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Coupling of Spin Waves with Charge- and Spin Density Excitations in Spin-Polarized Quantum Wells
Physical Review B
  • D C Marinescu, Clemson University
  • J J Quinn, University of Tennessee
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The American Physical Society
The 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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