Special features of magnetism in Dy 1 –  x  Ho  x  MnO 3

A. N. Matveeva; Матвеева А. Н.; I. A. Zobkalo; Зобкало И. А.; A. G. Pshenichnaia; Пшеничная А. Г.

doi:10.31857/S0367676522701010

Special features of magnetism in Dy_1 – xHo_xMnO₃

Autores: Matveeva A.N.¹, Zobkalo I.A.¹, Pshenichnaia A.G.¹
Afiliações:
1. Konstantinov Petersburg Nuclear Physics Institute, National Research Centre “Kurchatov Institute”
Edição: Volume 87, Nº 4 (2023)
Páginas: 567-572
Seção: Articles
URL: https://ogarev-online.ru/0367-6765/article/view/135364
DOI: https://doi.org/10.31857/S0367676522701010
EDN: https://elibrary.ru/NPHPOV
ID: 135364

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Resumo

Crystal and magnetic structures of Dy_{1 –} _xHo_xMnO₃ multiferroic single crystals (x = 0, 0.2) were investigated by the neutron diffraction methods. It is shown that the substitution of Dy by Ho at the level of 20% does not change the crystal symmetry of the compound. Description was made using the Pbnm group down to very low temperatures for both compounds. Within accuracy of the measurements, magnetic ordering does not change the crystal structure. Substitution of Dy by Ho suppresses spontaneous ordering of a rare-earth subsystem with a propagation vector (0 0.5 0). This leads to a situation when two magnetic subsystems, manganese and rare-earth ones, have a coherent incommensurate space propagation.

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