Numéro |
J. Phys. Radium
Volume 18, Numéro 11, novembre 1957
|
|
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Page(s) | 629 - 631 | |
DOI | https://doi.org/10.1051/jphysrad:019570018011062900 |
J. Phys. Radium 18, 629-631 (1957)
DOI: 10.1051/jphysrad:019570018011062900
Laboratoire de Physique Théorique, Collège de France, Paris
5110 - Kinetic and transport theory of gases.
Key words
dielectric properties -- ferroelectric materials -- minerals
DOI: 10.1051/jphysrad:019570018011062900
Étude optique et diélectrique de la boracite
Yves Le CorreLaboratoire de Physique Théorique, Collège de France, Paris
Abstract
Boracite, Mg3B7013Cl,
seems to be a ferroelectric : its domains are sensitive to the
application of an electric field ; the dielectric constant shows
a sudden discontinuity at 265°C; the hysteresis cycle is
visible, just below the transition.
The impurities of the mineral may explain the observed
weak remanent polarization (0,002 µC/cm 2).
5110 - Kinetic and transport theory of gases.
Key words
dielectric properties -- ferroelectric materials -- minerals