d-f exchange resonance and the "j polaron" in metallic gadolinium
Beznosov A. B., Gnezdilov V. P., Eremenko V. V.
The temperature dependences of dynamic conductivity spectra of single-crystalline gadolinium in the region of the d-fexchange resonance are investigated experimentally and theoretically. Agreement with experiment is achieved by introducing into the theory quasilocalized electronic states of the d type with individual quantization axes at each atom: j polarons.