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Umklapp scattering at reconstructed quantum Hall edges
被引:3
|作者:
Zülicke, U
MacDonald, AH
机构:
[1] Univ Karlsruhe, Inst Theoret Festkorperphys, D-76128 Karlsruhe, Germany
[2] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA
来源:
基金:
美国国家科学基金会;
关键词:
quantum Hall effect;
edge reconstruction;
Umklapp scattering;
D O I:
10.1016/S1386-9477(99)00069-7
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
We study the low-lying excitations of a quantum Hall sample that has undergone edge reconstruction such that there exist three branches of chiral edge excitations. Among the interaction processes that involve electrons close to the three Fermi points is a new type of Umklapp-scattering process which has not been discussed before. Using bosonization and a refermionization technique, we obtain exact results for electronic correlation functions and discuss the effect Umklapp scattering has on the Luttinger-liquid properties of quantum Hall edges. (C) 2000 Elsevier Science B.V. All rights reserved.
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页码:104 / 107
页数:4
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