Chen, Y.-H.Y.-H.ChenWen, Y.-C.Y.-C.WenLiu, W.-R.W.-R.LiuHsieh, W.-F.W.-F.HsiehCHI-KUANG SUN2018-09-102018-09-102011http://www.scopus.com/inward/record.url?eid=2-s2.0-79953323889&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/364831Acoustic velocity and optical index birefringence in a-plane ZnO thin filmsjournal article