Giant Rashba-Type Spin Splitting in Ferroelectric GeTe(111).
basic_science · Level V
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- Record sourced from PubMed, PMID 26599640.
- Also identified by DOI 10.1002/adma.201503459.
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Abstract
Photoelectron spectroscopy in combination with piezoforce microscopy reveals that the helicity of Rashba bands is coupled to the nonvolatile ferroelectric polarization of GeTe(111). A novel surface Rashba band is found and fingerprints of a bulk Rashba band are identified by comparison with density functional theory calculations.