Antiferromagnetic order in CaK(Fe[1-x]Ni[x])4As4 and its interplay with superconductivity

• Published in: arXiv.org
• Main Authors: Kreyssig, A, Wilde, J M, Böhmer, A E, Tian, W, Meier, W R, Li, Bing, Ueland, B G, Xu, Mingyu, Bud'ko, S L, Canfield, P C, McQueeney, R J, Goldman, A I
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 04.06.2018
• Subjects: Antiferromagnetism; Arsenides; Crystal structure; Crystals; Fermi surfaces; Iron; Magnetic moments; Magnetism; Nesting; Neutron diffraction; Nickel; Order parameters; Physics - Superconductivity; Single crystals; Superconductivity; Symmetry

The magnetic order in CaK(Fe[1-x]Ni[x])4As4 (1144) single crystals (x = 0.051 and 0.033) has been studied by neutron diffraction. We observe magnetic Bragg peaks associated to the same propagation vectors as found for the collinear stripe antiferromagnetic (AFM) order in the related BaFe2As2 (122) c...