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Single ferroelectric phase transition in tris-sarcosine calcium chloride
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SYSNO ASEP 0579315 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Single ferroelectric phase transition in tris-sarcosine calcium chloride Author(s) Goian, Veronica (FZU-D) RID, ORCID
Borodavka, Fedir (FZU-D) RID, ORCID
Repček, Dalibor (FZU-D) ORCID
Savinov, Maxim (FZU-D) RID, ORCID
Míšek, Martin (FZU-D) RID, ORCID
Kaštil, Jiří (FZU-D) RID, ORCID
Skoromets, Volodymyr (FZU-D) RID
Ondrejkovič, Petr (FZU-D) RID, ORCID
Petzelt, Jan (FZU-D) RID, ORCID, SAI
Hlinka, Jiří (FZU-D) RID, ORCID
Kužel, Petr (FZU-D) RID, ORCID, SAI
Kamba, Stanislav (FZU-D) RID, ORCID, SAINumber of authors 12 Article number 224101 Source Title Physical Review B. - : American Physical Society - ISSN 2469-9950
Roč. 108, č. 22 (2023)Number of pages 8 s. Language eng - English Country US - United States Keywords ferroelectric ; phase transition ; phonons ; calorimetery ; spectroscopy Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GA21-06802S GA ČR - Czech Science Foundation (CSF) LM2023065 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 001141689400004 EID SCOPUS 85179500298 DOI 10.1103/PhysRevB.108.224101 Annotation o solve the long-standing controversy over the number of ferroelectric phase transitions in (CH3NHCH2COOH)3CaCl2, we performed a comprehensive series of new dielectric, second-harmonic generation(SHG), calorimetric, IR, and Raman measurements down to 10 K. Detailed analysis of the data excludes other ferroelectric transitions than the one at TC = 130 K from the Pnma to Pn21a orthorhombic space groups. We found a weak and strongly frequency-dependent dielectric anomaly in the radiofrequency permittivity close to 65 K, where the second phase transition was previously suggested. This behavior is assigned to the domain wall dynamics. Temperature dependences of the spontaneous polarization, heat capacity, and SHG signal show no indication of any further phase transition below TC. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://doi.org/10.1103/PhysRevB.108.224101
Number of the records: 1