2013/11/30 by Sonu Namdeo, S. S. Rao, S. S. S. Rao +3 · 9 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Antiferromagnetism #Chemistry #Condensed matter physics #Crystal structure #Crystallography #Ferroelectricity #Frustration #Isostructural #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetic moment #Magnetic structure #Magnetization #Materials science #Multiferroics #Multiferroics and related materials #Neutron diffraction #Physics #Spin (aerodynamics) #Thermodynamics #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.4887809
published in Journal of Applied Physics 116(2) (American Institute of Physics) · 19 pages, 1 table, 9 figures, 32 (numbered) references (groups)
openalex publication_date 2014/07/10 · openalex created_date 2016/06/24 · arxiv created 2017/07/25 · arxiv updated 2017/07/26 · openalex updated_date 2026/08/05
Magnetic structure evolution of multiferroic hexagonal YMn1−xFexO3 (x = 0, 0.05, and 0.1) has been studied by carrying out detailed temperature-dependent neutron diffraction at zero and 5 T fields. Thermodynamic data confirm antiferromagnetic ordering at TN in all the compositions. Our sub-TN neutron diffraction results assign the magnetic structure of pure YMnO3 to Γ1 irreducible representation. Over the perturbative-doping range, magnetic structure changes via Γ1 + Γ2 for YMn0.95Fe0.05O3 on to Γ2 for YMn0.9Fe0.1O3, as the maiden compositional analogue of spin-reorientation; its occurrence in temperature-domain already reported for several manganites. Moreover, while the large thermal isostructural changes observed above TN are subdued in the ordered state, small alterations by the applied 5 T-field are relatively uniform across, confirming strong magneto-elastic nature of the system. Decrease of the ordered magnetic moment (μord) and planar magnetic frustration noted with Fe-doping is enhanced by the applied field, apparently through canting.