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Plateau on temperature dependence of magnetization of nanostructured rare earth titanates

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Abstract Magnetic properties of nanocomposite materials containing particles of rare earth titanates of R2Ti2O7 type, where R is a rare earth ion, including “spin ice” materials are investigated. The descending… Click to show full abstract

Abstract Magnetic properties of nanocomposite materials containing particles of rare earth titanates of R2Ti2O7 type, where R is a rare earth ion, including “spin ice” materials are investigated. The descending branches of hysteresis loop have been studied in detail in temperature range from 2 to 50 K. It has been shown that nanocomposites with Yb2Ti2O7, Dy2Ti2O7 and Er2Ti2O7 particles have one intersection point of the descending branches in some temperature range unlike many other nanocomposites. It is shown that magnetization has only weak temperature dependence near this point. It has been obtained that nanocomposites with Pr2Ti2O7 and Nd2Ti2O7 particles have no hysteresis loop. All above findings point out to unusual magnetic structures of the studied samples.

Keywords: temperature; rare earth; temperature dependence; earth titanates; magnetization

Journal Title: Journal of Magnetism and Magnetic Materials
Year Published: 2018

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