Optical, x-ray and DSC measurements on N(CH3)4HSO4

Rivera, Jean-Pierre; Speziali, N. L.; Berger, H.; Arend, H.; Schmid, Hans

doi:10.1080/00150199008224639

Scientific article

English

Optical, x-ray and DSC measurements on N(CH₃)₄HSO₄

ContributorsRivera, Jean-Pierre; Speziali, N. L.; Berger, H.; Arend, H.; Schmid, Hans

Published inFerroelectrics, vol. 105, p. 183-188

Publication date1990

Abstract

X-ray diffraction measurements on single crystals of N(CH3)4HSO4 have shown the following sequence of phases: orthorhombic, normal .tautm. Ti = 235K .tautm. orthorhombic, incommensurate .tautm. Tc = 202K .tautm. monoclinic, commensurate. DSC and birefringence measurements show a second order phase transition at Ti and a first order one at Tc.

Keywords

Birefringence (in tetramethylammonium acid sulfate crystals)

Affiliation entities

Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée

Citation (ISO format)

RIVERA, Jean-Pierre et al. Optical, x-ray and DSC measurements on N(CH₃)₄HSO₄. In: Ferroelectrics, 1990, vol. 105, p. 183–188. doi: 10.1080/00150199008224639

Article (Published version)

Identifiers

PID : unige:32595
DOI : 10.1080/00150199008224639

Journal ISSN0015-0193

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Optical, x-ray and DSC measurements on N(CH3)4HSO4

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Optical, x-ray and DSC measurements on N(CH₃)₄HSO₄