title: Adjustable thermal resistor by reversibly folding a graphene sheet.
abstract: Phononic (thermal) devices such as thermal diodes, thermal transistors, thermal logic gates, and thermal memories have been studied intensively. However, tunable thermal resistors have not been demonstrated yet. Here, we propose an instantaneously adjustable thermal resistor based on folded graphene. Through theoretical analysis and molecular dynamics simulations, we study the phonon-folding scattering effect and the dependence of thermal resistivity on the length between two folds and the overall length. Furthermore, we discuss the possibility of realizing instantaneously adjustable thermal resistors in experiment. Our studies bring new insights into designing thermal resistors and understanding the thermal modulation of 2D materials by adjusting basic structure parameters.
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. nuo@hust.edu.cn and Nano Interface Center for Energy (NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, People's Republic of China.
authors.forename: Qichen
authors.initials: Q
authors.lastname: Song
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. nuo@hust.edu.cn and Nano Interface Center for Energy (NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, People's Republic of China.
authors.forename: Meng
authors.initials: M
authors.lastname: An
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. nuo@hust.edu.cn and Nano Interface Center for Energy (NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, People's Republic of China.
authors.forename: Xiandong
authors.initials: X
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. nuo@hust.edu.cn and Nano Interface Center for Energy (NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, People's Republic of China.
authors.forename: Zhan
authors.initials: Z
authors.lastname: Peng
authors.affiliation: School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. jfzang@hust.edu.cn and Innovation Institute, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Zang
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. nuo@hust.edu.cn and Nano Interface Center for Energy (NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, People's Republic of China.
authors.forename: Nuo
authors.initials: N
authors.lastname: Yang