Laterally defined freely suspended quantum dots in GaAs/AlGaAs heterostructures
Laterally defined freely suspended quantum dots in GaAs/AlGaAs heterostructures
复制标题
GaAs/AlGaAs 异质结构中横向定义的自由悬浮量子点
DOI:
10.1088/0957-4484/19/16/165201
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发表时间:
2008
期刊:
影响因子:
3.5
通讯作者:
S. Ludwig
中科院分区:
文献类型:
--
作者:
C. Rossler;M. Bichler;D. Schuh;W. Wegscheider;S. Ludwig
Free-standing beams containing a two-dimensional electron system are shaped from a GaAs/AlGaAs heterostructure. Quantum point contacts and (double) quantum dots are laterally defined using metal top gates. We investigate the electronic properties of these nanostructures by transport spectroscopy. Tunable localized electron states in freely suspended nanostructures are a promising tool to investigate the electron–phonon interaction.