Comment on ‘‘Large magnetoresistance in an amorphous ferromagnetic wire’’
- 1 January 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 51 (1) , 652-653
- https://doi.org/10.1103/physrevb.51.652
Abstract
In a recent paper [Phys. Rev. B 47, 14 233 (1993)], Mandal and Ghatak claimed that a relative change in ac resistance up to 12% by changing the applied field was found in a Co-rich amorphous wire. This large change was ascribed to the giant magnetoresistance effect. We have made both dc and ac four-probe measurements on wires of the same composition under applied fields and no such large change has been observed. We believe that the results commented on reflect the strongly field-dependent self-inductance. Although the reactance at low frequencies is very small compared with the resistance, its effect could be enhanced under some circuit conditions.This publication has 8 references indexed in Scilit:
- Giant magnetoresistance in sputtered and melt-spun alloysJournal of Magnetism and Magnetic Materials, 1993
- Structural relaxation and magnetic properties of Co-rich amorphous wireJournal of Magnetism and Magnetic Materials, 1993
- Local geometry ofions on the potassium sites inPhysical Review B, 1993
- Magneto-inductive effect (MI effect) in amorphous wiresIEEE Transactions on Magnetics, 1992
- Giant magnetoresistance in nonmultilayer magnetic systemsPhysical Review Letters, 1992
- Giant magnetoresistance in heterogeneous Cu-Co alloysPhysical Review Letters, 1992
- Magneto-resistance, stress effects, and a self-similar expansion model for the magnetization process in amorphous wiresIEEE Transactions on Magnetics, 1989
- Giant Magnetoresistance of (001)Fe/(001)Cr Magnetic SuperlatticesPhysical Review Letters, 1988