Stripe orientation in an anisotropict−Jmodel

2001/02/28 by A. P. Kampf, Arno P. Kampf, D. J. Scalapino +2 · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.64.052509

3 pages, 3 figures

arxiv created 2001/02/28 · openalex publication_date 2001/07/16 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The tilt pattern of the CuO₆ octahedra in the low-temperature tetragonal (LTT) phase of the cuprate superconductors leads to planar anisotropies for the exchange coupling and hopping integrals. Here, we show that these anisotropies provide a possible structural mechanism for the orientation of stripes. A t_x\ensuremath-t_y\ensuremath-J_x\ensuremath-J_y model thus serves as an effective Hamiltonian to describe stripe formation and orientation in LTT-phase cuprates.

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