Semiconducting and magnetic properties of FeS-derived compounds (C2H8N2)xFeS and Ax(C2H8N2)yFeS (A = Li, Na).

Autor: Zheng, Hui, Ding, Changhao, Xu, Han-Shu, Tang, Lulu, Liu, Huimin, Wei, Lianwei, Tang, Kaibin
Předmět:
Zdroj: Dalton Transactions: An International Journal of Inorganic Chemistry; 10/7/2021, Vol. 50 Issue 37, p13052-13058, 7p
Abstrakt: Several FeS-derived intercalated compounds (C2H8N2)xFeS and Ax(C2H8N2)yFeS (A = Li, Na) were successfully synthesized via a novel ammonothermal method. The powder X-ray diffraction (XRD) measurements reveal that the FeS intercalated samples have the same tetragonal crystal structure as the parent FeS. After intercalation, these three as-synthesized samples do not show superconductor behavior, which is confirmed by the magnetization and the electrical resistivity measurements. (C2H8N2)xFeS exhibits paramagnetic semiconductor behavior, while the newly synthesized Ax(C2H8N2)yFeS (A = Li, Na) shows antiferromagnetic semiconductor behavior. The absence of superconductivity in these FeS-derived compounds should be closely related to the iron vacancies in the FeS layer. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index