Coexistence of the magnetically ordered and Haldane states in (Y1-xNdx)2BaNiO5
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 : email@example.com
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
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