A critical force constant of the structural phase transition in quartz
نویسندگان
چکیده
منابع مشابه
A Critical Force Constant of the Structural Phase Transition in Quartz
Long wavelength optical phonons of quartz were analyzed by a Born-Von Karman model not previously used. It was found that only one force constant associated with the turning of the Si-0 bonds has a critical effect on the softmode frequency and the a-p transition in quartz. The square of the soft-mode frequency was found to depend linearly on this force constant which has the temperature depende...
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ژورنال
عنوان ژورنال: Physics Letters A
سال: 1973
ISSN: 0375-9601
DOI: 10.1016/0375-9601(73)90745-7