Antiferromagnetism in Ni-Based Superconductors

Autor:	Zhou, Xiaorong, Zhang, Xiaowei, Yi, Jiabao, Qin, Peixin, Feng, Zexin, Jiang, Peiheng, Zhong, Zhicheng, Yan, Han, Wang, Xiaoning, Chen, Hongyu, Wu, Haojiang, Zhang, Xin, Meng, Ziang, Yu, Xiaojiang, Breese, Mark B. H., Cao, Jiefeng, Wang, Jingmin, Jiang, Chengbao, Liu, Zhiqi
Rok vydání:	2021
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science Condensed Matter - Strongly Correlated Electrons Physics - Applied Physics
Zdroj:	Adv. Mater. 34, 2106117 (2022)
Druh dokumentu:	Working Paper
DOI:	10.1002/adma.202106117
Popis:	Due to the lack of any magnetic order down to 1.7 K in the parent bulk compound NdNiO2, the recently discovered 9-15 K superconductivity in the infinite-layer Nd0.8Sr0.2NiO2 thin films has provided an exciting playground for unearthing new superconductivity mechanisms. In this letter, we report the successful synthesis of a series of superconducting Nd0.8Sr0.2NiO2 thin films ranging from 8 to 40 nm. We observe the large exchange bias effect between the superconducting Nd0.8Sr0.2NiO2 films and a thin ferromagnetic layer, which suggests the existence of the antiferromagnetic order. Furthermore, the existence of the antiferromagnetic order is evidenced by X-ray magnetic linear dichroism measurements. These experimental results are fundamentally critical for the current field. Comment: 25 pages, 22 figure, 1 table. The manuscript is in press at Advanced Materials
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2110.14915 Zobrazit plný text záznamu View this record from Arxiv