Specific Heat Anomaly in Solid 3He due to Vacancy Waves.

We observed the excess specific heat (anomaly) other than nuclear origins above 10 mK in bcc solid³ He of 24.21 cm³/ mole. We checked whether it arises from spin polarons due to vacancies out of equilibrium by applying a strong magnetic field, in which vacancies should diffuse and vanish due to high polarization. The specific heat is the same before and after applying a magnetic field of 10 T. This fact indicates that vacancies did not vanish even in a strong field or the anomaly arises from the origin different from vacancies. [ABSTRACT FROM AUTHOR]