<abstract xmlns="http://www.w3.org/1999/xhtml"> Na3Ln(PO4)2 orthophosphates (Ln = La, Gd) doped with Er3+ and co-doped with Cr3+ ions were synthesized by Pechini method and characterized by electron paramagnetic resonance (EPR) and magnetic susceptibility measurements. Low temperature EPR spectra were detected and analyzed in terms of temperature dependence and the structure of the obtained materials. They show that erbium and chromium ions substitute Ln3+ and also Na+ ions or Na+ channels forming complex EPR spectra. Both kinds of ions reveal ferromagnetic type of interaction which shows some anomaly at the temperature between 10 K and 15 K. Magnetic susceptibility reveals a weak antiferromagnetic kind of interaction dominating in the whole temperature range, from 3.5 to 300 K.</abstract>

Na3Ln(PO4)2 orthophosphates (Ln = La, Gd) doped with Er3+ and co-doped with Cr3+ ions were synthesized by Pechini method and characterized by electron paramagnetic resonance (EPR) and magnetic susceptibility measurements. Low temperature EPR spectra were detected and analyzed in terms of temperature dependence and the structure of the obtained materials. They show that erbium and chromium ions substitute Ln3+ and also Na+ ions or Na+ channels forming complex EPR spectra. Both kinds of ions reveal ferromagnetic type of interaction which shows some anomaly at the temperature between 10 K and 15 K. Magnetic susceptibility reveals a weak antiferromagnetic kind of interaction dominating in the whole temperature range, from 3.5 to 300 K.

Magnetic characterization of microcrystalline Na3Ln0.99–xEr0.01Crx(PO4)2 orthophosphates synthesized by Pechini method (Ln = La, Gd)

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Magnetic characterization of microcrystalline NaLnErCr(PO) orthophosphates synthesized by Pechini method (Ln = La, Gd)

Na3Ln(PO4)2 orthophosphates (Ln = La, Gd) doped with Er3+ and co-doped with Cr3+ ions were synthesized by Pechini method and characterized by electron...

Magnetic characterization of microcrystalline Na₃Ln_0.99–xEr_0.01Cr_x(PO₄)₂ orthophosphates synthesized by Pechini method (Ln = La, Gd)

Published Online: Mar 20, 2018

Page range: 733 - 745

Received: Oct 30, 2016

Accepted: Oct 18, 2017

DOI: https://doi.org/10.1515/msp-2017-0094

Keywords
orthophosphates, erbium, chromium, EPR technique, magnetization measurements

© 2018

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Magnetic characterization of microcrystalline Na3Ln0.99–xEr0.01Crx(PO4)2 orthophosphates synthesized by Pechini method (Ln = La, Gd)

Published Online: Mar 20, 2018

Page range: 733 - 745

Received: Oct 30, 2016

Accepted: Oct 18, 2017

DOI: https://doi.org/10.1515/msp-2017-0094

Keywordsorthophosphates, erbium, chromium, EPR technique, magnetization measurements

© 2018

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Magnetic characterization of microcrystalline Na₃Ln_0.99–xEr_0.01Cr_x(PO₄)₂ orthophosphates synthesized by Pechini method (Ln = La, Gd)

Keywords
orthophosphates, erbium, chromium, EPR technique, magnetization measurements