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Short- and long-range magnetic order in LaMnAsO
Michael A. McGuire, V. Ovidiu Garlea
The magnetic properties of the layered oxypnictide LaMnAsO have been revisited using neutron scattering and magnetization measurements. The present measurements identify the Néel t…
Anomalous magneto-elastic and charge doping effects in thallium-doped BaFe2As2
A. S. Sefat, L. Li, H. B. Cao +4
Within the BaFe2As2 crystal lattice, we partially substitute thallium for barium and report the effects of interlayer coupling in Ba1-xTlxFe2As2 crystals. We demonstrate the unusua…
Magnetic and structural properties of ferromagnetic Fe5PB2 and Fe5SiB2 and effects of Co and Mn substitutions
Michael A. McGuire, David S. Parker
Crystallographic and magnetic properties of Fe5PB2, Fe4CoPB2, Fe4MnPB2, Fe5SiB2, Fe4CoSiB2, and Fe4MnSiB2 are reported. All adopt the tetragonal Cr5B3 structure-type and are ferrom…
Magnetic structure and phase stability of the van der Waals bonded ferromagnet Fe3-xGeTe2
Andrew F. May, Stuart Calder, Claudia Cantoni +2
The magnetic structure and phase diagram of the layered ferromagnetic compound FeGeTe has been investigated by a combination of synthesis, x-ray and neutron diffraction, hi…
Fragile structural transition in Mo3Sb7
J. -Q. Yan, M. A. McGuire, A. F. May +3
MoSb single crystals lightly doped with Cr, Ru, or Te are studied in order to explore the interplay between superconductivity, magnetism, and the cubic-tetragonal structura…
Role of Magnetism in Superconductivity of BaFe2As2: Study of 5d Au-doped Crystals
Li Li, Huibo B. Cao, Michael A. McGuire +3
We investigate properties of BaFe2As2 (122) single crystals upon gold doping, which is the transition metal with the highest atomic weight. The Au substitution into the FeAs-planes…
Effects of chemical pressure on the magnetic ground states of the osmate double perovskites SrCaCoOsO6 and Ca2CoOsO6
Ryan Morrow, Jiaqiang Yan, Michael A. McGuire +3
The magnetic ground state in the double perovskite system Sr2-xCaxCoOsO6 changes from an antiferromagnet (x = 0), to a spin glass (x = 1), to a ferrimagnet (x = 2) as the Ca conten…