FERROBIELASTIC HYSTERESIS IN ALPHA-QUARTZ

被引:12
作者
BERTAGNOLLI, E
KITTINGER, E
TICHY, J
机构
[1] Institut für Experimentalphysik, Universitaet Innsbruck, A-6020 Innsbruck
关键词
D O I
10.1063/1.325765
中图分类号
O59 [应用物理学];
学科分类号
摘要
The ferrobielastic behavior of α-quartz crystals under compressive stress has been investigated making use of the piezoelectric and piezo-optic effects. The direction of mechanical stress was so chosen that secondary twinning is favored. Above a threshold of approximately 0.5 GPa, ferrobielastic switching results in a complete orientation reversal. Unexpectedly the mere removal of the mechanical constraint leads to a complete restoration of the original orientation. This retrotransition occurs between 0.1 and 0.025 GPa. This effect is discussed in terms of a simple thermodynamical model.
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页码:6267 / 6271
页数:5
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