%0 Journal Article
%T Direct current hopping conductance in one-dimensional diagonal disordered systems
%A Ma Song-Shan
%A Xu Hui
%A Liu Xiao-Liang
%A Xiao Jian-Rong
%A <br>马松山
%A 徐 慧
%A 刘小良
%A 肖剑荣
%J 中国物理 B
%D 2006
%I 
%X Based on a tight-binding disordered model describing a single electron band, we establish a direct current (dc) electronic hopping transport conductance model of one-dimensional diagonal disordered systems, and also derive a dc conductance formula. By calculating the dc conductivity, the relationships between electric field and conductivity and between temperature and conductivity are analysed, and the role played by the degree of disorder in electronic transport is studied. The results indicate the conductivity of systems decreasing with the increase of the degree of disorder, characteristics of negative differential dependence of resistance on temperature at low temperatures in diagonal disordered systems, and the conductivity of systems decreasing with the increase of electric field, featuring the non-Ohm's law conductivity.
%K direct current hopping conductivity
%K diagonal disordered systems
%K the degree of disorder<br>电导
%K 一维对角线混乱
%K 电子带
%K 电子输运
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=1CEB9111A0579BF84DDA46E0184B53A2&yid=37904DC365DD7266&vid=23CCDDCD68FFCC2F&iid=CA4FD0336C81A37A&sid=6235172E4DDBA109&eid=5D9D6A8FC2C66FD8&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=19