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Q-NET young researchers

Timothé FAIVRE

PICO group, O.V. Lounasmaa Laboratory, prev. Low Temperature Laboratory, Aalto University,
ESPOO, Finland

Male, French

faivre

Diplomas, University(ies)
puce Physics Engineering, PHELMA INPG, Grenoble May 2010, Equivalent Master degree , Advisor: Pignard Stephane
puce Master Degree, University Joseph Fourier, Grenoble May 2010, Solid states physics

puce PhD of Aalto University awarded on November 20th, 2015.

Field of research
Thermodynamics, superconductivity, tunnel junctions

Research experience
hjg Low Temperature Lab, Espoo 2010 to Present
summer student (master's degree training)

  • Topic : “Ultra fast thermometry using SINIS structure”
  • Advisor : Jukka Pekola

hjg CEA INAC, Grenoble summer 2009
summer student

  • member of SP2M, on the topic of domain wall propagation inside thin layer with perpendicular magnetization
  • Development of a new measurement scheme for magnetoresistance measurement in nanowires.
  • Advisor : Attane Jean-Philippe

Thesis Project :
"Measurements of temperature fluctuations"

The effective temperature of a nanoscale electron system defined by its Fermi distribution fluctuates according to the fluctuation-dissipation theorem.
We can probe this temperature by a spectroscopic measurement of a tunnel junction, while the system is only weakly coupled to the heat bath.
Furthermore, superconductors are a promising system for this measurement, as the interaction between the electron system and the phonons is weak.The magnitude of the fluctuations of the electronic temperature is then predicted to be more than 10 mK RMS at 100 mK bath temperature.

List of Publications
V. D. Nguyen, L. Vila, P. Laczkowski, A. Marty, T. Faivre, and J. P. Attané, Phys. Rev. Lett. 107, 136605 (2011).
[Golubev] "Heat transport through a Josephson junction", D. Golubev, T. Faivre, and J. P. Pekola, Physical Review B 87, 094522 (2013), Task 3.1.

Heat transport through a Josephson junction, D. Golubev, T. Faivre, J. P. Pekola, Physical Review B 87, 94522 (2013).

Josephson junction based thermometer and its application in bolometry, Timothé Faivre, Dmitry Golubev, Jukka P. Pekola, Journal of Applied Physics 116, 94302 (2014).

Fast electron thermometry towards ultra-sensitive calorimetric detection, S. Gasparinetti, K. L. Viisanen, O.-P. Saira, T. Faivre, M. Arzeo, M. Meschke, J. P. Pekola, Physical Review Applied 3, 14007 (2015).

Andreev Current for low temperature thermometry, T. Faivre, D. S. Golubev, J. P. Pekola, Applied Physics Letters 106, 182602 (2015).

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