Jacques Richard

Institut Néel

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Olivier Bourgeois

Centre National de la Recherche Scientifique

Jean‐Luc Garden

Institut Néel

Dimitri Tainoff

Centre National de la Recherche Scientifique

Hervé Guillou

Université Grenoble Alpes

R. Kofman

Harvard University Press

P. Cheyssac

Université Côte d'Azur

A. Sikora

ALPhANOV (France)

Hossein Ftouni

Institut Néel

David Eon

Centre National de la Recherche Scientifique

F. Omnès

Centre National de la Recherche Scientifique

Cooperative Institutions

Centre National de la Recherche Scientifique

Université Grenoble Alpes

Institut Néel

Université Joseph Fourier

Institut polytechnique de Grenoble

Commissariat à l'Énergie Atomique et aux Énergies Alternatives

CEA Grenoble

Laboratoire de Tribologie et Dynamique des Systèmes

Université Claude Bernard Lyon 1

Institut Nanosciences et Cryogénie

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Specific heat measurement of thin suspended SiN membrane from 8 K to 300 K using the 3ω-Völklein method

Review of Scientific Instruments (2013)

Hossein Ftouni Dimitri Tainoff Jacques Richard Kunal Lulla Jean Guidi

We present a specific heat measurement technique adapted to thin or very thin suspended membranes from low temperature (8 K) to 300 K. The presented device allows the measurement of the heat capacity of a 70 ng silicon nitride membrane (50 or 100 nm thick), corresponding to a heat capacity of 1.4 × 10(-10) J/K at 8 K and 5.1 × 10(-8) J/K at 300 K. Measurements are performed using the 3ω method coupled to the Völklein geometry. This configuration allows the measurement of both specific heat and thermal conductivity within the same experiment. A transducer (heater/thermometer) is used to create an oscillation of the heat flux on the membrane; the voltage oscillation appearing at the third harmonic which contains the thermal information is measured using a Wheatstone bridge set-up. The heat capacity measurement is performed by measuring the variation of the 3ω voltage over a wide frequency range and by fitting the experimental data using a thermal model adapted to the heat transfer across the membrane. The experimental data are compared to a regular Debye model; the specific heat exhibits features commonly seen for glasses at low temperature.

Wheatstone bridge

Thermometer

Oscillation (cell signaling)

Thermal conductivity measurement

Atmospheric temperature range

10.1063/1.4821501

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Citations (16)

Entropy production in ac-calorimetry

Thermochimica Acta (2007)

Jean‐Luc Garden Jacques Richard

Entropy production

10.1016/j.tca.2007.05.022

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Citations (17)

Thermal conductivity measurement of suspended Si-N membranes from 10 K to 275 K using the 3ω-Völklein method

Journal of Physics Conference Series (2012)

Hossein Ftouni Christophe Blanc A. Sikora Jacques Richard Martial Defoort

recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

10.1088/1742-6596/395/1/012109

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Citations (2)

Nanostructured Ge:Mn thin film: an efficient thermoelectric material

HAL (Le Centre pour la Communication Scientifique Directe) (2014)

Yanqing Liu Dimitri Tainoff Jacques Richard M. Boukhari A. Barski

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Highly sensitive pseudo-differential ac-nanocalorimeter for the study of the glass transition

Review of Scientific Instruments (2015)

Mohcine Laarraj Rahma Adhiri Saïd Ouaskit Mohamed Moussetad C. Guttin

We present a nanocalorimeter designed for the measurement of the dynamic heat capacity of thin films. The microfabricated sensor, the thermal conditioning of the sensor, as well as the highly stable and low noise electronic chain allow measurements of the real and imaginary parts of the complex specific heat with a resolution Δ C/C of about 10−5. The performances of this quasi-differential nanocalorimeter were tested on a model of polymeric glass-former, the polyvinyl acetate (PVAc). The high stability and low noise of the device are essential for accurate studies on non-equilibrium slow relaxing systems such as glasses.

