In order to investigate the specific heat of thin films, a new ac method for measuring heat capacity of thin films is proposed in this paper, using a floating membrane as the measurement structure.

• 本文为了研究薄膜的另一个热学性质比热是否也具有尺寸效应,提出了一种用于薄膜热容测量的新方法,其相应的实验器件为一悬膜结构。