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Title: Magnetocaloric Effect in Two-Dimensional Diluted Ising Model: Appearance of Frustrations in the Ground State
Authors: Shadrin, A. V.
Ulitko, V. A.
Panov, Y. D.
Issue Date: 2020
Publisher: Pleiades Publishing
Pleiades Publishing Ltd
Citation: Shadrin A. V. Magnetocaloric Effect in Two-Dimensional Diluted Ising Model: Appearance of Frustrations in the Ground State / A. V. Shadrin, V. A. Ulitko, Y. D. Panov // Physics of the Solid State. — 2020. — Vol. 62. — Iss. 9. — P. 1719-1724.
Abstract: Abstract: The magnetocaloric effect in a two-dimensional Ising model is considered for different ratios between parameters of inter-site repulsion of nonmagnetic impurities and exchange coupling. Classical Monte Carlo simulations on a square lattice show that in case of weak coupling and at sufficiently high concentrations of nonmagnetic impurities the long-range ferromagnetic ordering breaks down to give isolated spin clusters in the ground state of the system. This leads to appearance of a paramagnetic response in the system at the zero temperature and nonzero entropy of the ground state. The feasibility to detect frustration of ground state using data on the magnetic entropy variation is discussed. © 2020, Pleiades Publishing, Ltd.
Access: info:eu-repo/semantics/openAccess
RSCI ID: 45328096
SCOPUS ID: 85090875717
PURE ID: 13931206
ISSN: 1063-7834
DOI: 10.1134/S1063783420090267
metadata.dc.description.sponsorship: The work was supported within the Competitiveness Enhancement Program of the Ural Federal University (Russian Federation Government Act 211, agreement no. 02.A03.21.0006), by the Ministry of Education and Science, Russian Federation (project FEUZ-2020-0054), and by the Russian Foundation for Basic Research (research project no. 18-32-00837/18).
Appears in Collections:Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC

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