Influence of Thickness and Sputtering Pressure on Electrical Resistivity and Elastic Wave Propagation in Oriented Columnar Tungsten Thin Films

Autor: Asma Chargui, Raya El Beainou, Alexis Mosset, Sébastien Euphrasie, Valérie Potin, Pascal Vairac, Nicolas Martin

Publikováno v: Nanomaterials, Vol 10, Iss 1, p 81 (2020)

Tungsten films were prepared by DC magnetron sputtering using glancing angle deposition with a constant deposition angle α = 80°. A first series of films was obtained at a constant pressure of 4.0 × 10−3 mbar with the films’ thickness increasi

Externí odkaz: https://doaj.org/article/ede7786176a54cf483d1d9b6dc1b1911

Experimental evidence of high spatial confinement of elastic energy in a phononic cantilever

Autor: Sébastien Euphrasie, Abdelkrim Khelif, Etienne Coffy, Pascal Vairac

We report on experimental high spatial confinement of elastic energy in a silicon phononic cantilever for which the quality factor of a higher-order flexural resonance is increased by a factor of 27 (from Q ∼ 80 to Q ∼ 2130) with the use of a thr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44a66d066ead10b34e670a0820d03ca0
https://hal.archives-ouvertes.fr/hal-03549394

Optimal isotropic, reusable truss lattice material with near-zero Poisson’s ratio

Autor: Jean-Marc Cote, Qingxiang Ji, Johnny Moughames, Nicolas Laforge, Muamer Kadic, Sébastien Euphrasie, Julio Andrés Iglesias Martínez, Chen Xueyan, Vincent Laude, Samia Adrar, Huifeng Tan, Gwenn Ulliac

Publikováno v: Extreme Mechanics Letters
Extreme Mechanics Letters, Elsevier, 2020, 41, pp.101048. ⟨10.1016/j.eml.2020.101048⟩

International audience; Cork is a natural amorphous material with near-zero Poisson’s ratio that is ubiquitously used for sealing glass bottles. It is an anisotropic, transversally isotropic, composite that can hardly be scaled down. Here, we propo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::736b1129c9d90e4a5309c7b93dc2fed3
https://hal.archives-ouvertes.fr/hal-03053066

Calibration Tools for Scanning Thermal Microscopy Probes Used in Temperature Measurement Mode

Autor: Severine Gomes, Etienne Lemaire, Tran Phong Nguyen, Danick Briand, Laurent Thiery, Saleem Khan, Lionel Aigouy, Pascal Vairac, Sébastien Euphrasie

Publikováno v: Journal of Heat Transfer
Journal of Heat Transfer, American Society of Mechanical Engineers, 2019, 141, pp.071601-1-9
Journal of Heat Transfer, American Society of Mechanical Engineers, 2019, 141, pp.9. ⟨10.1115/1.4043381⟩
Journal of Heat Transfer, 2019, 141, pp.9. ⟨10.1115/1.4043381⟩

International audience; We demonstrate the functionality of a new active thermal microchip dedicated to the temperature calibration of scanning thermal microscopy (SThM) probes. The silicon micromachined device consists in a suspended thin dielectric

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b525e0a46d5cf49f8271e668f1977017
http://hdl.handle.net/20.500.12278/28806

A tool for temperature calibration and comparison of Scanning Thermal Microscopy (SThM) probes

Autor: Tran Phong Nguyen, Laurent Thiery, Pascal Vairac, Sébastien Euphrasie, Etienne Lemaire, Khan, S., Danick Briand, Séverine Gomes

Publikováno v: Nanoscale and Microscale Heat Transfer VI
Nanoscale and Microscale Heat Transfer VI, Dec 2018, Levi, Lapland, Finland
HAL

International audience; A tool for temperature calibration and comparison of Scanning Thermal Microscopy (SThM) probes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e52e990b89d72420b96b66230615d9df
https://hal.archives-ouvertes.fr/hal-02371017