Open AccessМагнитострикция гексагональных монокристаллов HoMnO-=SUB=-3-=/SUB=- и YMnO-=SUB=-3-=/SUB=-
Author(s) -
Н.С. Павловский,
А.А. Дубровский,
С. Е. Никитин,
С.В. Семенов,
К.Ю. Терентьев,
К.А. Шайхутдинов
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.03.45555.257
Subject(s) - magnetostriction , condensed matter physics , materials science , phase diagram , ion , isostructural , crystal (programming language) , magnetic moment , samarium , magnetic field , crystallography , phase (matter) , crystal structure , physics , chemistry , inorganic chemistry , quantum mechanics , programming language , computer science
AbstractWe report on the magnetostriction of hexagonal HoMnO_3 and YMnO_3 single crystals in a wide range of applied magnetic fields (up to H = 14 T) at all possible combinations of the mutual orientations of magnetic field H and magnetostriction Δ L/L . The measured Δ L/L ( H, T ) data agree well with the magnetic phase diagram of the HoMnO_3 single crystal reported previously by other authors. It is shown that the nonmonotonic behavior of magnetostriction of the HoMnO_3 crystal is caused by the Ho^3+ ion; the magnetic moment of the Mn^3+ ion parallel to the hexagonal crystal axis. The anomalies established from the magnetostriction measurements of HoMnO_3 are consistent with the phase diagram of these compounds. For the isostructural YMnO_3 single crystal with a nonmagnetic rare-earth ion, the Δ L/L ( H, T ) dependences are described well by a conventional quadratic law in a wide temperature range (4–100 K). In addition, the magnetostriction effect is qualitatively estimated with regard to the effect of the crystal electric field on the holmium ion.