PERIODIC ENVELOPE OF COULOMB-BLOCKADE OSCILLATIONS IN THE QUANTUM HALL REGIME

被引:52
作者
STARING, AAM [1 ]
ALPHENAAR, BW [1 ]
VANHOUTEN, H [1 ]
MOLENKAMP, LW [1 ]
BUYK, OJA [1 ]
MABESOONE, MAA [1 ]
FOXON, CT [1 ]
机构
[1] PHILIPS RES LABS,REDHILL RH1 5HA,SURREY,ENGLAND
来源
PHYSICAL REVIEW B | 1992年 / 46卷 / 19期
关键词
D O I
10.1103/PhysRevB.46.12869
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The irregular envelope of Coulomb-blockade oscillations in the conductance of a quantum dot as a function of gate voltage is observed to change into a periodic modulation in quantizing magnetic fields. The period corresponds to depopulation of each of the Landau levels in the dot by a single electron, with tunneling occurring predominantly through a single edge state of the outermost Landau level. Magnetoconductance data are consistent with this interpretation, which implies that the energy spectrum has an unexpected regularity.
引用
收藏
页码:12869 / 12872
页数:4
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