Synthesis, Crystal Structure, and Magnetic Properties of the YbFeTi2O7 Compound

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1134/S1063783418030095

Аннотация: We report on the synthesis conductions and results of experimental investigations of the crystal structure and magnetic properties of a new magnetic compound YbFeTi2O7. According to the X-ray diffractometry data, the crystal structure of the investigated compound is described by the rhombic space group Pcnb with unit cell parameters of a = 9.8115(1) , b = 13.5106(2) , and c = 7.31302(9) and atomic disordering in the distribution of iron ions Fe3+ over five structural sites. The magnetic measurements in the lowtemperature region revealed a kink in the temperature dependence of the magnetic moment and its dependence on the sample magnetic prehistory. The experimental results obtained suggest that with a decrease in temperature the sample passes from the paramagnetic state to the spin-glass-like magnetic state characterized by a freezing temperature of T (f) = 4.5 K at the preferred antiferromagnetic exchange coupling in the sample spin system. The chemical pressure variation upon replacement of rare-earth ion R by Yb in the RFeTi2O7 system does not change the crystal lattice symmetry and magnetic state.

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Издание

Журнал: PHYSICS OF THE SOLID STATE

Выпуск журнала: Vol. 60, Is. 3

Номера страниц: 532-536

ISSN журнала: 10637834

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Drokina T.V. (Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia)
  • Petrakovskii G.A. (Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia)
  • Molokeev M.S. (Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia; Far Eastern State Transport Univ, Khabarovsk 680000, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Velikanov D.A. (Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia)

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