Research of the nonlinear conduction and hidden metastable state of organic conductor beta-type DMeET salt

研究了低温下处于棋盘型电荷有序和二聚体Mott两种特殊电子态的分子导体N-（meso-DMeET）_2PF_6的电场响应。该晶体表现出较大的非线性电导和电场诱导的亚稳态。这种响应与（电场）^[3]成正比。与脉冲电场同步的拉曼光谱的测量表明，在具有中间电阻率的亚稳态中，电荷有序化被熔化。

The response of electric field has been investigated for the molecular conductorυ-(meso-DMeET) 2PF6, which is in the peculiar electronic state of both checkerboard-type charge ordering and dimer-Mott at low temperatures. The titled crystal shows the large nonlinear conduction and the electric-field induced metastable state. This response is quick in proportional to(electric field)^3. The measurement of raman spectroscopy synchronized to the pulsed electric field suggests the melting of the charge ordering in the metastable state with the intermediate resistivity.