Effect of nonmagnetic impurities on stripes in high-Tc cuprates

Details Effect of nonmagnetic impurities on stripes in high-Tc cuprates Effect of nonmagnetic impurities on stripes in high-Tc cuprates

2000-12-02

arxiv.org/abs/cond-mat/0012024v1

Physica C, 357-360 (2001) pp.93-95

Physics

Condensed Matter

Strongly Correlated Electrons

3 pages including 2 figures. Proceedings for ISS2000 (Tokyo, October 2000). To be published in Physica C

Scientific paper

10.1016/S0921-4534(01)00201-5

We perform the numerically exact diagonalization study of the t-J model with nonmagnetic impurities to clarify the relation between Zn impurities and the stripes. By examining the hole-hole correlation function for a two-hole \sqrt{18}x\sqrt{18} cluster with a single impurity, we find that the impurity has a tendency to stabilize vertical charge stripes. This tendency is caused by the gain of the kinetic energy of holes moving along the stripes that are formed avoiding the impurity.

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