TY - RPRT TI - Adatom vibrations on Si(111) reconstructed surfaces. AU - W Daum AU - H Ibach AU - JE Müller PY - 1987 DO - 10.1103/physrevlett.59.1593 UR - https://pubmed.ncbi.nlm.nih.gov/10035276/ ID - 10035276 ER -