Correlated versus Uncorrelated Stripe Pinning: the Roles of Nd and Zn Co-Doping

Details Correlated versus Uncorrelated Stripe Pinning: the Roles of Nd and Zn Co-Doping Correlated versus Uncorrelated Stripe Pinning: the Roles of Nd and Zn Co-Doping

2000-10-26

arxiv.org/abs/cond-mat/0010422v1

Physics

Condensed Matter

Strongly Correlated Electrons

To appear at the proceedings of the LLD2K Conference Tsukuba, July 2000, Japan. 4 pages, 2 figures

Scientific paper

10.1063/1.1363075

We investigate the stripe pinning produced by Nd and Zn co-dopants in cuprates via a renormalization group approach. The two dopants play fundamentally different roles in the pinning process. While Nd induces a correlated pinning potential that traps the stripes in a flat phase and suppresses fluctuations, Zn pins the stripes in a disordered manner and promotes line meandering. We obtain the zero temperature phase diagram and compare our results with neutron scattering data. A good agreement is found between theory and experiment.

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