On the dimensionality of spin and charge modulations in 1/8 doped lanthanum cuprates

I compare the standard one-dimensional stripe interpretation of elastic scattering experiments in 1/8 doped lanthanum cuprates with two two-dimensional interpretations. One of them is known as grid[1,2] and the other one is the lattice of magnetic vortices[3]. Both can induce a 4x4 charge modulation similar to the one detected by scanning tunneling spectroscopy. The case of magnetic vortices, however, is favored against grid by a recent spin polarized neutron scattering experiment. \newline [1] B.V. Fine, Phys. Rev. B, v. 70, p. 224508 (2004) \newline [2] B.V. Fine, cond-mat/0606300 \newline [3] B.V. Fine, cond-mat/0610748