Impurity Influences on the Stripe Pattern

Many experiments in high-Tc cuprates have clearly indicated the stripe order for decades ago. Recently the cluster glasses with randomly oriented domains of stripelike patterns have been observed by scanning tunneling spectroscopy[1]. However, it is still unclear whether or not the charge pattern is intimately related to disorder in real materials. Using a variational Monte-Carlo approach with a recently proposed cluster-glass stripe wave function in the t-t'-t"-J model[2], we will report the relation between the stripe configurations and impurities. [1]Y. Kohsaka, et al., Science 315, 1380 (2007). [2]C.-P. Chou, et al., Phys. Rev. B 78, 134530 (2008).