Sylvie Hébert

TL;DR: Detailed study of steplike metamagnetic transitions in polycrystalline Pr0.95Co0.05O3.5Ca0.5Mn0.75O3, showing that the steps are an intrinsic property, qualitatively different from either previously observed higher temperature metam Magnetic transitions in the manganites or metam electromagnetic transitions observed in other materials.

TL;DR: In this paper, a detailed investigation of the temperature and time dependence of the spin-chain features was carried out and it was found that some of the magnetization steps can disappear as the characteristic time of the measurement is increased.

TL;DR: In this paper, in-plane resistivity, Hall effect, and specific heat measurements on the thermoelectric cobalt oxide were performed and four distinct transport regimes were found as a function of temperature.

TL;DR: In this article, the martensitic character of the antiferromagnetic-to-ferromagnetic transitions is identified as the origin of the magnetization steps, and it is shown that the field location and even the existence of these jumps depends critically on the magnetic field sweep rate used to record the data.

TL;DR: In this article, a comparative study of the doping properties of the CE-type antiferromagnet Pr0.5Ca 0.5MnO3 with 5% of different elements is presented, showing that two classes of materials can be generated from the viewpoint of the transport and magnetic properties, depending on the electronic configuration of the dopant.