Delayed Core-Level Photoemission from the van der Waals Crystal WSe2

• DOI: 10.1364/up.2014.10.thu.b.3
• Publication Date: 2014-07-11T15:47:36Z
• Authors: F. Merschjohann; S. Neb; P. Bartz; M. Hensen; C. Strüber; S. Fiechter; N. Müller; W. Pfeiffer; U. Heinzmann
• Keywords: 0301 basic medicine; 03 medical and health sciences

Attosecond time-resolved XUV streaking experiments are reported for cleaved WSe2 surfaces. The photoemission from Se 3d and W 4f core levels occurs delayed by 50 as with respect to the valence band emission.