Metallic phase and metal-insulator transition in two-dimensional electronic systems
Metallic phase and metal-insulator transition in two-dimensional electronic systems
复制标题
二维电子系统中的金属相和金属-绝缘体转变
DOI：
10.1103/physrevb.57.r9381
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发表时间：
1998
影响因子：
3.7
通讯作者：
Patrick A. Lee
中科院分区：
文献类型：
--
作者：
Claudio Castellani;C. Castro;Patrick A. Lee
最近对金属-绝缘体二维相变的实验观察促使人们重新审视无序相互作用系统的理论。我们认为现有的理论允许金属相的存在，并提出了一些实验，如在平行场存在下的磁导和隧穿，这些实验应该为给定的实验系统是否确实处于这个区域提供诊断测试。我们还对预测最大金属电阻率的通用流程图进行了评论。
The recent experimental observation of a metal-insulator transition in two dimensions prompts a re-examination of the theory of disordered interacting systems. We argue that the existing theory permits the existence of a metallic phase and propose a number of experiments such as magnetoconductance and tunnelling in the presence of a parallel field, which should provide diagnostic tests as to whether a given experimental system is in fact in this regime. We also comment on a generic flow diagram which predicts a maximum metallic resistivity.