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Ballistic magnetoresistance in transition-metal nanocontacts: The case of iron

AuthorsGarcía García, Nicolás; Muñoz, Manuel; Zhao, Y. W.
Issue Date1-May-2000
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 76(18): 2586 (2000)
AbstractThis letter shows that the ballistic magnetoresistance of Fe at room temperature and low magnetic fields is ten times smaller than for Ni and Co. The results are well explained by theory that provides a global understanding for 3d transition metals because, for Fe, the ratio of majority to minority spins at Fermi level is much smaller than for Ni and Co. The data indicate that conduction is carried out by majority d electrons in the case of Fe, in contrast to what happens for Ni and Co.
Description2 pages, 2 figures.
Publisher version (URL)http://dx.doi.org/10.1063/1.126416
Appears in Collections:(LFSPyN) Artículos
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