Manifestation of a tunneling effect in the electron spin resonance of small potassium particles
Cherkasov F. G. , Vitol A. Ya., Galyautdinov M. F.
Measurements of the electron spin resonance of small potassium particles reveal consequences of a quantum-size effect in the electron energy spectrum. They also reveal a temperature dependence of the width of the resonant line which is unusual for such particles. This temperature dependence is attributed to a tunneling of electrons between particles.