https://doi.org/10.1051/epjconf/201818503003
Coexistence of the magnetically ordered and Haldane states in (Y1-xNdx)2BaNiO5
1
National Research University Higher School of Economics, 101000 Moscow, Russia
2
Institute of Spectroscopy RAS, 108840 Troitsk, Moscow, Russia
3
Kirchhoff Institute for Physics, University of Heidelberg, INF 227, 69120, Heidelberg, Germany
4
Leibniz-Institute for Solid State and Materials Research IFW Dresden, 01171 Dresden, Germany
5
Low Temperature Physics Department, Moscow State University, 119991 Moscow, Russia
* Corresponding author : eapopova@hse.ru
Published online: 4 July 2018
The magnetic properties of (Y1-xNdx)2BaNiO5 with x = 0.01, 0.02, 0.03, 0.04, and 0.05 are investigated by means of specific heat, magnetic susceptibility, and spectroscopic measurements. We estimate a magnetic contribution of the neodymium subsystem into the magnetic susceptibility and specific heat using temperature dependencies of the splitting of the ground Kramers doublet of the Nd3+ ion obtained from spectroscopic experiments. We estimate also the contribution caused by nickel chain breaks and by ferrons. Different scenarios of low-temperature magnetic behavior are discussed.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
