Electron resonance and magnetic response of low-doped La0. 88Ca0. 12MnO3 and La0. 9Sr0. 1MnO3 manganite single crystals Academic Article uri icon

abstract

  • Ferromagnetic resonance and ac/dc magnetic properties of the low-doped La0.88Ca0.12MnO3 and La0.9Sr0.1MnO3 manganite single crystals were studied below (down to 5 K) their paramagnetic-ferromagnetic phase transition. It appears that technologically driven chemical/structural disorder inherent to low-doped manganites influences strongly on both resonance and magnetic properties of these crystals. It is suggested that a special complexity of such disorder, which manifests itself in Sr-doped crystal on the “meso-” and “macroscopic” scales, may cause additional (as compared to the more structurally homogeneous Ca-doped sample) orbital ordering at lowest temperatures.

publication date

  • January 1, 2012