Structural Diversity and Phase Transitions in Mg2 –xMn1 +xBO5 (x = 0.0, 0.2, 0.4) Borates with a Mixed Valence

Описание

Тип публикации: статья из журнала

Год издания: 2024

Идентификатор DOI: 10.1134/S0021364024603075

Аннотация: Single and polycrystalline samples of Mg2 –<i>x</i>Mn1 +<i>x</i>BO5 (<i>x</i> = 0.0, 0.2, 0.4) oxyborates have been obtained for the first time by spontaneous crystallization from the solution–melt and through a solid-state reaction. X-ray diffraction studies have shown that compounds are crystallized with increasing manganese content in the ludwigite (space group <i>Pbam</i>)–hulsite (space group <i>P</i>2/<i>m</i>)–orthopinakiolite (space group <i>Pbam</i>) series and belong to the “3 Å wallpaper” borate family. A common property of materials is the presence of octahedral complexes (walls) consisting of manganese ions with a mixed valence at even crystallographic sites. The dc magnetization and specific heat of the Mg2 –<i>x</i>Mn1 +<i>x</i>BO5 (<i>x</i> = 0.0, 0.2, 0.4) compounds have been studied for the first time. These studies have shown that cooling is accompanied by magnetic transitions, which are due to the ordering of several magnetic subsystems.

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Издание

Журнал: JETP Letters

Выпуск журнала: Т. 120, 7

Номера страниц: 509-516

ISSN журнала: 00213640

Место издания: Moscow

Издатель: Pleiades Publishing, Ltd.

Персоны

  • Belskaya N.A. (Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences)
  • Kazak N.V. (Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences)
  • Vasiliev A.D. (Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences)
  • Eremin E.V. (Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences)
  • Moshkina E.M. (Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences)
  • Velikanov D.A. (Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences)
  • Bezmaternykh L.N. (Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences)
  • Gavrilkin S.Yu. (Lebedev Physical Institute, Russian Academy of Sciences)
  • Ovchinnikov S.G. (Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences)

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