EDGE-MAGNETOPLASMA EXCITATIONS IN GAAS-ALXGA1-XAS QUANTUM WIRES

被引：11

作者：

GRODNENSKY, I ^{[1
]}

HEITMANN, D ^{[1
]}

VONKLITZING, K ^{[1
]}

PLOOG, K ^{[1
]}

RUDENKO, A ^{[1
]}

KAMAEV, A ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST RADIOENGN & ELECTR,MOSCOW 103907,RUSSIA

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.49.10778

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the experimental observation of strongly localized edge collective excitations propagating around each individual wire in a modulation-doped GaAs-AlxGa1-xAs quantum-wire array. The excitations have been observed in radio-frequency experiments at magnetic fields in the vicinities of the filling factors nu=2 and 4. For other magnetic-field strengths or with rising temperature the high-finesse edge wave transforms abruptly into a very different type of excitation, i.e., into a strongly damped relaxation mode distributed all over the wire.

引用

页码：10778 / 10781

页数：4

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