Large negative magnetoresistance in quaternary Heusler alloy Ni 50Mn 8Fe 17Ga 25 melt-spun ribbons

Z. H. Liu*, H. Liu, X. X. Zhang, X. K. Zhang, John Q. Xiao, Z. Y. Zhu, X. F. Dai, G. D. Liu, J. L. Chen, G. H. Wu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

Quaternary Heusler alloy Ni50 Mn8 Fe17 Ga25 ribbons have been prepared by the melt-spun method. The ribbons exhibit large negative magnetoresistance (MR) {= [R (H) -R (0)] R (0) } over a wide temperature region, particularly in the region during the martensitic phase transformation. The MR decreases significantly after annealing. The large MR is isotropic and is mainly attributed to the local magnetic disorders, magnetic clusters, and heterogeneity. The maximum MR at martensitic transformation may be due to the redistribution of electrons and the increase of phase boundary scattering. This feature adds a useful functionality to the already interesting Heusler alloys.

Original languageEnglish (US)
Article number182507
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number18
DOIs
StatePublished - May 2 2005
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint

Dive into the research topics of 'Large negative magnetoresistance in quaternary Heusler alloy Ni <sub>50</sub>Mn <sub>8</sub>Fe <sub>17</sub>Ga <sub>25</sub> melt-spun ribbons'. Together they form a unique fingerprint.

Cite this