When a piece of ferromagnetic material reduces its size to nanometer scale, its magnetic
ordering will be altered and its magnetic properties will be consequently changed, because …

Cobalt (Co) is one of the most important 3d transition metal elements used in the
development of magnetic materials, especially in hard magnetic materials, from the early Co …

Brown's theorem on coercivity of ferromagnetic materials has predicted that the coercivity
level is substantially higher than in practice for all the materials studied in experiments in the …

According to the potential–pH diagram for the Co 2+–citrate–H 2 O system, Co 2+–citrate
complexes are stable at a pH ranging from 3 to 9. Titration curves and ultraviolet–visible …

In this study, we synthesize highly crystalline cobalt NWs in the form of powder and ordered
nanomagnets using a solvothermal technique. We study morphological, structural, and …

Permanent magnets are important materials widely used in advanced technologies
including electric vehicles, windmills, memory devices, magnetic levitation transportation …

Since the declaration of rare earths as ''critical materials''by the US Department of Energy in
2011, the design of rare earth-free permanent magnets has been an actively focused area of …

The energy demand for the current society calls for reliable and sustainable energy
resources. Solar energy is one such source with availability in abundance worldwide. Also …