@article{33934,
  author = {S Jin and L.H Chen and T.H Tiefel and M Eibschutz and Ramamoorthy Ramesh},
  title = {Modulation-induced giant magnetoresistance in a spinodally decomposed Cu-Ni-Fe alloy},
  abstract = {Giant magnetoresistance in a spinodally decomposed, bulk 60 Cu-20 Ni-20 Fe alloy is reported. An annealed, quenched, and heat-treated sample with a compositional modulation of ≲50 Å size exhibits a ΔR/R value as high as 9% at 4.2 K. Optimization of the ferromagnetic phase particle geometry through a combination of spinodal decomposition and uniaxial deformation led to a locally multilayered, superlattice-like structure and a dramatic increase in room-temperature magnetoresistance from ∼0.6 to ∼5%. This improvement in magnetoresistance is accompanied by a decrease in coercivity from ∼620 Oe in the fully decomposed material to ∼45 Oe in the optimized structure. Interestingly, this structure no longer exhibits the commonly observed temperature-dependent behavior of ΔR/R increasing at low temperatures, but rather shows a decrease at 4.2 K.},
  year = {1994},
  journal = {Journal of Applied Physics},
  volume = {75},
  number = {10},
  pages = {6915-6917},
  issn = {00218979},
  doi = {10.1063/1.356779},
  note = {cited By 5},
  language = {eng},
}