Giant spin rotation under quasiparticle-photoelectron conversion: Joint effect of sublattice interference and spin-orbit coupling
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- E241409
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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.
Originalsprog | Engelsk |
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Artikelnummer | 241409(R) |
Tidsskrift | Physical Review B Condensed Matter |
Vol/bind | 80 |
Antal sider | 4 |
ISSN | 0163-1829 |
DOI | |
Status | Udgivet - 1 jan. 2009 |
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