Quantum wells based on magnetic-dipolar-mode oscillations in disk ferromagnetic particles

Department of Electrical and Computer Engineering Ben Gurion University of the Negev - Beer Sheva, 84105, Israel

Received: 22 July 2003
Accepted: 6 October 2003

Abstract

We show that magnetic-dipolar-mode oscillations in a normally magnetized ferromagnetic disk have typical atomic properties like discrete-energy levels. Because of the discrete-energy eigenstates of such oscillations resulting from structural confinement, one can describe the oscillating system as a collective motion of quasiparticles —the light magnons. We calculate the energy levels in a magnetic quantum well and the effective masses of the light magnons.