Magnetic studies of amorphous NiP alloys

Sputter deposited nanocrystalline Ni and Ni-W films as catalysts for hydrogen evolution

“…Some of the most revealing theoretical and experimental data, concerning the electronic structure of metals and alloys result from the density functional theory calculations [32,33] and the magnetization measurements [34][35][36][37][38]. A somewhat different view from above discussed concepts is offered by the theoretical results calculated by the tight-binding linear muffin-tin-orbital (TM-LMTO), atomic sphere approximation (ASA) method [39] that has been successfully applied to rare earth and transition metals and, in particular, to some alloys of special interest for the HER.…”

RETRACTED: Structure and mechanical properties of Ni–P electrodeposited coatings

“…Ni-P deposits are important materials due to their excellent electrocatalytic activity for hydrogen evolution [1,2], magnetic characteristics [3,4], high microhardness, satisfactory wear and corrosion resistance for the surface finishing of industrial materials [5][6][7][8]. It has been found that the hardness of as-deposited Ni-P alloys greatly depends on the coating microstructure, which is determined by the phosphorus content [9][10][11].…”

Superparamagnetic behavior of rapidly quenched Ni81P19 alloys

“…However, the results are in contradiction with each other. According to [6] of Ni 100Àx P x alloys with 15 < x < 23 in the temperature range from 4.2 to 300 K and in magnetic fields up to 9 kOe was found to differ strongly for x < 17 and x > 17. These different magnetic properties were attributed to changes in the sizes and behaviors of the magnetic inhomogeneities embedded in the Ni-P matrix: for x > 17 they were described as giant-moment paramagnetic clusters, whereas for x < 17 they were instead suggested to form superparamagnetic particles.…”