Charge order competition leading to nonlinearity in organic thyristor family

Charge order competition leading to nonlinearity in organic thyristor family
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电荷顺序竞争导致有机晶闸管系列非线性

DOI：
10.1143/jpsj.79.044606
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发表时间：
2010
期刊：
J. Phys. Soc. Jpn.
影响因子：
--
通讯作者：
H. Mori and T. Mori
H. Mori and T. Mori
中科院分区：
--
文献类型：
--
作者：
Y. Nogami;N. Hanasaki;M. Watanabe;K. Yamamoto;T. Ito;N. Ikeda;H. Ohsumi;H. Toyokawa;Y. Noda;I. Terasaki;H. Mori and T. Mori

文献摘要

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有机晶闸管族化合物θ-(BEDT-TTf)2RbZn(SCN)4的同步辐射和输运测量表明，在三角形晶格中，二重和3×4电荷有序之间存在微观竞争磁区。与传统的关联电子体系不同，电荷有序化是相竞争的唯一关键参数。在外加电流作用下，只有二重有序才会熔化，这是产生非线性响应的原因。
Simultaneous synchrotron radiation and transport measurements for the organic thyristor family compound θ-(BEDT-TTF)2RbZn(SCN)4have revealed the presence of microscopic competing domains between the twofold and 3 ×4 charge orderings in a triangular lattice. In contrast to conventional correlated electron systems, charge ordering is a unique critical parameter of phase competition. With external current, only the twofold ordering melts, which is responsible for the emergence of a nonlinear response.