Nonequilibrium superconductivity in Y1-xPrxBa2Cu3O7 thin films

R. D. Averitt; V. K. Thorsmølle; Q. X. Jia; S. A. Trugman; A. J. Taylor

doi:10.1016/S0921-4526(01)01166-8

Nonequilibrium superconductivity in Y_1-xPr_xBa₂Cu₃O₇ thin films

R. D. Averitt
, V. K. Thorsmølle
, Q. X. Jia
, S. A. Trugman
, A. J. Taylor

Department of Materials Design and Innovation

Los Alamos National Laboratory

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

12 Scopus citations

Abstract

We have measured the picosecond conductivity dynamics in Y_1-xPr_xBa₂Cu₃O₇ thin films from 0.3-2.0 THz. Our experimental technique measures the complex conductivity σ_re(ω) + iσ_im(ω) permitting the simultaneous observation of superconducting pair and quasiparticle dynamics. We emphasize aspects of the conductivity dynamics which extend our previous results (Phys. Rev. B 63 (2001) 140502(R)). In particular, the recovery of σ_re is faster than σ_im, and the recovery of σ_im decreases with increasing frequency. This suggests another carrier relaxation pathway, in addition to superconducting pair recovery, following optical excitation.

Original language	English
Pages (from-to)	86-87
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	312-313
DOIs	https://doi.org/10.1016/S0921-4526(01)01166-8
State	Published - Mar 2002
Event	International Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States Duration: Aug 6 2002 → Aug 6 2002

Keywords

Superconductivity
Terahertz
Ultrafast

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10.1016/S0921-4526(01)01166-8

Cite this

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title = "Nonequilibrium superconductivity in Y1-xPrxBa2Cu3O7 thin films",

abstract = "We have measured the picosecond conductivity dynamics in Y1-xPrxBa2Cu3O7 thin films from 0.3-2.0 THz. Our experimental technique measures the complex conductivity σre(ω) + iσim(ω) permitting the simultaneous observation of superconducting pair and quasiparticle dynamics. We emphasize aspects of the conductivity dynamics which extend our previous results (Phys. Rev. B 63 (2001) 140502(R)). In particular, the recovery of σre is faster than σim, and the recovery of σim decreases with increasing frequency. This suggests another carrier relaxation pathway, in addition to superconducting pair recovery, following optical excitation.",

keywords = "Superconductivity, Terahertz, Ultrafast",

author = "Averitt, \{R. D.\} and Thorsm{\o}lle, \{V. K.\} and Jia, \{Q. X.\} and Trugman, \{S. A.\} and Taylor, \{A. J.\}",

year = "2002",

month = mar,

doi = "10.1016/S0921-4526(01)01166-8",

language = "English",

volume = "312-313",

pages = "86--87",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

note = "International Conference on Strongly Correlated Electrons ; Conference date: 06-08-2002 Through 06-08-2002",

}

TY - JOUR

T1 - Nonequilibrium superconductivity in Y1-xPrxBa2Cu3O7 thin films

AU - Averitt, R. D.

AU - Thorsmølle, V. K.

AU - Jia, Q. X.

AU - Trugman, S. A.

AU - Taylor, A. J.

PY - 2002/3

Y1 - 2002/3

N2 - We have measured the picosecond conductivity dynamics in Y1-xPrxBa2Cu3O7 thin films from 0.3-2.0 THz. Our experimental technique measures the complex conductivity σre(ω) + iσim(ω) permitting the simultaneous observation of superconducting pair and quasiparticle dynamics. We emphasize aspects of the conductivity dynamics which extend our previous results (Phys. Rev. B 63 (2001) 140502(R)). In particular, the recovery of σre is faster than σim, and the recovery of σim decreases with increasing frequency. This suggests another carrier relaxation pathway, in addition to superconducting pair recovery, following optical excitation.

AB - We have measured the picosecond conductivity dynamics in Y1-xPrxBa2Cu3O7 thin films from 0.3-2.0 THz. Our experimental technique measures the complex conductivity σre(ω) + iσim(ω) permitting the simultaneous observation of superconducting pair and quasiparticle dynamics. We emphasize aspects of the conductivity dynamics which extend our previous results (Phys. Rev. B 63 (2001) 140502(R)). In particular, the recovery of σre is faster than σim, and the recovery of σim decreases with increasing frequency. This suggests another carrier relaxation pathway, in addition to superconducting pair recovery, following optical excitation.

KW - Superconductivity

KW - Terahertz

KW - Ultrafast

UR - https://www.scopus.com/pages/publications/0036504306

U2 - 10.1016/S0921-4526(01)01166-8

DO - 10.1016/S0921-4526(01)01166-8

M3 - Conference article

AN - SCOPUS:0036504306

SN - 0921-4526

VL - 312-313

SP - 86

EP - 87

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - International Conference on Strongly Correlated Electrons

Y2 - 6 August 2002 through 6 August 2002

ER -

Nonequilibrium superconductivity in Y_1-xPr_xBa₂Cu₃O₇ thin films

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Keywords

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