Coupling of Spin Waves with Charge- and Spin Density Excitations in Spin-Polarized Quantum WellsPhysical Review B
PublisherThe American Physical Society
AbstractThe coupling of spin waves with charge- and spin-density waves is shown to be induced by a spin-dependent interaction in a quantum well, which is spin polarized by a dc magnetic ﬁeld at an angle to the symmetry axis. The mixing of the plasmonic and magnonic modes, which occurs for both intra- and intersubband transitions, depends on the coupling constant of the spin-spin interaction, the tilt angle , and the initial spin polarization . ͓S0163-1829͑99͒08247-8͔
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