Disentangling surface and bulk photoemission using circularly polarized light

Abstract

We show that in the angle resolved photoemission spectroscopy (ARPES) near-surface induced fields can be useful for disentangling the surface and bulk related emission. The jump of the dielectric function at the interface results in a nonzero term $\mathrm{div}\text{A}$ in the photoemission matrix element. The term happens to be significant approximately within the first unit cell and leads to the circular dichroism for the states localized therein. As an example we use ARPES spectra of an YBa${}_2$Cu${}_3$O${}_{7-\delta }$ crystal to distinguish between the overdoped surface related component and its bulk counterparts.

4 pages, 2 figures

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Cited by in corpus (21)

• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Observation of a warped helical spin-texture in Bi${}_2$Se${}_3$ from circular dichroism angle-resolved photoemission spectroscopy
• Reversal of the circular dichroism in the angle-resolved photoemission from Bi2Te3
• Orbital Characters Determined from Fermi Surface Intensity Patterns using Angle-Resolved Photoemission Spectroscopy
• The importance of Charge Fluctuations for the Topological Phase in SmB${}_6$
• Circular dichroism in angle-resolved photoemission spectroscopy of topological insulators
• Coexistence of metallicity and superconductivity in adjacent bilayers of a high-Tc superconductor
• Dispersion of the odd magnetic resonant mode in near-optimally doped Bi2Sr2CaCu2O8+d
• Doping dependence of the chemical potential and surface electronic structure in YBa2Cu3O6+x and La2-xSrxCuO4 using hard x-ray photoemission spectroscopy
• ARPES experiment in fermiology of quasi-2D metals (Review Article)
• An ARPES view on the high-Tc problem: phonons vs spin-fluctuations
• Common Origin of the Circular-dichroism Pattern in ARPES of SrTiO3 and CuxBi2Se3
• Incommensurate magnetic fluctuations and Fermi surface topology in LiFeAs
• Pseudogap in the chain states of YBCO
• Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again
• Surface and bulk electronic structure of unconventional superconductor Sr_2RuO_4: unusual splitting of the beta-band
• Angle-resolved photoemission spectroscopy observation of anomalous electronic states in EuFe${}_2$As${}_{2-x}$P${}_x$
• Deviating band symmetries and many-body interactions in a model hole doped iron pnictide superconductor
• Tilted Dirac Fermions
• Angle-Resolved Photoelectron Spectroscopy Studies of the Many-Body Effects in the Electronic Structure of High-Tc Cuprates
• Measurements of electronic band structure in CeCoGe${}_3$ by angle-resolved photoemission spectroscopy