Pai, W.W.W.W.PaiPeng, Y.H.Y.H.PengChung, W.F.W.F.ChungWang, S.Y.S.Y.WangChen, K.N.K.N.ChenCheng, H.H.H.H.Cheng2020-04-222020-04-22200102729172https://www.scopus.com/inward/record.uri?eid=2-s2.0-0035558511&partnerID=40&md5=4ffba305f168efd3dba2ffc0029075a5https://scholars.lib.ntu.edu.tw/handle/123456789/485374Unusual surface undulations observed in Ge/Si(100) multilayersconference paper