Nonequilibrium THz conductivity of Bi2Sr2CaCu2O8+δ

被引：10

作者：

Carnahan, MA

Kaindl, RA

Orenstein, J

Chemla, DS

Oh, S

Eckstein, JN

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[3] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 408卷

关键词：

THz spectroscopy; superconductivity; Bi-2212;

D O I：

10.1016/j.physc.2004.03.056

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using high-sensitivity visible-pump/THz-probe spectroscopy we investigate the dynamics of the complex optical conductivity, sigma(omega) = sigma(1)(omega) + isigma(2)(omega), in optimally-doped Bi2Sr2CaCu2O8+delta films directly after photoexcitation. The photoinduced change in the imaginary part Deltasigma(2), indicative of a reduction in the superconducting condensate density, saturates at higher laser-fluences and shows a complete destruction of the condensate. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：729 / 730

页数：2

共 11 条

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[Anonymous], 1998, Millimeter and Submillimeter Wave Spectroscopy of Solids

[2] Nonequilibrium superconductivity and quasiparticle dynamics in YBa2Cu3O7-δ -: art. no. 140502 [J].