[7p-N202-1~14] 6.4 Thin films and New materials

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[7p-N202-9] A study on high-energy resolution fluorescence-detected soft X-ray absorption spectroscopy using a superconducting detector

〇(B)Kota Naito¹, Nobuo Nakajima², Shintaro Yasui³, Shigetomo Shiki⁴ (1.Dep. of Sci., Hiroshima Univ, 2.Grad. Sch. of Adv. Sci. & Eng., Hiroshima Univ., 3.ZC lab, Science Tokyo, 4.AIST)

Keywords:

ferroelectric thin film,superconducting X-ray detector,electronic state of anions

Thanks to its high energy resolution, the superconducting X-ray detector can be applied to absorption spectroscopy measurements in the soft X-ray region, in the same way as a silicon drift detector in hard X-ray region. In this study, we aimed to clarify the anisotropy of the oxygen 2p electronic state in SrTiO3 thin films, which are expected to exhibit ferroelectricity. HERFD-XAS measurements in the soft X-ray region were performed using the superconducting detector. Through the incident angle dependence on a single crystal and thin films, it was revealed that lattice distortion causes changes in the orbital hybridization between Ti and oxygen.