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Enhanced spin relaxation in an ultrathin metal film by the Rashba-type surface

We measured the magnetoconductance of bare and 3×√3-Bi/Ag-terminated ultrathin Ag(111) films by the micro-four-point probe method as a function of the applied magnetic field. 

N. Miyata et al.Phys. Rev. B 83, 195305 (2011)

The experimental curves were analyzed by introducing the results of photoemission investigation and band-structure calculations into the Hikami-Larkin-Nagaoka formula, in order to derive the 

characteristic fields of the two systems. The formation of the Rashba-type  surface alloy was found to reduce the spin-relaxation time in the ultrathin film significantly. 

Last Updated on Wednesday, 15 May 2013 09:48