examined with the parameters of temperature, magnetic field and its direction. We suggest that the universal magnetoresistance behavior is found even for the gapped state of $α$-(BEDT-TTF)$_2$I$_3$ under intermediate pressure, when the thermal energy exceeds the gap.