Photoemission signatures of valence-bond stripes in cuprates: Long-range vs. short-range order

摘要: Abstract Recent experiments indicate that the tendency toward formation of unidirectional charge density waves (“stripes”) is common to various underdoped cuprates. We discuss momentum-resolved spectral properties valence-bond stripes, comparing situations ideal and short-range stripe order, latter being relevant for weak and/or disorder-pinned stripes. find clear signatures ordered although matrix element effects suppress most shadow band features. With decreasing correlation length, are quickly washed out, only remaining effect a broadening antinodal quasiparticles. This insensitivity photoemission order may be employed distinguish it from nematic e.g. in YBa 2 Cu 3 O 6 + δ .