title: ÐÐ½Ð´ÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐµ Ð¿Ð¾Ð»ÐµÐ¼ ÑÑÑÑÐºÑÑÑÐ½ÑÐµ Ð¿ÐµÑÐµÐºÐ»ÑÑÐµÐ½Ð¸Ñ Ð² Ð¼Ð¾Ð½Ð¾ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ðµ PbHfO3
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: The study of a single crystal of a model AFE lead hafnate by X-ray diffraction with in-situ application of the electric field
Creators: name: ÐÑÑÐ¸Ð¿Ð¾Ð², ÐÐ¸ÐºÐ¾Ð»Ð°Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: in-situ Ð´Ð¸ÑÑÐ°ÐºÑÐ¸Ñ
Ð³Ð°ÑÐ½Ð°Ñ ÑÐ²Ð¸Ð½ÑÐ°
Ð¸Ð½Ð´ÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐµ Ð¿Ð¾Ð»ÐµÐ¼ ÑÐ°Ð·Ð¾Ð²ÑÐµ Ð¿ÐµÑÐµÑ Ð¾Ð´Ñ
Ð°Ð½ÑÐ¸ÑÐµÐ³Ð½ÐµÑÐ¾ÑÐ»ÐµÐºÑÑÐ¸ÐºÐ¸
ÑÐµÐ³Ð½ÐµÑÐ¾ÑÐ»ÐµÐºÑÑÐ¸ÐºÐ¸
in-situ diffraction
lead hafnate
field-induced phase transitions
antiferroelectrics
ferroelectrics

description: ÐÐ½ÑÐ¸ÑÐµÐ³Ð½ÐµÑÐ¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ (ÐÐ¡Ð­) Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÑÑ Ð¸Ð½ÑÐµÑÐµÑ Ð² ÑÐ²ÑÐ·Ð¸ Ñ Ð½ÐµÐ´Ð°Ð²Ð½Ð¸Ð¼Ð¸ Ð¾ÑÐºÑÑÑÐ¸ÑÐ¼Ð¸ Ð¸Ñ Ð¿ÑÐ¸ÐºÐ»Ð°Ð´Ð½Ð¾Ð³Ð¾ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð² ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð¸ÐºÐµ, Ð² ÑÑÐ¾ Ð¶Ðµ ÑÐ°Ð¼Ð¾Ðµ Ð²ÑÐµÐ¼Ñ Ð¼ÐµÑÐ°Ð½Ð¸Ð·Ð¼Ñ ÑÐ°Ð·Ð¾Ð²ÑÑ Ð¿ÐµÑÐµÑÐ¾Ð´Ð¾Ð², Ð»ÐµÐ¶Ð°ÑÐ¸Ðµ Ð² Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¸Ñ Ð¿ÑÐ¸ÐºÐ»Ð°Ð´Ð½ÑÑ ÑÐ²Ð¾Ð¹ÑÑÐ², Ð¾ÑÑÐ°ÑÑÑÑ Ð¿Ð¾Ð½ÑÑÑÐ¼Ð¸ Ð½Ðµ Ð´Ð¾ ÐºÐ¾Ð½ÑÐ°. Ð­ÑÐ° ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼Ð¾Ð½Ð¾ÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð° Ð¼Ð¾Ð´ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÐÐ¡Ð­ Ð³Ð°ÑÐ½Ð°ÑÐ° ÑÐ²Ð¸Ð½ÑÐ° Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾Ð²ÑÐºÐ¾Ð¹ Ð´Ð¸ÑÑÐ°ÐºÑÐ¸Ð¸ Ñ in-situ Ð¿ÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸ÐµÐ¼ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ Ð´Ð»Ñ Ð¸Ð½Ð´ÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÐµÑÐµÑÐ¾Ð´Ð° Ð² Ð¿Ð¾Ð»ÑÑÐ½ÑÑ ÑÐ°Ð·Ñ. ÐÑÐ»Ð¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ Ð´Ð²Ð° Ð¿Ð¾ÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½ÑÑ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ° Ð½Ð° Ð¿Ð»Ð°ÑÑÐ¸Ð½ÐºÐµ ÑÐ¾Ð»ÑÐ¸Ð½Ð¾Ð¹ 