Cellule de mesure nanocalorimétrique par méthode alternative en parylène autosuspendu

Translated title of the contribution: Parylene self-suspended measurement cell by nanocalorimetric alternative method

Emmanuel Andre*, Aitor Lopeandia, Jean Luc Garden, Dominique Givord, Olivier Bourgeois

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

Abstract

We report the microfabrication and operation of a highly sensitive ac-calorimeter designed to characterize small mass magnetic systems operating at very low frequencies (from 0.1 to 5 Hz) in a temperature range from 20 to 300 K. The calorimetric cell is built in the center of a 500 nm thick polymeric membrane of parylene held up by a Cu frame. With these characteristics the frequency of adiabaticity is typically around few hertz and energy exchanges as small as 1pJ can be detected. Measurements have been performed on Co/Au thin films and on the GdAl 2 microcrystal where the ferromagnetic phase transition is clearly evidenced.

Translated title of the contributionParylene self-suspended measurement cell by nanocalorimetric alternative method
Original languageFrench
Pages (from-to)89-106
Number of pages18
JournalInstrumentation Mesure Metrologie
Volume11
Issue number3-4
DOIs
Publication statusPublished - 2011

Fingerprint

Dive into the research topics of 'Parylene self-suspended measurement cell by nanocalorimetric alternative method'. Together they form a unique fingerprint.

Cite this