Observation of quantum wire formation at intersecting quantum wells

Journal Article

We report the first observation of a quantum bound state formed at the junction of two intersecting quantum wells in the shape of a T. The atomically precise T junctions are fabricated by a novel cleaved edge overgrowth process in the AlGaAs/GaAs system. The identification of bound states with energies in excess of 20 meV is made by optical emission and absorption spectroscopy. Such quantum wire states are caused by the unique confinement of the lowest state wave function to the region of the T junction.

Full Text

Duke Authors

Cited Authors

  • Goñi, AR; Pfeiffer, LN; West, KW; Pinczuk, A; Baranger, HU; Stormer, HL

Published Date

  • December 1, 1992

Published In

Volume / Issue

  • 61 / 16

Start / End Page

  • 1956 - 1958

International Standard Serial Number (ISSN)

  • 0003-6951

Digital Object Identifier (DOI)

  • 10.1063/1.108375

Citation Source

  • Scopus