Nonequilibrium THz conductivity of Bi2Sr2CaCu 2O 8+δ

M. A. Carnahan; R. A. Kaindl; J. Orenstein; D. S. Chemla; S. Oh; J. N. Eckstein

doi:10.1016/j.physc.2004.03.056

Nonequilibrium THz conductivity of Bi₂Sr₂CaCu ₂O _8+δ

M. A. Carnahan, R. A. Kaindl, J. Orenstein, D. S. Chemla, S. Oh, J. N. Eckstein

Research output: Contribution to journal › Conference article › peer-review

Abstract

Using high-sensitivity visible-pump/THz-probe spectroscopy we investigate the dynamics of the complex optical conductivity, σ(ω)= σ₁(ω)+iσ₂(ω), in optimally-doped Bi₂Sr₂CaCu₂O_8+δ films directly after photoexcitation. The photoinduced change in the imaginary part Δσ₂, indicative of a reduction in the superconducting condensate density, saturates at higher laser-fluences and shows a complete destruction of the condensate.

Original language	English (US)
Pages (from-to)	729-730
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	408-410
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physc.2004.03.056
State	Published - Aug 2004
Event	Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil Duration: May 25 2003 → May 30 2003

Keywords

Bi-2212
Superconductivity
THz spectroscopy

ASJC Scopus subject areas

Condensed Matter Physics

Online availability

10.1016/j.physc.2004.03.056

Library availability

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Cite this

@article{df93d0fd49ab42d38cc93801b9a7cff2,

title = "Nonequilibrium THz conductivity of Bi2Sr2CaCu 2O 8+δ",

abstract = "Using high-sensitivity visible-pump/THz-probe spectroscopy we investigate the dynamics of the complex optical conductivity, σ(ω)= σ1(ω)+iσ2(ω), in optimally-doped Bi2Sr2CaCu2O8+δ films directly after photoexcitation. The photoinduced change in the imaginary part Δσ2, indicative of a reduction in the superconducting condensate density, saturates at higher laser-fluences and shows a complete destruction of the condensate.",

keywords = "Bi-2212, Superconductivity, THz spectroscopy",

author = "Carnahan, {M. A.} and Kaindl, {R. A.} and J. Orenstein and Chemla, {D. S.} and S. Oh and Eckstein, {J. N.}",

year = "2004",

month = aug,

doi = "10.1016/j.physc.2004.03.056",

language = "English (US)",

volume = "408-410",

pages = "729--730",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "1-4",

note = "Proceedings of the International Conference on Materials ; Conference date: 25-05-2003 Through 30-05-2003",

}

TY - JOUR

T1 - Nonequilibrium THz conductivity of Bi2Sr2CaCu 2O 8+δ

AU - Carnahan, M. A.

AU - Kaindl, R. A.

AU - Orenstein, J.

AU - Chemla, D. S.

AU - Oh, S.

AU - Eckstein, J. N.

PY - 2004/8

Y1 - 2004/8

N2 - Using high-sensitivity visible-pump/THz-probe spectroscopy we investigate the dynamics of the complex optical conductivity, σ(ω)= σ1(ω)+iσ2(ω), in optimally-doped Bi2Sr2CaCu2O8+δ films directly after photoexcitation. The photoinduced change in the imaginary part Δσ2, indicative of a reduction in the superconducting condensate density, saturates at higher laser-fluences and shows a complete destruction of the condensate.

AB - Using high-sensitivity visible-pump/THz-probe spectroscopy we investigate the dynamics of the complex optical conductivity, σ(ω)= σ1(ω)+iσ2(ω), in optimally-doped Bi2Sr2CaCu2O8+δ films directly after photoexcitation. The photoinduced change in the imaginary part Δσ2, indicative of a reduction in the superconducting condensate density, saturates at higher laser-fluences and shows a complete destruction of the condensate.

KW - Bi-2212

KW - Superconductivity

KW - THz spectroscopy

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VL - 408-410

SP - 729

EP - 730

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

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