A Mechanism of DC-AC Conversion in the Organic Thyristor

Materials

Tomohiro Suko¹  Ichiro Terasaki¹  Hatsumi Mori² 

[1] Department of Applied Physics, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan; E-Mail:;The Institute for Solid State PhysicsThe University of Tokyo5-1-5KashiwanohaKashiwa 277-8581Japan; E-Mail:

关键词: organic conductor;    charge order;    nonlinear conduction;    current oscillation;   

DOI  :  10.3390/ma3032027

来源: mdpi

【 摘 要 】

The charge ordered organic salt θ-(BEDT-TTF)₂CsZn(SCN)₄ exhibits a giant nonlinear conduction at low temperatures. The voltage-current characteristics of this compound are similar to those of a thyristor device, after which we named it the organic thyristor. This material shows current oscillation in the presense of dc voltage, which arises from a mechanism different from conventional oscillating circuits, because the oscillation appears in a sample that does not show negative derivative resistance. We have performed a standard circuit analysis, and show that the voltage-current curve is “blurred” in the high current region, and the oscillation occurs in the blurred region. This type of oscillation has never been reported, and a possible origin for this is suggested.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.