Acoustic surface-guided modes in phononic crystals Zhaojian He, Shasha Peng, Manzhu Ke, Jing Shi, Ke Deng, Heping Zhao, Zhengyou Liu, Weijia Wen and Ping Sheng EPL, 104 3 (2013) 34005 Published online: 03 December 2013 DOI: 10.1209/0295-5075/104/34005