Topological refraction in dual-band valley sonic crystals

• المؤلفون الرئيسيون: Jia, Ding, Ge, Yong, Xue, Haoran, Yuan, Shou-qi, Sun, Hong-xiang, Yang, Yihao, Liu, Xiao-jun, Zhang, Baile
• مؤلفون آخرون: School of Physical and Mathematical Sciences
• التنسيق: مقال
• اللغة: English
• منشور في: 2021
• الموضوعات: Science::Physics; Acoustic Wave Phenomena; Acoustics
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/151103
• المؤسسة: Nanyang Technological University

Valley pseudospins, as quantum states of energy extrema in momentum space, have been introduced from condensed-matter systems into classical sound systems, and several valley sonic crystals (VSCs) have been realized experimentally. However, in the existing VSCs, topological kink states generally app...