1992    
1993    
1994    
1995    
1996    
1997    
1998    
1999    
2000    
2001    
2002    
2003    
2004    
2005    
2006    
2007    
2008    
2009    
2010    
2011    
2012    
2013    
2014    
2015    
2016    
Mirhosseini, H., Giebels, F., Gollisch, H., Henk, J., Feder, R.

Ab initio spin-resolved photoemission and electron pair emission from a Dirac-type surface state in W(110)
New Journal of Physics 15, (9),pp 095017/1-15 (2013)
The spin texture of a Dirac-type surface state in W(110) lends itself to study spin-dependent effects in electron spectroscopies that show up very clearly. Firstly, we report on spin-resolved photoemission calculations and separate the spin polarization that is attributed to the initial state from that induced by the photoemission process itself. This disentanglement allows one to map spin textures of spin-polarized initial states using circular dichroism, for example from Dirac surface states in topological insulators. Secondly, we demonstrate the mapping of spin-polarized states by spin-dependent twoelectron emission. Selecting highly polarized initial states, this spectroscopy can furthermore probe the spin dependence of the exchange-correlation hole.

TH-2013-30