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Abstract: Based on the unrestricted Gutzwiller approximation we study the possibilitythat the diagonal incommensurate spin scattering in the spin glass phase oflanthanum cuprates originates from stripe formation. Similar to the metallicphase two types of diagonal stripe structures appear to be stable: asite-centered textures which have one hole per site along the stripe and bferromagnetic stair-case structures which are the diagonal equivalent tobond-centered stripes in the metallic phase and which on average have a fillingof 3-4 holes per stripe site. We give a detailed analysis of the stability ofboth diagonal textures with regard to the vertical ones.



Author: G. Seibold, J. Lorenzana

Source: https://arxiv.org/







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