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Line shift and broadening of pure electronic optical
Thermal line shift and broadening experimental details
25 K0e external 2ZJS absorption agreement anisotropy antiferromagnetic phase approximation band of RbMnF3 Bohr magneton Brillouin zone calculations Chapter cm"1 line contributions cubic field curves effects electronic optical transitions energy separation equal to zero erature exchange field exchange interaction exciton expansivity shift external magnetic field ferromagnetic g-factor ground and excited Hamiltonian hot band indicates K0e external magnetic line of MnF2 line shift Lorentzian low temperatures magnetic dipole magnon density magnon dispersion magnon energy magnon scattering magnon sideband matrix elements Mn ion MnFp neutron scattering observed obtained opposite sublattice order terms order theory parameters phonon pure electronic line pure electronic optical pure electronic transition Raman scattering RbMnF renormalization Sharp line structure shift and broadening shown in figure spectra spectrum spin alignment spin forbidden spin wave splitting sublattice magnons temperature dependence theory Thermal behavior Thermal shift transition of RbMnF3 unit cell values zone edge magnons