TY  - JOUR
AU  - Lounis, S.
AU  - Bringer, A.
AU  - Blügel, S.
TI  - Magnetic Adatom Induced Skyrmion-Like Spin Texture in Surface Electron Waves
JO  - Physical review letters
VL  - 108
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-22314
SP  - 07202
PY  - 2012
N1  - We thank Professor K. Scharnberg for stimulating discussions at the initial stage of the work, and Dr. P. Lazic and Dr. H. Schumacher for their assistance in preparing some of the figures. S. L. acknowledges the support of the HGF-YIG Programme VH-NG-717 (Functional Nanoscale Structure and Probe Simulation Laboratory, Funsilab).
AB  - When a foreign atom is placed on a surface of a metal, the surrounding sea of electrons responds by screening the additional charge leading to oscillations or ripples. On surfaces, those electrons are sometimes confined to two-dimensional surface states, whose spin-degeneracy is lifted due to the Rashba effect arising from the spin-orbit interaction of electrons and the inversion asymmetric environment. It is believed that at least for a single adatom scanning tunneling microscopy measurements are insensitive to the Rashba splitting; i.e., no signatures in the charge oscillations will be observed. Resting on scattering theory, we demonstrate that, if magnetic, one single adatom is enough to visualize the presence of the Rashba effect in terms of an induced spin magnetization of the surrounding electrons exhibiting a twisted spin texture described as superposition of two Skyrmionic waves of opposite chirality.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000304063700016
DO  - DOI:10.1103/PhysRevLett.108.207202
UR  - https://juser.fz-juelich.de/record/22314
ER  -