[8p-C212-1~16] 3.1 Basic optics and frontier of optics

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8p-C212-10] Raman optical activity in ferroaxial CoTiO₃

〇Gakuto Kusuno¹, Takeshi Hayashida², Takayuki Nagai³, Tsuyoshi Kimura³, Takuya Satoh^1,4 (1.Science Tokyo, 2.FELIX Lab., Radboud Univ., 3.Univ. Tokyo, 4.QuaRC, Inst. Mol. Sci)

Keywords:

Raman scattering,Raman optical activity,ferroaxial

We observed the circular-polarization dependence of the Raman scattering intensity of phonons in the ferroaxial material CoTiO₃. This phenomenon is referred to as Raman optical activity (ROA). The magnitude of ROA in CoTiO₃ is remarkably large, similar to that reported in another ferroaxial material. It is also two orders of magnitude larger than typical values observed in chiral materials.