Investigation of the Ferroelectric to the Antiferroelectric Transition in LiNH4SO4 by the ESR of · NH3

Shu Fei Tsai, Jiang-Tsu Yu

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The electron spin resonance (ESR) of the NH3+ free radical has been used to investigate the ferroelectric to the antiferroelectric transition in LiNH4SO4 crystals. A sharp transition at 286 K was detected by ESR in the form of line-splitting. The NH3+ free radical in the ferroelectric phase splits into two inequivalent species with different reorientational characteristics below the transition temperature. Twinning was simultaneously detected at the transition.

Original languageEnglish
Pages (from-to)2540-2549
Number of pages10
JournalJournal of the Physical Society of Japan
Issue number7
Publication statusPublished - 1988 Jan 1


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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