%0 Journal Article
%T The effects of substrate temperature and oxygen pressure on the crystal strcture and transport properties of Bi2Sr2Co2Oy thermoelectric films deposited by pulsed laser deposition<br>脉冲激光沉积温度及氧压对Bi2Sr2Co2Oy热电薄膜晶体结构与电输运性能的影响
%A Wang Shu-Fang
%A Chen Shan-Shan
%A Chen Jing-Chun
%A Yan Guo-Ying
%A Qiao Xiao-Qi
%A Liu Fu-Qiang
%A Wang Jiang-Long
%A Ding Xue-Cheng
%A Fu Guang-Sheng
%A <br>王淑芳
%A 陈珊珊
%A 陈景春
%A 闫国英
%A 乔小齐
%A 刘富强
%A 王江龙
%A 丁学成
%A 傅广生
%J 物理学报
%D 2012
%I 
%X We fabricate Bi2Sr2Co2Oy films on c-Al2O3 by pulsed laser deposition and investigate the effects of substrate temperature and oxygen pressure on the crystal stucture and the transport properties of the films. The resulting single phase c-axis Bi2Sr2Co2Oy films obtained under the optimal condition have a room temperature resistivity of about 2.9 mΩ/cm and a seebeck coefficient of 110 μupV/K, leading to a larger power factor than that of the single crystal. In addition, a negative magnetroresistance of 40% at 2K and 9T is observed in the films.
%K Bi2Sr2Co2Oy thermoelectric thin films
%K transport properties
%K pulsed laser deposition<br>Bi2Sr2Co2Oy热电薄膜
%K 输运特性
%K 脉冲激光沉积
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=790A9358A1C1D6552C04A84E02CF6D90&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=B31275AF3241DB2D&sid=C89B56179F00E2C2&eid=C89B56179F00E2C2&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=18