[13a-B407-1~11] 11.2 薄膜，厚膜，テープ作製プロセスおよび結晶成長

[13a-B407-2] 無限層ニッケル酸化物超伝導体

〇(DC)長田 礎^1,2、Wang Bai^1,2、Li Danfeng^1,2、Lee Kyuho^1,2、Harvey Shannon^1,2、Goodge Berit³、Kourkoutis Lena³、Hwang Harold^1,2 (1.スタンフォード大、2.SLAC、3.コーネル大)

キーワード：超伝導、ニッケル酸化物、薄膜

Ever since their discovery, superconductivity in cuprates has motivated the search for materials with analogous electronic or atomic structure [1]. Here we present how soft chemistry approaches can be used to synthesize superconducting infinite layer nickelates from their perovskite precursor phase, using topotactic reactions [2]. We will discuss our preliminary understanding of aspects that are similar and different from the cuprates, as well as initial exploration of the compositional variations accessible in this materials system.

[1] J.G. Bednorz, and K. A. Muller, Z Phys. B64, 189-194 (1986).
[2] D. Li, K. Lee, B. Y. Wang, M. Osada, S. Crossley, H. R. Lee, Y. Cui, Y. Hikita, and H. Y. Hwang, Nature 572, 624-627 (2019).
*Supported by DOE BES MSD (DE-AC02-76SF00515), the Moore Foundation (GBMF4415), and DOD AFOSR (FA 9550-16-1-0305).