Numéro |
J. Phys. IV France
Volume 04, Numéro C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique |
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Page(s) | C7-271 - C7-274 | |
DOI | https://doi.org/10.1051/jp4:1994764 |
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-271-C7-274
DOI: 10.1051/jp4:1994764
Laboratorium voor Akoestiek en Warmtegeleiding, Departement Natuurkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
© EDP Sciences 1994
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-271-C7-274
DOI: 10.1051/jp4:1994764
Thermal and magnetic properties of gadolinium by acoustic detection of optically and magnetically induced temperature oscillations
C. Glorieux and J. ThoenLaboratorium voor Akoestiek en Warmtegeleiding, Departement Natuurkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
Abstract
Periodically intensity modulated optical excitation and magnetical heat dissipation has been used to produce temperature oscillations in three gadolinium samples with differences in the quality of crystallinity. Depending on the circumstances the acoustically detected temperature signal can contain information on specific heat capacity, thermal conductivity or magnetic susceptibility of the material. We have investigated the magnetic field and temperature dependence of these physical properties in the neighbourhood of the critical point (T=Tc and B=0).
© EDP Sciences 1994