Details of Magnetic Properties in Pb(Fe1/2Nb1/2)O3

M. Maryškoa, V.V. Lagutaa, I.P. Raevski b aInstitute of Physics of ASCR, Na Slovance 2,18200 Prague 8, Czech Republic bInstitute of Physics, Southern Federal University, Rostov on Don 344090, Russia

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For Pb(Fe0.5Nb0.5)O3 the χ(T) and m(H) measurements up to 70 kOe were performed with the aim to estimate the antiferromagnetic (AFM) and superantiferromagnetic (SAF) contribution to χ(T). Below TN the increase of χ(T) is attributed to a small part of Fe3+ ions in the SAF clusters. For high fields the suppression of the AFM and enhancement of the SAF susceptibility was observed. An inflection point of the m(H) curves below the Néel point suggests the presence of a spin reorientation process connected with the AFM phase.

DOI: 10.12693/APhysPolA.126.376 PACS numbers: 75.30.Cr, 75.85.+t, 75.50.Ee