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Magnetotransport and magnetic properties of amorphous NdNi<sub>5</sub> thin films

Magnetotransport and magnetic properties of amorphous NdNi5 thin films

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CIRILLO, Carla, Carlo BARONE, Harry BRADSHAW, Francesca URBAN, Angelo DI BERNARDO, Costantino MAURO, Jason W. A. ROBINSON, Sergio PAGANO, Carmine ATTANASIO, 2020. Magnetotransport and magnetic properties of amorphous NdNi5 thin films. In: Scientific Reports. Springer Nature. 10, 13693. eISSN 2045-2322. Available under: doi: 10.1038/s41598-020-70646-2

@article{Cirillo2020-08-13Magne-50938, title={Magnetotransport and magnetic properties of amorphous NdNi5 thin films}, year={2020}, doi={10.1038/s41598-020-70646-2}, volume={10}, journal={Scientific Reports}, author={Cirillo, Carla and Barone, Carlo and Bradshaw, Harry and Urban, Francesca and Di Bernardo, Angelo and Mauro, Costantino and Robinson, Jason W. A. and Pagano, Sergio and Attanasio, Carmine}, note={Article Number: 13693} }

Bradshaw, Harry 2020-08-13 eng Barone, Carlo Magnetotransport and magnetic properties of amorphous NdNi<sub>5</sub> thin films Di Bernardo, Angelo Cirillo, Carla 2020-09-22T07:51:23Z Attanasio, Carmine Bradshaw, Harry Barone, Carlo Di Bernardo, Angelo Cirillo, Carla Mauro, Costantino Attanasio, Carmine Mauro, Costantino Robinson, Jason W. A. 2020-09-22T07:51:23Z Robinson, Jason W. A. NdNi<sub>5</sub> is an intermetallic compound with a bulk Curie temperature (T<sub>Curie</sub>) of 6–13 K. While existing studies have focused on NdNi<sub>5</sub> crystals, amorphous thin-films of NdNi<sub>5</sub> are potentially important since they would be magnetically soft without magnetocrystalline anisotropy, meaning that small external magnetic fields NdNi<sub>5</sub> thin-films with a thickness in the 5–200 nm range, deposited by DC magnetron sputtering onto Si(100). Films are amorphous with a weak temperature-dependent resistivity with values ranging between 150 and 300 μΩ cm. By means of noise spectroscopy, by analyzing the time-dependence of fluctuation-induced voltages, it is found that at low temperatures the resistance fluctuations are due to the Kondo effect. Volume magnetometry indicates T<sub>Curie</sub> =70 K with a magnetic coercive field of 30 mT at 5 K for a 125-nm-thick film. The results are promising for the development of Ferromagnet(F)/Superconductor(S)/Ferromagnet(F) pseudo spin-valve devices based on amorphous NdNi<sub>5</sub> thin films. Urban, Francesca Pagano, Sergio Urban, Francesca Pagano, Sergio

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