Re-entrance of resistivity due to the interplay of superconductivity and magnetism in $\ce{Eu_{0.73}Ca_{0.27}(Fe_{0.87}Co_{0.13})2As2}$

Autor:	Tran, Lan Maria, Zaleski, Andrzej J., Bukowski, Zbigniew
Rok vydání:	2023
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Materials Science Condensed Matter - Strongly Correlated Electrons
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.109.014509
Popis:	By simultaneous Co and Ca-doping we were able to obtain an $\ce{EuFe2As2}$-based compound with superconductivity appearing above the antiferromagnetic order of $\ce{Eu^{2+}}$ magnetic moments. However, as soon as the antiferromagnetic order appears a re-entrance behavior is observed \textemdash{} instead of zero resistivity and diamagnetic signal down to the temperature of \unit[2]{K}. By investigating magnetization, ac susceptibility and electrical transport properties of $\ce{Eu_{0.73}Ca_{0.27}(Fe_{0.87}Co_{0.13})2As2}$ and comparing them to previously studied M\"ossbauer effect and neutron scattering measurements of this and similar compounds an explanation of such behavior is proposed. Comment: Main paper of 9 pages with 11 figures with Supplementary Materials (6 pages with 10 figures)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2309.04308 Zobrazit plný text záznamu View this record from Arxiv