Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-06-09
Phys. Rev. B 80, 241409 (2009)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
5 pages, 4 figures, improved presentation and figures, added references
Scientific paper
10.1103/PhysRevB.80.241409
Spin- and angular-resolved photoemission spectroscopy is a basic experimental tool for unveiling spin polarization of electron eigenstates in crystals. We prove, by using spin-orbit coupled graphene as a model, that photoconversion of a quasiparticle inside a crystal into a photoelectron can be accompanied with a dramatic change in its spin polarization, up to a total spin flip. This phenomenon is typical of quasiparticles residing away from the Brillouin zone center and described by higher rank spinors, and results in exotic patterns in the angular distribution of photoelectrons.
Kuemmeth Ferdinand
Rashba Emmanuel I.
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