Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 84, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4817582
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Funding
- German-Russian Project RUS [09/036]
- BMBF-i (Germany)
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A lock-in technique for measurement of thermal conductivity and volumetric heat capacity of thin films is presented. The technique is based on the 3 omega approach using electrical generation and detection of oscillatory heat along a thin metal strip. Thin films are deposited onto the backside of commercial silicon nitride membranes, forming a bilayer geometry with distinct thermal parameters. Stepwise comparison to an adapted heat diffusion model delivers these parameters for both layers. Highest sensitivity is found for metallic thin films. (C) 2013 AIP Publishing LLC.
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