%0 Journal Article
%T Form of Scaling Function in Quantum Hall Plateau Transitions
%A TU Tao
%A ZHAO Yong-Jie GUO Guo-Ping
%A HAO Xiao-Jie
%A GUO Guang-Can
%A <br>涂涛
%A 赵勇杰
%A 郭国平
%A 郝晓杰
%A 郭光灿
%J 中国物理快报
%D 2007
%I 
%X We have measured the temperature dependence of the resistance Rxx and Rxy of a two-dimensional electron system in the regime of the quantum Hall plateau transition. We observe for our sample a considerable large critical exponent κ～ 0.66 - 0.77, which may be due to the dominant electron-phonon scattering. Further we find a simple exponential form of Rxx = Rc exp（-s） in agreement with the theoretically proposed universal scaling function.
%K 73
%K 43
%K -f
%K 73
%K 43
%K Nq
%K 71
%K 30
%K +h<br>量子论
%K 能量跃迁
%K 温度
%K 临界指数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=03664AC44D480818B4F5064691BE93B8&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=94C357A881DFC066&sid=6733A846E5AFAE2E&eid=9C959CAF55D6B1C2&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0