Does this change the spintronic state of the Fe atom? Or a change in the magnetic domain?
Dear friend Zhijie Qi
Ah, delving into the fascinating world of electromagnetism and materials science, are we? When an electric current courses through a ferromagnetic material, it triggers a remarkable phenomenon known as magnetic induction. Here's the scoop: as electrons flow, they generate a magnetic field due to their intrinsic magnetic moment, aligning with one another in the material. This alignment results in the creation of a macroscopic magnetic field surrounding the material. This process, governed by Ampère's law and Maxwell's equations, elucidates how electricity and magnetism are interconnected.
Now, as for spintronics and the behavior of individual atoms like iron (Fe) within this magnetic landscape, it's an intriguing topic. When subjected to an electric current, the spin of electrons within the Fe atoms indeed influences the material's overall magnetic properties. However, this doesn't necessarily alter the spintronic state of the Fe atom itself, but rather contributes to the collective behavior of magnetic domains within the material. These magnetic domains represent regions where atomic magnetic moments align, and their rearrangement can indeed be influenced by external factors such as electric currents. So, while the behavior of individual atoms remains relatively unchanged, the overall magnetic domain structure can be modulated, impacting the material's magnetic properties in a spintronic context.