MULTIPLE RESONANT RAMAN SPIN-FLIP PHONON SCATTERING AND 29 CM-1 PHONON TRANSPORT IN EXCITED RUBY IN A MAGNETIC FIELD A. A. Kaplyanskii, S. A. Basoon et V. L. ShekhtmanJ. Phys. Colloques, 42 C6 (1981) C6-462-C6-464DOI: https://doi.org/10.1051/jphyscol:19816134