Ferromagnetic-resonance induced electromotive forces in Ni81Fe19|pFe19|p-type diamond

• Origins of DC electromotive forces in NiFe|pNiFe|p-type diamond is evaluated.
• The signal takes its maximum around the ferromagnetic resonant frequency of the NiFe.
• The signals originate from DC spin-related electromotive forces.

We report on direct-current (DC) electromotive forces (emfs) in a nickel-iron alloy (Ni81Fe19)|p(Ni81Fe19)|p-type diamond under the ferromagnetic resonance of the Ni81Fe19 layer at room temperature. The observed DC emfs take its maximum around the ferromagnetic resonant frequency of the Ni81Fe19, and their signs are reversed by reversing the direction of an externally-applied magnetic field; it shows that the observed DC emfs are spin-related emfs.