The crystallographic and magnetic properties of LaN5-xMnx with x = 1, 1.5, and 2, have been investigated using x-ray and neutron diffraction, vibrating sample magnetometer and superconducting quantum interference device measurements. All the samples crystallize in the hexagonal CaCu5-type (P6/mmm) structure. Manganese atoms preferentially occupy the 3 g site in the LaNi5 structure. The bulk magnetization of the LaNi5-xMnx powder samples decreases rapidly as nickel is replaced by manganese. A ferrimagnetic model is applied to describe the magnetic structure of the LaNi5-xMnx samples for x = 1.5 and 2. A ferromagnetic model gives the best fit of the neutron diffraction data for the LaNi4Mn sample.
C. Tai et al., "Crystal and Magnetic Structures of LaNi₅₋ₓMnₓ," Journal of Applied Physics, vol. 87, American Institute of Physics (AIP), Jan 2000.
The definitive version is available at https://doi.org/10.1063/1.372823
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© 2000 American Institute of Physics (AIP), All rights reserved.
01 Jan 2000