%0 Journal Article %T METAL-INSULATOR TRANSITION IN YBa2Cu3O7-x
YBa2Cu3O7-x的金属-绝缘体转变 %A YANG YONG-HONG %A XING DING-YU %A GONG CHANG-DE %A
杨永宏 %A 邢定钰 %A 龚昌德 %J 物理学报 %D 1992 %I %X On the basis of the scalinp: theory of locallzation, we introduce an effective dimensionality for layered structure systems, which depends on the conductivity anisotropy or the interlayer coupling. We propose that both decrease of conductance and drop in effective dimensionality account for the metal-insulator transitions in YBa2Cu3O7-x and other oxide compounds. The scaling theory in finite temperatures is also discussed to explain the temperature dependence of the normal state resistivities. %K 高Tc %K 超导体 %K 绝缘体 %K 转变 %K 有效维度 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=1150A4EB01A57B37731603BB228D0AA3&yid=F53A2717BDB04D52&vid=2001E0D53B7B80EC&iid=CA4FD0336C81A37A&sid=58F693790F887B3B&eid=475189FCB44F11F6&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=9