Two-spinon and orbital excitations of the spin-Peierls system TiOCl
We combine high-resolution resonant inelastic x-ray scattering with cluster calculations utilizing a recently derived effective magnetic scattering operator to analyze the polarization, excitation energy, and momentum-dependent excitation spectrum of the low-dimensional quantum magnet TiOCl in the r...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
1 September 2011
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| In: |
Physical review letters
Year: 2011, Volume: 107, Issue: 10 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.107.107402 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevLett.107.107402 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.107.107402 
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| Author Notes: | S. Glawion, J. Heidler, M.W. Haverkort, L.C. Duda, T. Schmitt, V.N. Strocov, C. Monney, K.J. Zhou, A. Ruff, M. Sing, and R. Claessen |
| Summary: | We combine high-resolution resonant inelastic x-ray scattering with cluster calculations utilizing a recently derived effective magnetic scattering operator to analyze the polarization, excitation energy, and momentum-dependent excitation spectrum of the low-dimensional quantum magnet TiOCl in the range expected for orbital and magnetic excitations (0-2.5 eV). Ti 3d orbital excitations yield complete information on the temperature-dependent crystal-field splitting. In the spin-Peierls phase we observe a dispersive two-spinon excitation and estimate the inter- and intradimer magnetic exchange coupling from a comparison to cluster calculations. |
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| Item Description: | Gesehen am 03.11.2017 |
| Physical Description: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.107.107402 |