Domain Structure and Birefringence in Pyridinium Perchlorate and Pyridinium Fluoroborate Single Crystal

• Authors: B. Kosturek , Z. Czapla
• Languages of publication: EN

Abstracts

EN

Pyridinium perchlorate and pyridinium fluoroborate were grown and their successive phase transitions were studied by means of polarized microscopic observations and measurements of linear birefringence temperature changes. The microscopic observations revealed domain structure appearance at 245 K and 238.7 K for pyridinium perchlorate and pyridinium fluoroborate, respectively. This domain structure exists also in lower phases. Birefringence measurements confirmed two first-order phase transitions at 245.3 K and 231.5 K for pyridinium perchlorate and two continuous phase transitions at 238.7 K and 205.4 K for pyridinium fluoroborate.

Keywords

EN

77.80.Bh

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2004
• Volume: 106
• Issue: 4
• Pages: 529-534

Dates

published

2004-10

received

2004-06-24

Contributors

author

B. Kosturek

• Institute of Experimental Physics, Wrocław University, pl. M. Borna 9, 50-204 Wrocław, Poland

author

Z. Czapla

• Institute of Experimental Physics, Wrocław University, pl. M. Borna 9, 50-204 Wrocław, Poland

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Identifiers

DOI

10.12693/APhysPolA.106.529