Exciton gas compression and metallic condensation in a single semiconductor quantum wire

B. Alén*, D. Fuster, G. Muñoz-Matutano, J. Martínez-Pastor, Y. González, J. Canet-Ferrer, L. González

*Corresponding author for this work

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19 Citations (Scopus)

Abstract

We study the metal-insulator transition in individual self-assembled quantum wires and report optical evidence of metallic liquid condensation at low temperatures. First, we observe that the temperature and power dependence of the single nanowire photoluminescence follow the evolution expected for an electron-hole liquid in one dimension. Second, we find novel spectral features that suggest that in this situation the expanding liquid condensate compresses the exciton gas in real space. Finally, we estimate the critical density and critical temperature of the phase transition diagram at nc∼1×105cm-1 and Tc∼35K, respectively.

Original languageEnglish
Article number067405
Pages (from-to)1-4
Number of pages4
JournalPhysical Review Letters
Volume101
Issue number6
DOIs
Publication statusPublished - 8 Aug 2008
Externally publishedYes

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    Alén, B., Fuster, D., Muñoz-Matutano, G., Martínez-Pastor, J., González, Y., Canet-Ferrer, J., & González, L. (2008). Exciton gas compression and metallic condensation in a single semiconductor quantum wire. Physical Review Letters, 101(6), 1-4. [067405]. https://doi.org/10.1103/PhysRevLett.101.067405