Variable-temperature photoacoustic effect: Application to phase transition
- 15 September 1979
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 35 (6) , 435-437
- https://doi.org/10.1063/1.91162
Abstract
A low‐temperature‐adapted photoacoustic cell using an electret microphone and a MOSFET preamplifier is described. This cell can operate between 5 and 300 K in a gas‐flow cryostat. By way of illustration, it is used here to perform a new kind of photoacoustic measurement, i.e., to study the specific‐heat anomaly of various insulators in the neighborhood of magnetic phase transitions.Keywords
This publication has 7 references indexed in Scilit:
- Photoacoustic detection of phase transitionsPhysica Status Solidi (a), 1978
- Dichroism measurements in photoacoustic spectroscopyApplied Physics Letters, 1978
- Experimental observation of crossover phenomena in the specific heat of MnF2Journal of Physics C: Solid State Physics, 1978
- Radiationless relaxation in solids as measured by a heat-pulse techniqueThe Journal of Chemical Physics, 1977
- Theory of the photoacoustic effect with solidsJournal of Applied Physics, 1976
- Measurement and interpretation of magnetic circular dichroism and magnetic linear dichroism spectraSymposia of the Faraday Society, 1969
- Heat Capacities of CrF3 and CrCl3 from 15 to 300°KThe Journal of Chemical Physics, 1958