title: Magnetic Properties of CeMn2-xCoxGe4O12(0 ≤ x ≤ 2) as a Function of Temperature and Magnetic Field.
abstract: Polycrystalline samples, prepared by a solid-state route, of compositions in the solid solution CeMn2-xCoxGe4O12(x = 0.0, 0.5, 1.0, 1.5, and 2.0) were characterized by X-ray diffraction, neutron diffraction, and magnetometry. They adopt space group P4/nbm with a ≈ 9.78 and c ≈ 4.85 Å and become anti-ferromagnetic (x = 0.0, 1.5, 2.0) or weakly ferromagnetic (x = 0.5, 1.0) at 4.2 ≤ T ≤ 7.6 K. The ordered moments lie along [001] when x = 0.0 and in the (001) plane otherwise. The unit cell doubles along [001] when x = 1.5 and 2.0 order anti-ferromagnetically, but the doubling is lost when a first-order metamagnetic transition to weak ferromagnetism occurs on the application of a 10 kOe magnetic field. The ordered moments at 1.6 K for x = 0.0 and 2.0 are 4.61(2) and 2.58(2) μB, respectively; the corresponding effective moments in the paramagnetic phase are 5.91 and 5.36 μB.
authors.affiliation: Inorganic Chemistry Laboratory, Oxford University , South Parks Road, Oxford OX1 3QR, U. K.
authors.forename: Diming
authors.initials: D
authors.lastname: Xu
authors.affiliation: Australian Nuclear Science and Technology Organisation , Lucas Heights, NSW 2234, Australia.|School of Chemistry, The University of Sydney , Sydney, NSW 2006, Australia.
authors.forename: Maxim
authors.identifier: http://orcid.org/0000-0003-2366-5809
authors.initials: M
authors.lastname: Avdeev
authors.affiliation: Inorganic Chemistry Laboratory, Oxford University , South Parks Road, Oxford OX1 3QR, U. K.
authors.forename: Peter D
authors.identifier: http://orcid.org/0000-0003-0955-7676
authors.initials: PD
authors.lastname: Battle
authors.affiliation: School of Materials Science and Engineering, Zhejiang University , 38 Zheda Road, Hangzhou 310027, China.
authors.forename: Xiao-Qiang
authors.initials: XQ
authors.lastname: Liu