Resonant Raman measurements have been performed on the 1S yellow orthoexciton in Cu 2 O in high magnetic field. At zero field, the ⌫ 3 − , ⌫ 4 − , and ⌫ 5 − phonon replicas are visible. In magnetic field we observe a characteristic fine structure in the optical phonon replicas. It is explained by longitudinal and transversal acoustic phonon scattering of orthoexcitons between different Zeeman components. We derive in detail the polarization dependence of the phonon sidebands for these exciton components. For …
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