Control of magnetism in dilute magnetic semiconductor (Ga,Mn)As films by surface decoration of molecules

Control of magnetism in dilute magnetic semiconductor (Ga,Mn)As films by surface decoration of molecules

Blog Article

The responses of magnetic moments to external stimuli such as magnetic-field, heat, light and electric-field have been utilized to manipulate the magnetism in magnetic semiconductors, with many of the novel ideas applied even to ferromagnetic metals.Here, we review a new experimental Baking Sheet development on the control of magnetism in (Ga,Mn)As thin films by surface decoration of organic molecules: Molecules deposited on the surface of (Ga,Mn)As thin films are shown to be capable of significantly modulating their saturation magnetization and Curie temperature.These phenomena are shown to originate from the copyright-mediated ferromagnetism in (Ga,Mn)As and the surface Recoil Pads molecules acting as acceptors or donors depending on their highest occupied molecular orbitals, resembling the charge transfer mechanism in a pn junction in which the equilibrium state is reached on the alignment of Fermi levels.