%0 Journal Article
%T Study on the thermopower and magnetic properties of Zn doped La2CuO4<br>Zn掺杂La2CuO4热电势和磁化率研究
%A Yang Hong-Shun
%A Li Cheng-Peng
%A Cai Yi-Sheng
%A Yu Min
%A Li Zhi-Quan
%A Li Ming-De
%A Cao Lie-Zhao
%A Wen Hai-Hu
%A Long Yun-Ze
%A Chen Zhao-Jia
%A <br>杨宏顺
%A 李鹏程
%A 柴一晟
%A 余旻
%A 李志权
%A 李明德
%A 曹烈兆
%A 闻海虎
%A 龙云泽
%A 陈兆甲
%J 物理学报
%D 2002
%I 
%X We report on a study of the temperature dependence of thermoelectric power and DC susceptibility of Zn doped La 2CuO 4 throngh slow cooling and slow warming after quenching (6K/h,and 0.2K/s respectively).The antiferromagnetic (AF) transition temperature T N does not change with changing cooling rates and the dc susceptibility for La 2CuO 4 is not much affected.The high temperature thermopower is weakly temperature dependent,suggesting the hopping contribution of polarons.The rather rapid linear decrease in the thermopower below T drop is attributed to the contribution of the two dimensional AF fluctuations.The spinodal in thermopower at lower temperature is confirmed to be related with the localization of the charge carriers.The T drop and T S are obviously changed by changing cooling rates while they are not affected much by Zn doping.However,the Zn doping results in a stronger localization of charge carriers.In this paper,we discuss the physical origins related to above phenomena.
%K La
%K 2CuO
%K 4
%K thermopower
%K magnetic susceptibility<br>La2CuO4
%K 直流磁化率
%K 热电势
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=97D2A16C566B2941&yid=C3ACC247184A22C1&vid=987EDA49D8A7A635&iid=9CF7A0430CBB2DFD&sid=1FD2ABFFF43897E1&eid=164E897218915EDC&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=37