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Abstract <p>Methods and approaches to studying hydrogen-containing compounds of the superprotonic family are presented. The results of neutron diffraction and microscopy diagnostics of the Cs<sub>3</sub>(HSO<sub>4</sub>)<sub>2</sub>(H<sub>2</sub>PO<sub>4</sub>) and Cs<sub>4</sub>(HSO<sub>4</sub>)<sub>3</sub>(H<sub>2</sub>PO<sub>4</sub>) crystals are reported. Structural aspects that determine changes in the physicochemical properties and surface structure of the crystals, as well as the role of hydrogen bonds, are highlighted. Bulk and local <i>I‒V</i> characteristics have been measured at 290‒413 K, the transition to the high-conductivity phase has been confirmed, and the degree of agreement of the results of the measurements by different methods in the vicinity of the phase transition has been established.</p>

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Complex Approach to Studying the Structure and Properties of Cesium Hydrosulfate-Phosphate Crystals

  • 期刊论文

  • 发表日期：

    2026年2月1日

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  • R. V. Gainutdinov,
  • A. L. Tolstikhina,
  • I. P. Makarova,
  • S. Leesment,
  • M. Yu. Yablokov,
  • N. N. Isakova,
  • A. I. Kalyukanov,
  • V. A. Komornikov

摘要

Abstract

Methods and approaches to studying hydrogen-containing compounds of the superprotonic family are presented. The results of neutron diffraction and microscopy diagnostics of the Cs3(HSO4)2(H2PO4) and Cs4(HSO4)3(H2PO4) crystals are reported. Structural aspects that determine changes in the physicochemical properties and surface structure of the crystals, as well as the role of hydrogen bonds, are highlighted. Bulk and local I‒V characteristics have been measured at 290‒413 K, the transition to the high-conductivity phase has been confirmed, and the degree of agreement of the results of the measurements by different methods in the vicinity of the phase transition has been established.