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VOLUME 61 (1995) | ISSUE 2 |
PAGE 91
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New mechanism for spin relaxation during light scattering
Voitenko V. A.
A theory is derived for the universal relaxation lineshape in quasielastic electron scattering of light by spin-density fluctuations in the multicomponent spin systems in intermetallic actinides with heavy fermions, high-rc superconducting crystals, and heavily doped semiconductors. A new spin relaxation mechanism is proposed. This mechanism provides a physical interpretation of the width of the quasielastic-scattering line, which is independent of the light wave vector. It also explains the high intensity of this line. Possibilities for estimating certain microstructural parameters of intermetallic actinides— the energies of the spin-orbit splitting and of optical phonons—from spectra are discussed. © 1995 American Institute of Physics.
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