skip to main content

SciTech ConnectSciTech Connect

Title: Structural, magnetic, and electron transport properties of Mn{sub 3−x}Pt{sub x}Sn (x = 0, 0.5, 1) nanomaterials

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.
Authors:
; ;  [1] ;  [2] ;  [3] ; ;  [3] ;  [2]
  1. Department of Physics, South Dakota State University, Brookings, South Dakota 57007 (United States)
  2. (United States)
  3. Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, Nebraska 68588 (United States)
Publication Date:
OSTI Identifier:
22273800
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE; ANISOTROPY; ANNEALING; ANTIFERROMAGNETISM; CURIE POINT; ELECTRONS; FERROMAGNETISM; INTERMETALLIC COMPOUNDS; MAGNETIZATION; MAGNETORESISTANCE; MANGANESE; MELTING; NANOSTRUCTURES; PLATINUM; SPIN; TEMPERATURE RANGE 0273-0400 K; TIN