Fermi Arc of Metallic Diagonal Stripes in High Tc Cuprates

TL;DR

This paper investigates the spectral weight and Fermi arc phenomena in metallic diagonal stripe states of the 2D Hubbard model, relating theoretical results to ARPES observations in LSCO, and analyzing stripe phasing effects.

Contribution

It provides a detailed theoretical analysis of Fermi arc formation and spectral weight distribution in diagonal stripe states, connecting to experimental ARPES data in high Tc cuprates.

Findings

Fermi arc appears near (π/2,π/2) in reciprocal space.

Spectral gap opens below the mid-gap state.

Stripe phasing influences spectral weight structure.

Abstract

Spectral weight is investigated for metallic diagonal stripe state in two dimensional Hubbard model, and Fermi arc observed by angle-resolved photoemission spectroscopy on LSCO is discussed. The Fermi arc coming from the mid-gap state of diagonal stripe appears near $(\frac{\pi}{2},\frac{\pi}{2})$ and equivalent position in the reciprocal space, and the gap opens below the mid-gap state. We show how these spectral weight structure depends on the phasing of stripes, i.e., site-centered or bond-centered stripes.