Theory of inelastic scattering from magnetic impurities -: art. no. 107204

被引：67
|
作者：
Zaránd, G
Borda, L
von Delft, J
Andrei, N
机构：
[1] Budapest Univ Technol & Econ, Dept Theoret Phys, H-1521 Budapest, Hungary
[2] LMU Munchen, Sekt Phys, D-80333 Munich, Germany
[3] LMU Munchen, Ctr Nanosci, D-80333 Munich, Germany
[4] Rutgers State Univ, Ctr Mat Theory, Piscataway, NJ 08855 USA
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 10期
基金：
匈牙利科学研究基金会;
关键词：
D O I：
10.1103/PhysRevLett.93.107204
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We use the numerical renormalization group method to calculate the single-particle matrix elements T of the many-body T matrix of the conduction electrons scattered by a magnetic impurity at T=0 temperature. Since T determines both the total and the elastic, spin-diagonal scattering cross sections, we are able to compute the full energy, spin, and magnetic field dependence of the inelastic scattering cross section sigma(inel)(omega). We find an almost linear frequency dependence of sigma(inel)(omega) below the Kondo temperature T(K), which crosses over to a omega(2) behavior only at extremely low energies. Our method can be generalized to other quantum impurity models.
引用
收藏
页码：107204 / 1
页数：4
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