Local density of states and scattering matrix in quasi-one-dimensional systems

被引：29
|
作者：
Souma, S
Suzuki, A
机构：
[1] Tokyo Univ Sci, Fac Sci, Ctr Solid State Phys, Shinjuku Ku, Tokyo 1628601, Japan
[2] Tokyo Univ Sci, Fac Sci, Dept Phys, Shinjuku Ku, Tokyo 1628601, Japan
来源：
PHYSICAL REVIEW B | 2002年 / 65卷 / 11期
关键词：
D O I：
10.1103/PhysRevB.65.115307
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Mathematical relations between the local density of states (LDOS) and the scattering matrix (i.e., transmission and reflection amplitudes) for quasi-one-dimensional systems are derived in the presence of static uniform magnetic fields. Starting from the definition of the LDOS expressed by the Green's function, we derive the formulas for the LDOS in terms of the functional derivative of the scattering matrix or the Friedel phase with respect to a scattering potential.
引用
收藏
页码：1153071 / 1153077
页数：7
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