Published December 16, 2013 | Version v1
Journal article Metadata-only

The electron-phonon relaxation time in thin superconducting titanium nitride films

Creators

  • 1. Moscow Institute of Physics and Technology (State University), Dolgoprudny 141700 (Russian Federation)
  • 2. Physics Department, Moscow State Pedagogical University, Moscow 119991 (Russian Federation)
  • 3. School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA (United Kingdom)
  • 4. National Research Centre, "Kurchatov Institute," Moscow 123128 (Russian Federation)
  • 5. Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft (Netherlands)
  • 6. National Research University Higher School of Economics, Moscow 101000 (Russian Federation)

Description

We report on the direct measurement of the electron-phonon relaxation time, τeph, in disordered TiN films. Measured values of τeph are from 5.5 ns to 88 ns in the 4.2 to 1.7 K temperature range and consistent with a T−3 temperature dependence. The electronic density of states at the Fermi level N0 is estimated from measured material parameters. The presented results confirm that thin TiN films are promising candidate-materials for ultrasensitive superconducting detectors

Additional details

Identifiers

DOI
10.1063/1.4851235;
arXiv
arXiv:1312.5966v1;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
103
Journal Issue
25
Journal Page Range
p. 252602-252602.4
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45074906
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ELECTRONS; FERMI LEVEL; FILMS; PHONONS; RELAXATION TIME; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE; TITANIUM; TITANIUM NITRIDES
Descriptors DEC
ELEMENTARY PARTICLES; ELEMENTS; ENERGY LEVELS; FERMIONS; LEPTONS; METALS; NITRIDES; NITROGEN COMPOUNDS; PNICTIDES; QUASI PARTICLES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Notes
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