Ferrobielastic hysteresis in &agr;‐quartz
作者:
Emmerich Bertagnolli,
Erwin Kittinger,
Jan Tichy´,
期刊:
Journal of Applied Physics
(AIP Available online 1979)
卷期:
Volume 50,
issue 10
页码: 6267-6271
ISSN:0021-8979
年代: 1979
DOI:10.1063/1.325765
出版商: AIP
数据来源: AIP
摘要:
The ferrobielastic behavior of &agr;‐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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