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

doi:10.1103/PhysRevLett.101.067405

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

Research output: Contribution to journal › Article › peer-review

22 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 language	English
Article number	067405
Pages (from-to)	1-4
Number of pages	4
Journal	Physical Review Letters
Volume	101
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.101.067405
Publication status	Published - 8 Aug 2008
Externally published	Yes

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10.1103/PhysRevLett.101.067405

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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.",

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AU - Alén, B.

AU - Fuster, D.

AU - Muñoz-Matutano, G.

AU - Martínez-Pastor, J.

AU - González, Y.

AU - Canet-Ferrer, J.

AU - González, L.

PY - 2008/8/8

Y1 - 2008/8/8

N2 - 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.

AB - 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.

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JO - Physical Review Letters

JF - Physical Review Letters

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ER -

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

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