title: A Griffiths-like phase in antiferromagnetic R0.5Eu0.5MnO3 (R = Pr, Nd, Sm).
abstract: We report a Griffiths-like phase in isovalent doped rare-earth manganites R(0.5)Eu(0.5)MnO(3) (R = Pr, Nd, Sm). Rietveld refinement of the structural data reveals strong orthorhombic and Jahn-Teller distortions. The dc and ac magnetic studies nicely demonstrate aspects of Griffiths phase-like behaviour. The presence of short range ferromagnetically correlated spin clusters is observed above the antiferromagnetic transition temperature. A disorder driven phase inhomogeneity arising from strong structural distortion is the possible origin of this behaviour.
authors: Department of Solid State Physics, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
authors: A
authors: A
authors: Karmakar
authors: S
authors: S
authors: Majumdar
authors: S
authors: S
authors: Kundu
authors: T K
authors: TK
authors: Nath
authors: S
authors: S
authors: Giri
mesh_terms: D008280:Magnetics; D059346:Magnets / Q000737:chemistry*; D017895:Manganese Compounds / Q000737:chemistry*; D008674:Metals, Rare Earth / Q000737:chemistry*; D008956:Models, Chemical; D010087:Oxides / Q000737:chemistry*; D044367:Phase Transition; D013696:Temperature
chemical_list: D017895:Manganese Compounds; D008674:Metals, Rare Earth; D010087:Oxides; C027424:manganese oxide