Meissner Effect and Nonreciprocal Charge Transport in Superconducting 1T-CrTe2/FeTe Heterostructures

Autor:	Yan, Zi-Jie, Chan, Ying-Ting, Yuan, Wei, Wang, Annie G., Yi, Hemian, Wang, Zihao, Zhou, Lingjie, Rong, Hongtao, Zhuo, Deyi, Wang, Ke, Singleton, John, Winter, Laurel E., Wu, Weida, Chang, Cui-Zu
Rok vydání:	2024
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
Popis:	Interface-induced superconductivity has recently been achieved by stacking a magnetic topological insulator layer on an antiferromagnetic FeTe layer. However, the mechanism driving this emergent superconductivity remains unclear. Here, we employ molecular beam epitaxy to grow a 1T-CrTe2 layer, a two-dimensional ferromagnet with Curie temperature up to room temperature, on a FeTe layer. These 1T-CrTe2/FeTe heterostructures show superconductivity with a critical temperature of ~12 K. Through magnetic force microscopy measurements, we observe the Meissner effect on the surface of the 1T-CrTe2 layer. Our electrical transport measurements reveal that the 1T-CrTe2/FeTe heterostructures exhibit nonreciprocal charge transport behavior, characterized by a large magneto-chiral anisotropy coefficient. The enhanced nonreciprocal charge transport in 1T-CrTe2/FeTe heterostructures provides a promising platform for exploring the magnetically controllable superconducting diode effect. Comment: 24 pages, 4 figures, comments are welcome
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2412.09354 Zobrazit plný text záznamu View this record from Arxiv