Two-magnon bound states in a system of coupled electronic and nuclear spins |
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| Authors: | G Georgiev I Gochev K Grozdev |
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| Institution: | (1) Paisii Hilendarski University, Plovdiv, 24 Zar Assen Street, 4000 Plovdiv, Bulgaria;(2) Institute of Solid State Physics, Bulgarian Academy of Sciences, Sofia;(3) Kliment Ohridski University, Sofia |
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| Abstract: | Two-particle complexes in ferromagnets with hyperfine electronic-nuclear coupling have been studied. The secular equation has been obtained and analysed (with numerical methods as well) in the middle and in the end of the Brillouin zone for 1- and 3-dimensional lattices (of s.c. structure). The existence of new types of complexes ( nuclear-nuclear and electronic-nuclear) in strongly anisotropic systems has been established. |
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