TY - JOUR A1 - Costas, Andreea A1 - Florica, Camelia A1 - Matei, Elena A1 - Toimil-Molares, Maria Eugenia A1 - Stavarache, Ionel A1 - Kuncser, Andrei A1 - Kuncser, Victor A1 - Enculescu, Ionut T1 - Magnetism and magnetoresistance of single Ni–Cu alloy nanowires JF - Beilstein Journal of Nanotechnology PY - 2018/// VL - 9 SP - 2345 EP - 2355 SN - 2190-4286 DO - 10.3762/bjnano.9.219 PB - Beilstein-Institut JA - Beilstein J. Nanotechnol. UR - https://doi.org/10.3762/bjnano.9.219 KW - nanowires KW - magnetic properties KW - magnetoresistance N2 - Arrays of magnetic Ni–Cu alloy nanowires with different compositions were prepared by a template-replication technique using electrochemical deposition into polycarbonate nanoporous membranes. Photolithography was employed for obtaining interdigitated metallic electrode systems of Ti/Au onto SiO2/Si substrates and subsequent electron beam lithography was used for contacting single nanowires in order to investigate their galvano-magnetic properties. The results of the magnetoresistance measurements made on single Ni–Cu alloy nanowires of different compositions have been reported and discussed in detail. A direct methodology for transforming the magnetoresistance data into the corresponding magnetic hysteresis loops was proposed, opening new possibilities for an easy magnetic investigation of single magnetic nanowires in the peculiar cases of Stoner–Wohlfarth-like magnetization reversal mechanisms. The magnetic parameters of single Ni–Cu nanowires of different Ni content have been estimated and discussed by the interpretation of the as derived magnetic hysteresis loops via micromagnetic modeling. It has been theoretically proven that the proposed methodology can be applied over a large range of nanowire diameters if the measurement geometry is suitably chosen. ER -