Crystal and Magnetic Structures of LaNi₅₋ₓMnₓ

Author

Chiu-Ying Tai
G. K. Marasinghe
Oran Allan Pringle, Missouri University of Science and TechnologyFollow
William Joseph James, Missouri University of Science and Technology
Muguo Chen
William B. Yelon, Missouri University of Science and TechnologyFollow
I. Dubenko
Naushad Ali
Ph. I'Héritier

Abstract

The crystallographic and magnetic properties of LaN_5-xMn_x 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 LaNi_5-xMn_x powder samples decreases rapidly as nickel is replaced by manganese. A ferrimagnetic model is applied to describe the magnetic structure of the LaNi_5-xMn_x samples for x = 1.5 and 2. A ferromagnetic model gives the best fit of the neutron diffraction data for the LaNi₄Mn sample.

Recommended Citation

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

Department(s)

Physics

Second Department

Chemistry

International Standard Serial Number (ISSN)

0021-8979

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2000 American Institute of Physics (AIP), All rights reserved.

Publication Date

01 Jan 2000