First principle computation of stripes in cuprates
Anisimov, V. I. · Korotin, M. A. · Mylnikova, A. S. · Kozhevnikov, A. V. · Lorenzana, J.
Original · EN
We present a first principle computation of vertical stripes in La₁₅/₈Sr₁/₈CuO₄ within the LDA+U method. We find that Cu centered stripes are unstable toward O centered stripes. The metallic core of the stripe is quite wide and shows reduced magnetic moments with suppressed antiferromagnetic (AF) interactions. The system can be pictured as alternating metallic and AF two-leg ladders the latter with strong AF interaction and a large spin gap. The Fermi surface shows warping due to interstripe hybridization. The periodicity and amplitude of the warping is in good agreement with angle resolved photoemission experiment. We discuss the connection with low-energy theories of the cuprates.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.