Computation of stripes in cuprates within the LDA+U method -: art. no. 172501

被引：46

作者：

Anisimov, VI

Korotin, MA

Mylnikova, AS

Kozhevnikov, AV

Korotin, DM

Lorenzana, J

机构：

[1] Russian Acad Sci, Inst Met Phys, Ekaterinburg 620219, Russia

[2] Ural State Tech Univ, Ekaterinburg 620002, Russia

[3] Univ Roma La Sapienza, INFM, Ctr Stat Mech & Complex, I-00185 Rome, Italy

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.70.172501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a 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.

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页码：1 / 4

页数：4

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