35 Ð¼ÐºÐ¼ Ñ Ð¾ÑÐ¸ÐµÐ½ÑÐ°ÑÐ¸ÐµÐ¹ [110] Ð¿Ð¾ Ð½Ð¾ÑÐ¼Ð°Ð»Ð¸ Ðº Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ¸ Ð² Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ðµ Ð¿Ð¾Ð»ÐµÐ¹ Ð¾Ñ 0 Ð´Ð¾ 330 ÐºÐ/ÑÐ¼ Ð¸ Ð¾Ñ 330 ÐºÐ/ÑÐ¼ Ð´Ð¾ 0. Ð ÐµÐ·ÐºÐ¾Ðµ Ð¿Ð°Ð´ÐµÐ½Ð¸Ðµ Ð¸Ð½ÑÐµÐ½ÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÐÐ¡Ð­ ÑÐ²ÐµÑÑÑÑÑÑÐºÑÑÑÐ½ÑÑ ÑÐµÑÐ»ÐµÐºÑÐ¾Ð² R- Ð¸ Î£-ÑÐ¸Ð¿Ð¾Ð² Ð±ÑÐ»Ð¾ Ð·Ð°ÑÐµÐ³Ð¸ÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¾ Ð¿Ð¾ÑÐ»Ðµ ÐºÑÐ¸ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ Ð² 225 ÐºÐ/ÑÐ¼ Ñ Ð¿Ð¾ÑÑÐ¸ Ð¿Ð¾Ð»Ð½ÑÐ¼ Ð¸ÑÑÐµÐ·Ð½Ð¾Ð²ÐµÐ½Ð¸ÐµÐ¼ Ð¿Ð¾ÑÐ»Ðµ 250 ÐºÐ/ÑÐ¼. Ð­ÑÐ¾ ÑÐ¾Ð³Ð»Ð°ÑÑÐµÑÑÑ Ñ Ð¸Ð½Ð´ÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐ¼ Ð¿Ð¾Ð»ÐµÐ¼ ÑÐ°Ð·Ð¾Ð²ÑÐ¼ Ð¿ÐµÑÐµÑÐ¾Ð´Ð¾Ð¼ Ð¾Ñ ÐÐ¡Ð­ Ðº Ð¿Ð¾Ð»ÑÑÐ½Ð¾Ð¹ ÑÐ°Ð·Ðµ Ñ ÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸ÐµÐ¹ R3m, ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð±ÑÐ» Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½ ÑÐ°Ð½ÐµÐµ Ð² ÑÐ°Ð±Ð¾ÑÐ°Ñ, Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð½ÑÑ Ð½ÐµÐ´Ð¸ÑÑÐ°ÐºÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð³Ð°ÑÐ½Ð°ÑÐ° ÑÐ²Ð¸Ð½ÑÐ°. ÐÐ¸ÑÑÐ°ÐºÑÐ¸Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð»Ð°, ÑÑÐ¾ Ð´Ð¾Ð¼ÐµÐ½Ñ ÐÐ¡Ð­ Ñ Ð¿Ð°ÑÐ°Ð»Ð»ÐµÐ»ÑÐ½ÑÐ¼Ð¸ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð»Ñ ÑÐ¼ÐµÑÐµÐ½Ð¸ÑÐ¼Ð¸ Ð°ÑÐ¾Ð¼Ð¾Ð² ÑÐ²Ð¸Ð½ÑÐ°, ÑÐµÐ°Ð³Ð¸ÑÑÑÑ Ð³Ð¾ÑÐ°Ð·Ð´Ð¾ Ð¼ÐµÐ½ÐµÐµ ÑÐµÐ·ÐºÐ¾ Ð½Ð° Ð¿Ð¾Ð»Ðµ, Ð¿Ð¾ÑÑÐµÐ¿ÐµÐ½Ð½Ð¾ ÑÐ¼ÐµÐ½ÑÑÐ°Ñ Ð¿Ð¾ÑÑÐ´Ð¾Ðº ÐÐ¡Ð­ ÑÐ¶Ðµ Ð¿ÑÐ¸ Ð¾ÑÐµÐ½Ñ Ð¼Ð°Ð»ÑÑ Ð¿Ð¾Ð»ÑÑ Ð²Ð¼ÐµÑÑÐ¾ ÑÐ¾Ð³Ð¾, ÑÑÐ¾Ð±Ñ Ð¿Ð¾Ð´Ð´ÐµÑÐ¶Ð¸Ð²Ð°ÑÑ ÐµÐ³Ð¾ Ð¿Ð¾ÑÑÐ¸ Ð¿Ð¾ÑÑÐ¾ÑÐ½Ð½ÑÐ¼ Ð²Ð¿Ð»Ð¾ÑÑ Ð´Ð¾ ÐºÑÐ¸ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ Ð¿Ð¾Ð»Ñ, ÑÑÐ¾ Ð±ÑÐ»Ð¾ Ð¾Ð¶Ð¸Ð´Ð°ÐµÐ¼Ð¾. Ð­ÑÐ¾ Ð¾Ð¶Ð¸Ð´Ð°Ð½Ð¸Ðµ Ð²ÑÐ¿Ð¾Ð»Ð½ÑÐµÑÑÑ Ð´Ð»Ñ Ð¾Ð±Ð»Ð°ÑÑÐµÐ¹ Ñ Ð´ÑÑÐ³Ð¸Ð¼Ð¸ Ð¾ÑÐ¸ÐµÐ½ÑÐ°ÑÐ¸ÑÐ¼Ð¸, Ð½Ð¾ ÑÐ¾Ð»ÑÐºÐ¾ Ð´Ð»Ñ Ð¿ÐµÑÐ²Ð¾Ð³Ð¾ ÑÐ¸ÐºÐ»Ð° Ð¿ÐµÑÐµÐºÐ»ÑÑÐµÐ½Ð¸Ñ: Ð¿ÑÐ¸ Ð²ÑÐ¾ÑÐ¾Ð¼ ÑÐ¸ÐºÐ»Ðµ Ð¿ÐµÑÐµÐºÐ»ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÑÐ´Ð¾Ðº ÐÐ¡Ð­ Ð·Ð°Ð¼ÐµÑÐ½Ð¾ ÑÐ½Ð¸Ð¶Ð°ÐµÑÑÑ ÑÐ¶Ðµ Ð² Ð¿Ð¾Ð´ÐºÑÐ¸ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¾Ð±Ð»Ð°ÑÑÑÑ. ÐÑ Ð¿ÑÐµÐ´Ð¿Ð¾Ð»Ð°Ð³Ð°ÐµÐ¼, ÑÑÐ¾ ÑÑÐ¸ Ð½Ð°Ð±Ð»ÑÐ´ÐµÐ½Ð¸Ñ ÑÐ²ÑÐ·Ð°Ð½Ñ Ñ Ð½Ð°Ð»Ð¸ÑÐ¸ÐµÐ¼ Ð¿ÑÐ¾ÑÐ¸Ð²Ð¾ÑÐ°Ð·Ð½ÑÑ Ð´Ð¾Ð¼ÐµÐ½Ð½ÑÑ ÑÑÐµÐ½Ð¾Ðº, Ð½Ð° ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ Ð²Ð»Ð¸ÑÑÑ Ð´Ð°Ð¶Ðµ ÑÐ»Ð°Ð±Ð¾Ðµ Ð¿Ð¾Ð»Ðµ, ÑÑÐ¾ ÑÐ¾Ð³Ð»Ð°ÑÑÐµÑÑÑ Ñ Ð½Ð°Ð±Ð»ÑÐ´ÐµÐ½Ð¸ÐµÐ¼ Ð´Ð¸ÑÑÑÐ·Ð½ÑÑ ÑÑÐµÑÐ¶Ð½ÐµÐ¹ Ð¼ÐµÐ¶Ð´Ñ ÑÐ¾ÑÐºÐ°Ð¼Ð¸ Î Ð¸ Î£.
description: Antiferroelectric (AFE) materials are interesting due to recent discoveries of new prospective applications, while the mechanisms of phase transitions that are at the heart of those applications remain incompletely understood. This work is devoted to the study of a single crystal of a model AFE lead hafnate by X-ray diffraction with in-situ application of the electric field to trigger the transition to polar phase. Two consecutive experiments were carried out on a 35 Î¼m thick plate with [110] surface normal orientation at field range from 0 to 330 kV/cm and back. The sharp drop in the intensity of R- and Î£-type reflections around 225 kV/cm with almost complete disappearance after 250 kV/cm was registered. This is compatible with a field-induced phase transition from the AFE to the R3m polar phase, which was suggested earlier on the basis of non-diffraction characterizations. Diffraction reveals that the AFE domains with displacements parallel to the field direction react much smoother to the field, gradually reducing the AFE order already at very small fields instead of holding it almost constant up to the critical field value, which is naturally expected. This natural expectation is fulfilled for domains with other orientations, but only for the first switching cycle: at the second switching cycle the AFE order shows a notable decrease already at subcritical fields. We suggest these observations to be linked with anti-phase domain wall population being affected by the field, which is consistent with the observation of diffuse rods between the Î and Î£ points. Another remarkable observation is the much smoother recovery of the AFE phase as compared to its sharp disappearance at the critical field.