Charged domain walls and crystallographic microstructures in hybrid improper ferroelectric Ca3 1 xSrxTi2O7

Hiroshi Nakajima, Koji Shigematsu, Yoichi Horibe, Shigeo Mori, Yasukazu Murakami

Research output: Contribution to journalArticle

Abstract

The charged domain walls in ferroelectric materials exhibit intriguing physical properties. We examine herein the charged-domain-wall structures in Ca3 1 xSrxTi2O7 using transmission electron microscopy. When viewed along the [001] axis, the wavy charged domain walls are observed over a wide range (>5 µm). In contrast, short charged-domain-wall fragments (from 10 to 200 nm long) occur because they are intercepted and truncated by the conventional 180° domain walls. These results reveal the unusual charged domain structures in Ca3 1 xSrxTi2O7 and will be useful for understanding their formation process.

Original languageEnglish
Pages (from-to)2103-2108
Number of pages6
JournalMaterials Transactions
Volume60
Issue number10
DOIs
Publication statusPublished - Jan 1 2019

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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