Polyvinyl acetate

Thermal Stability

Differential thermal analysis

10.1063/1.4935491

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Citations (3)

Thermal conductivity of silicon nitride membranes is not sensitive to stress

Physical Review B (2015)

Hossein Ftouni Christophe Blanc Dimitri Tainoff Andrew Fefferman Martial Defoort

We have measured the thermal properties of suspended membranes from 10 K to 300 K for two amplitudes of internal stress (about 0.1 GPa and 1 GPa) and for two different thicknesses (50 nm and 100 nm). The use of the original 3 \omega -Volklein method has allowed the extraction of both the specific heat and the thermal conductivity of each SiN membrane over a wide temperature range. The mechanical properties of the same substrates have been measured at helium temperatures using nanomechanical techniques. Our measurements show that the thermal transport in freestanding SiN membranes is not affected by the presence of internal stress. Consistently, mechanical dissipation is also unaffected even though Qs increase with increasing tensile stress. We thus demonstrate that the theory developed by Wu and Yu [Phys. Rev. B 84, 174109 (2011)] does not apply to this amorphous material in this stress range. On the other hand, our results can be viewed as a natural consequence of the "dissipation dilution" argument [Y. L. Huang and P. R. Saulson, Rev. Sci. Instrum. 69, 544 (1998)] which has been introduced in the context of mechanical damping.

10.1103/physrevb.92.125439

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Citations (78)

Thermodynamics of small systems by nanocalorimetry: from physical to biological nano-objects.

HAL (Le Centre pour la Communication Scientifique Directe) (2009)

Jean‐Luc Garden Hervé Guillou A. F. Lopeandía Jacques Richard Jean-Savin Heron

Membrane based nanocalorimeters have been developed for ac calorimetry experiments. It has allowed highly sensitive measurements of heat capacity from solid state physics to complex systems like polymers and proteins. In this article we review what has been developed in ac calorimetry toward the measurement of very small systems. Firstly, at low temperature ac calorimetry using silicon membrane permits the measurement of superconducting sample having geometry down to the nanometer scale. New phase transitions have been found in these nanosystems illustrated by heat capacity jumps versus the applied magnetic field. Secondly, a sensor based on ultra-thin polymer membrane will be presented. It has been devoted to thermal measurements of nanomagnetic systems at intermediate temperature (20K to 300K). Thirdly, three specific polyimide membrane based sensors have been designed for room temperature measurements. One is devoted to phase transitions detection in polymer, the second one to protein folding/unfolding studies and the third one will be used for the study of heat release in living cells. The possibility of measuring systems out of equilibrium will be emphasized.

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Sensitive 3-omega measurements on epitaxial thermoelectric thin films

IOP Conference Series Materials Science and Engineering (2014)

Y Q Liu Dimitri Tainoff M. Boukhari Jacques Richard A. Barski

Here we present a work on the development of a sensitive 3-omega instrumentation adapted for the measurement of the thermal conductivity of epitaxial thin films. The experimental setup has been validated by the measurements on an epitaxial germanium nanostructured thin film. This manganese doped germanium matrix contains Ge3Mn5 nanoinclusions having a diameter of 5 to 50 nm, grown by Molecular Beam Epitaxy (MBE). The 3 omega measurements have revealed that the thermal conductivity of GeMn nanostructured thin films can be decreased by a factor of ten as compared to the bulk value.

10.1088/1757-899x/68/1/012005

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Citations (7)

Matériaux carbonés pour les transducteurs et les capteurs micro et nanothermiques

A. Sikora Florence Garrelie A.-S. Loir Jacques Richard David Eon

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Electroreflectance of silver

Il Nuovo cimento della Società italiana di fisica. B/Il Nuovo cimento B (1972)

B. Garrigos E. Kofman Aurélie Jolivet Jacques Richard

10.1007/bf02743518

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Citations (4)