论文标题
单体Mott绝缘子（Bedt-TTF）Cu [n（cn）$ _ 2 $] $ _ 2 $作为潜在的节点线系统
A Monomer Mott Insulator (BEDT-TTF)Cu[N(CN)$_2$]$_2$ as a Potential Nodal Line System
论文作者
论文摘要
我们报告了频带结构计算以及在旋转1/2（bedt-ttf）$^{\ bullet +} $单体莫特绝缘子（bedt-ttf）cu [n（cn）$ _ 2 $ _ 2 $ _ 2 $ 2 $中的频带结构计算和电阻率和磁化易感性的实验结果。频段计算表明在费米级别具有淋巴结线的狄拉克半学状态。用单体莫特绝缘状态而不是预期的半准状态来很好地解释了电阻率和磁敏感性，这可能是由于较强的电子相关性。此外，我们发现arrhenius型的顺磁易感性急剧降低出现在大约25 K以下，这表明旋转单调的基态。
We report the band structure calculations and the experimental results of resistivity and magnetic susceptibility in a spin-1/2 (BEDT-TTF)$^{\bullet +}$ monomer Mott insulator (BEDT-TTF)Cu[N(CN)$_2$]$_2$. The band calculations indicate a Dirac semimetal state with nodal lines at the Fermi level. The resistivity and the magnetic susceptibility as functions of temperature are well interpreted in terms of the monomer Mott insulating state instead of the expected semimetal state probably owing to strong electron correlation. In addition, we find that an Arrhenius-type steep reduction of the paramagnetic susceptibility appears below approximately 25 K, which indicates a spin-singlet ground state.
