[17a-C31-1~11] 11.1 Fundamental properties

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17a-C31-4] Preparation of Nickelate Thin films by PLD Utilizing a Nd:YAG Laser and Topochemical Reduction Effects

〇(M1)Kota Morita¹, Ryuto Yamashita¹, Reina Tsuchihashi¹, Hirotaka Okabe^2,3, Jumpei Nakamura³, Hideki Kuwahara¹, Ryosuke Kadono³, Tadashi Adachi¹ (1.Sophia Univ., 2.IMR, Tohoku Univ., 3.KEK-IMSS)

Keywords:

Infinite-layer nickelate,Pulsed laser deposition,Topochemical reduction

To elucidate the relationship between spin fluctuations and superconductivity in infinite-layer nickelates using ultra-slow muons, thin films of infinite-layer La_1-xSr_xNiO₂ (x = 0, 0.2) were synthesized by pulsed laser deposition (PLD) utilizing a Nd:YAG laser, which is simpler than conventional excimer lasers, and topochemical reduction using CaH₂ as the reducing agent. For both x = 0 and 0.2 samples, temperature-dependent metallic electrical resistivity was observed in a certain temperature range, suggesting high-quality infinite-layer nikelate samples obtained using a Nd:YAG laser.