Spatially-resolved electronic structure of stripe domains in IrTe2 through electronic structure microscopy

Abstract Phase separation in the nanometer- to micrometer-scale is characteristic for correlated materials, example, high temperature superconductors, colossal magnetoresistance manganites, Mott insulators, etc. Resolving electronic structure with spatially-resolved information critical revealing fundamental physics of such inhomogeneous systems yet this challenging experimentally. Here by using and micrometer-spot angle-resolved photoemission spectroscopies (NanoARPES MicroARPES), we reveal stripe phase IrTe 2 . Each separated domain shows two-fold symmetric mirror axis aligned along 3 equivalent directions, 6 × 1 replicas are clearly identified. Moreover, inhomogeneity disappears across transition, suggesting that broken symmetry induced modulation directly related transition Our work demonstrates capability NanoARPES MicroARPES elucidating phase-separated materials.