https://doi.org/10.1140/epjp/s13360-023-03876-8
Regular Article
Perturbation of exchange interaction in Nd–Ni spin subsystem of nickelate
Department of Physics, Jadavpur University, 700032, Kolkata, India
c
ajayk.ghosh@jadavpuruniversity.in
Received:
14
November
2022
Accepted:
8
March
2023
Published online:
16
March
2023
A spin subsystem of a nano-sized NdNi
of a nickelate superconductor is chosen to calculate its contribution in controlling magnetic phase transition. The role of the spin distribution of NdNi in controlling magnetization (M) is studied within the framework of the mean field theory (MFT). Two different levels of perturbation in the exchange interaction between spins of Ni and Nd have been used. M (H, T) has been calculated numerically for perturbations of 0, 0.15 and 0.30 with respect to an unperturbed 
. Changes in M (H) in the range of T = 10.0–300.0 K have been found to be very sensitive to perturbation. Possibility of a magnetic phase transition has been found which is sensitive to the perturbation of the exchange integral. Sensitivity of the broadening of the phase transition is weaker for the level of perturbation in comparison with that for the magnetic field. Susceptibility is also calculated and analysed to understand how perturbed exchange integral affects magnetic phase transition in spin distribution of NdNi.
The original version of this article was revised to correct author name A. J. Ghosh to A. K. Ghosh in references 10, 11 and 12.
Copyright comment corrected publication 2023
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. corrected publication 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
