title: Frequency response of a thermal diode.
abstract: A thermal diode that rectifies heat current is one of the basic devices for functional heat control. Frequency response is an important feature of many electric devices, such as diodes and transistors. Frequency response measures the ability of a device to process high-frequency signals. In this paper, we systematically study the frequency response of a thermal diode model that consists of two dissimilar Frenkel-Kontorova (FK) segments. The rectification ability of this thermal diode is badly affected when the input temperatures oscillate with a frequency that exceeds a critical value. The dependence of this critical frequency on various system parameters, including system size, interface coupling strength, etc., is quantitatively calculated.
authors.affiliation: Department of Physics, Renmin University of China, Beijing 100872, People's Republic of China.
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.affiliation: Department of Physics, Renmin University of China, Beijing 100872, People's Republic of China.
authors.forename: Junpeng
authors.initials: J
authors.lastname: Wu