[20a-A31-1~11] 17.3 Layered materials

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[20a-A31-3] Observation of phase transformation and domain wall dynamics of ferroelectric SnS thin film by POM

〇Satsuki Kitamura¹, Nanae Ryo¹, Nishimura Tomonori¹, Kanahashi Kaito¹, Nagashio Kosuke¹ (1.UTokyo)

Keywords:

SnS,ferroelectric,phase transition

The two-dimensional layered material SnS has an antiferroelectric α phase that is stable at room temperature, a ferroelectric β' phase that is metastable due to the introduction of strain during crystal growth, and a ferroelectric β' phase with increasing symmetry as a high temperature phase. Although temperature control of the ferroelectric domain is important, the phase transition of SnS is poorly understood. In this study, the SnS phase transition was observed using a polarized light microscope with a heating stage to understand the phase transition and the dynamic behavior of the domain walls.