title: Conjunction of standing wave and resonance in asymmetric nanowires: a mechanism for thermal rectification and remote energy accumulation.
abstract: As an important way to control and manage heat transport, thermal rectification has become an elementary issue in the field of phononics and plays a key role in the designing of thermal devices. Here we investigate systematically the standing wave and the accompanying resonance process in asymmetric nanowires to understand the standing wave itself and its great effect on thermal rectification. Results show that the standing wave is sensitive to both the structural and thermal properties of the material, and its great effect on enhancing the thermal rectification is realized not only by the energy-localization nature of the standing wave, but also by the resonance-caused large amplitude and high energy of the standing wave.
authors.affiliation: Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, China.
authors.forename: Yue-Yang
authors.initials: YY
authors.lastname: Liu
authors.affiliation: Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, China.
authors.forename: Wu-Xing
authors.initials: WX
authors.lastname: Zhou
authors.affiliation: Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, China.
authors.forename: Ke-Qiu
authors.initials: KQ
authors.lastname: Chen