Magnetic behavior of La2CoMnO6− crystal doped with Pb and Pt

Magnetic and electric field characterization of La2CoMnO6 crystals doped with Pb

“…The magnetic response of LCMO:Pb to dc‐magnetic fields (figures , and ) is very similar to that recently reported for La 2 CoMnO 6‐δ doped with Pb and Pt . Its Curie temperature is 185 K and its saturation magnetization is ∼6.5 µ B /f.u.…”

“…very likely indicates a certain oxygen deficiency in the structure . The suppression of the Curie temperature T C to 185 K is quite similar to that reported for La 2 CoMnO 6‐δ crystal doped with Pb and Pt and could therefore be related to imperfections in the composition and non‐stoichiometric Co 2+ /Mn 4+ ratio.…”

“…The LCMO:Pb crystals were grown by the high temperature solution growth method – see Refs. . No spurious inclusions were detected by scanning electron microscopy (SEM).…”

“…and a disordered one with T C in the range of 134–148 K and M s ∼ 3.5 µ B /f.u.. The growth of single crystals is additionally complicated by the narrow phase homogeneity area of La 2 CoMnO 6 and the slowness of the growth process, and there are only few works on characterization of single crystals . However, despite the mentioned difficulties, the observation of magnetodielectric and magnetoresistance effects near room temperature in La 2 NiMnO 6 revived the interest in La 2 CoMnO 6 .…”

“…Y. Q. Lin and X. M. Chen showed that ordered and disordered phases co‐exist in La 2 CoMnO 6 polycrystalline samples exhibiting magnetodielectric effect and having a giant dielectric constant. We recently reported on the single magnetic phase La 2 CoMnO 6 crystal doped with Pb and Pt .…”