Fermi arcs vs. Fermi pockets in electron-doped perovskite iridates.

Abstract:

:We report on an angle resolved photoemission (ARPES) study of bulk electron-doped perovskite iridate, (Sr(1-x)La(x))3Ir2O7. Fermi surface pockets are observed with a total electron count in keeping with that expected from La substitution. Depending on the energy and polarization of the incident photons, these pockets show up in the form of disconnected "Fermi arcs", reminiscent of those reported recently in surface electron-doped Sr2IrO4. Our observed spectral variation is consistent with the coexistence of an electronic supermodulation with structural distortion in the system.

journal_name

Sci Rep

journal_title

Scientific reports

authors

He J,Hafiz H,Mion TR,Hogan T,Dhital C,Chen X,Lin Q,Hashimoto M,Lu DH,Zhang Y,Markiewicz RS,Bansil A,Wilson SD,He RH

doi

10.1038/srep08533

subject

Has Abstract

pub_date

2015-02-23 00:00:00

pages

8533

issn

2045-2322

pii

srep08533

journal_volume

5

pub_type

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