Abstract
The paraelectric resonance spectrum of non-central impurity ions situated in crystal fields of icosahedral symmetry is predicted. A multiwell potential is considered that corresponds to the displacement of the ions from the center of symmetry toward the vertices of the icosahedron, the faces of a dodecahedron, and the pentagonal faces of a fullerene molecule. The effective Hamiltonian of endohedral complexes in external electric fields with arbitrary orientation is obtained, its eigenvalues are found, and the line intensities of different transitions between the tunnelling levels are calculated.
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Fiz. Tverd. Tela (St. Petersburg) 39, 1693–1698 (September 1997)
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Roitsin, A.B., Artamonov, L.V. & Klimov, A.A. Paraelectric resonance of centers with icosahedral symmetry. Phys. Solid State 39, 1512–1517 (1997). https://doi.org/10.1134/1.1130125
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DOI: https://doi.org/10.1134/1.1130125