作者
SV Chernov, K Medjanik, C Tusche, D Kutnyakhov, SA Nepijko, A Oelsner, J Braun, J Minár, S Borek, H Ebert, HJ Elmers, J Kirschner, G Schönhense
发表日期
2015/12/1
期刊
Ultramicroscopy
卷号
159
页码范围
453-463
出版商
North-Holland
简介
The electronic surface states on Mo (110) have been investigated using time-of-flight momentum microscopy with synchrotron radiation (hν= 35 eV). This novel angle-resolved photoemission approach yields a simultaneous acquisition of the E-vs-k spectral function in the full surface Brillouin zone and several eV energy interval.(k x, k y, E B)-maps with 3.4 Å− 1 diameter reveal a rich structure of d-like surface resonances in the spin–orbit induced partial band gap. Calculations using the one-step model in its density matrix formulation predict an anomalous state with Dirac-like signature and Rashba spin texture crossing the bandgap at Γ¯ and E B= 1.2 eV. The experiment shows that the linear dispersion persists away from the Γ¯-point in an extended energy-and k∥-range. Analogously to a similar state previously found on W (110) the dispersion is linear along H¯− Γ¯− H¯ and almost zero along N¯− Γ¯− N¯. The …
引用总数
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