Ferrimagnetic Spin-Wave Resonance and Superconductivity in Carbon Nanotubes Incorporated in Diamond Matrix

The phenomenon of ferrimagnetic spin-wave resonance [uncompensated antiferromagnetic spin-wave resonance] has been detected for the first time. It has been observed in carbon nanotubes, produced by high-energy ion beam modification of diamond single crystals in 〈100〉 direction. Peculiarities of spin-wave resonance observed allow to insist on the formation in given nanotubes of s + -superconductivity at room temperature, coexisting with uncompensated antiferromagnetic ordering.