Structural, magnetic, and electron transport properties of Mn{sub 3−x}Pt{sub x}Sn (x = 0, 0.5, 1) nanomaterials
- Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, Nebraska 68588 (United States)
The structural, magnetic, and electron-transport properties of Mn{sub 3−x}Pt{sub x}Sn (x = 0, 0.5, 1) nanomaterials prepared by arc-melting, melt-spinning, and annealing were investigated. It was found that the hexagonal structure is the most stable structure for Mn{sub 3}Sn and the samples show an antiferromagnetic spin order at room temperature. The Pt-containing samples are mainly tetragonal but contain a small amount of other impurity phases, including hexagonal Mn{sub 3}Sn and Mn{sub 2}Sn. At room temperature, the Pt-containing samples show ferri- or ferromagnetic spin order with a Curie temperature of about 370 K. The measured high-field magnetization and anisotropy constant for Mn{sub 2}PtSn are 405 emu/cm{sup 3} and 2.6 Mergs/cm{sup 3}, respectively. The samples are all highly conducting with metallic electron transport and show a substantial negative magnetoresistance.
- OSTI ID:
- 22273800
- Journal Information:
- Journal of Applied Physics, Vol. 115, Issue 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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