Exchange narrowing of Mössabauer line

A theoretical investigation is made of the broadening of the Mössbauer line in crystals containing exchange coupled magnetic ions. It is shown that the exchange narrowing of the Mössbauer line takes place near the phase magnetic transition in EuO. The determination of spin correlation function and the critical temperature from the width of the Mössbauer line in EuO is discussed.     

State of atoms of transition elements in dilute solid solutions based on LiMO2 (M = Sc, Ga, Al): I. Magnetic properties of LiFe x Sc1? x O2

Magnetic properties of solid solutions of the double oxide LiFeO₂ in a diamagnetic solvent LiScO₂ were studied. The observed anomalies in the magnetic parameters can be accounted for by the formation of nanoclusters of iron, oxygen, and lithium atoms. Original Russian Text ? N.P. Bobrysheva, A.A. Selyutin, 2007, published in Zhurnal Obshchei Khimii, 2007, Vol. 77, No. 6, pp. 890–894.     

Thermal stability and features of the synthesis of mixed ceramic oxides La2−x Sr x CoO4

Thermal behavior of the mixed oxides La_2?x Sr _x CoO₄ (0.1 < x < 1.5) in the temperature range 1200–1700 K was studied. The use of the ceramic synthesis method makes it possible to obtain homogeneous samples at the calcination temperature of 1673 K. It was found by the high-temperature mass-spectrometry method that a charge can be depleted of cobalt oxide during the high-temperature synthesis.