Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 41, Issue 21, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/41/21/215002
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Funding
- National Key Project for Basic Research [2005CB623605]
- National Natural Science Foundation of China [50701022, 50831006]
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Ni(44.1)Mn(44.2)Sn(11.7) ribbons were prepared by melt spinning. After heat treatment, the martensitic transformation ( MT) temperature increases obviously in the annealed ribbons. Large magnetoresistance (MR) was observed in these ribbons. Under the field of 50 kOe, the maximum values of negative MR were 22% for melt-spun ribbons at 240K and 38% for annealed ribbons at 268 K, respectively. The annealing effect on MT and MR, together with the origin of the large MR, has been discussed in this paper.
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