Sliding charge-density wave in manganites

Sliding charge-density wave in manganites.

Stripe and chequerboard phases appear in many metal oxide compounds, and are thought to be linked to exotic behaviour such as high-temperature superconductivity and colossal magnetoresistance. It is therefore extremely important to understand the fundamental nature of such phases. The so-called stripe phase of the manganites has long been interpreted as the localization of charge at atomic site...

Sliding charge-density wave in two-dimensional rare-earth tellurides

Evidence for the charge-density-wave nature of the stripe phase in manganites

Heat capacity and magnetization measurements strongly suggest that the onset of the stripe phase in La0.50Ca0.50MnO3, La0.48Ca0.52MnO3 and Pr0.48Ca0.52MnO3 is due to the formation of a charge density wave. The transition associated with the onset of the stripe phase is second order, and it can be well modelled as a Peierls transition (typically associated with chargedensity-wave formation) in a...

Charge Density Waves: an Emergent Ground State in the Manganites

This paper reviews selected developments from the last ten years which argue that the stripe phase observed in the manganites is, in fact, an emergent charge density wave ground state. The paper’s main focus is directed towards two recent papers on this subject. The first is a theoretical treatment using Ginzburg-Landau theory, and the second is an experimental work using resistivity measuremen...

Sliding density wave in Sr14Cu24O41 ladder compounds.

We used transport and Raman scattering measurements to identify the insulating state of self-doped spin (1/2) two-leg ladders of Sr14Cu24O41 as a weakly pinned, sliding density wave with nonlinear conductivity and a giant dielectric response that persists to remarkably high temperatures.