Phase transitions and caloric effects in ferroelectric solid solutions of ammonium and rubidium hydrosulfates

Описание

Тип публикации: статья из журнала

Год издания: 2011

Идентификатор DOI: 10.1134/S1063783411030188

Аннотация: Structural, calorimetric, dielectric, and electrocaloric investigations of Rb (x) (NH(4))(1 - x) HSO(4) ferroelectric solid solutions have been performed. It has been found that rubidium atoms inhomogeneously occupy nonequivalent crystallographic positions in the structure P2(1)/c. The influence of the rubidium concentration on theПоказать полностьюsequence of phase transitions in the NH(4)HSO(4) compound has been established. It has been revealed that the consequences of the Landau theory can be applied to the description of the temperature dependences of the anomalous heat capacity and the electrocaloric effect over a wide range of temperatures. Comparative evaluations of the electrocaloric and barocaloric effects in hydrosulfate and triglycine sulfate crystals have been carried out.

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Издание

Журнал: PHYSICS OF THE SOLID STATE

Выпуск журнала: Vol. 53, Is. 3

Номера страниц: 510-517

ISSN журнала: 10637834

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Mikhaleva E.A. (Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia)
  • Flerov I.N. (Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia)
  • Bondarev V.S. (Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia)
  • Gorev M.V. (Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia)
  • Vasiliev A.D. (Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia)
  • Davydova T.N. (Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia)

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