Abstract
In this paper we describe the magnetoresitive behaviour of ballistic magnetic contacts electrodeposited in nonmagnetic electrodes. We show large magnteoresistive values, up to 400% at room temperature at low applied magnetic fields (25Oe), with many repetitive magnetoresistive loops that could be used for future large integration (Terabits/inch2) in magnetic recording processes. In addition, we analyse the variation of the resistance of the contact under an applied magnetic field from the point of view of possible magnetostrictive effects that may modify the contact. Moreover, it is shown that the magnetic field applied to the systems during electrodeposition can change the morphology and structure of the deposits in a subtle way. In particular, the magnetoresistance of the magnetic deposits gives rise to distinct arboreous-dendritic morphologies. This phenomenon parallels many processes found in nature.
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García, N., Wang, H., Cheng, H., Guerrero, C., Nikolic, N.D., Papageorgopoulos, A.C. (2004). Magnetoresistance and Magnetostriction in Magnetic Contacts. In: Aktaş, B., Tagirov, L.R., Mikailov, F. (eds) Nanostructured Magnetic Materials and their Applications. NATO Science Series, vol 143. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-2200-5_29
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DOI: https://doi.org/10.1007/978-1-4020-2200-5_29
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