@Article{Beck_etal2013,
author="Beck, M.
and Rousseau, I.
and Klammer, M.
and Leiderer, P.
and Mittendorff, M.
and Winnerl, S.
and Helm, M.
and Gol{\textquoteright}tsman, G. N.
and Demsar, J.",
title="Transient increase of the energy gap of superconducting NbN thin films excited by resonant narrow-band terahertz pulses",
journal="Phys. Rev. Lett.",
year="2013",
volume="110",
number="26",
pages="267003 (1 to 5)",
optkeywords="NbN thin films; energy gap",
abstract="Observations of radiation-enhanced superconductivity have thus far been limited to a few type-I superconductors (Al, Sn) excited at frequencies between the inelastic scattering rate and the superconducting gap frequency 2Delta/h. Utilizing intense, narrow-band, picosecond, terahertz pulses, tuned to just below and above 2Delta/h of a BCS superconductor NbN, we demonstrate that the superconducting gap can be transiently increased also in a type-II dirty-limit superconductor. The effect is particularly pronounced at higher temperatures and is attributed to radiation induced nonthermal electron distribution persisting on a 100 ps time scale.",
optnote="PMID:23848912",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1370), last updated on Thu, 13 May 2021 14:45:43 -0500",
issn="0031-9007",
doi="10.1103/PhysRevLett.110.267003",
opturl="http://www.ncbi.nlm.nih.gov/pubmed/23848912",
opturl="https://doi.org/10.1103/PhysRevLett.110.267003"
}