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| Autori principali: | , , , |
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| Natura: | Preprint |
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2024
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| Accesso online: | https://arxiv.org/abs/2405.15382 |
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| _version_ | 1866916350228692992 |
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| author | Rindert, Viktor Darakchieva, Vanya Sarkar, Tapati Schubert, Mathias |
| author_facet | Rindert, Viktor Darakchieva, Vanya Sarkar, Tapati Schubert, Mathias |
| contents | In this letter, we derive an expression for magnetic dipole transitions that is analogous to the Lyddane-Sachs-Teller relation for dielectric polar lattice vibrations. We thereby define transverse and longitudinal optical frequencies at which paramagnetic resonance and antiresonance occurs, respectively. The relation found here thus permits non-invasive optical analysis of static magnetization properties in paramagnetic materials. Validated through terahertz electron paramagnetic resonance ellipsometry and superconducting quantum interference device measurements on Iron-doped Gallium Nitride, our findings show very good agreement between theory and experiment. We term the excitations associated with the paramagnetic transitions as paramagnetic polaritons which may find use in future photonic applications |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_15382 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The paramagnetic Lyddane-Sachs-Teller relation Rindert, Viktor Darakchieva, Vanya Sarkar, Tapati Schubert, Mathias Materials Science In this letter, we derive an expression for magnetic dipole transitions that is analogous to the Lyddane-Sachs-Teller relation for dielectric polar lattice vibrations. We thereby define transverse and longitudinal optical frequencies at which paramagnetic resonance and antiresonance occurs, respectively. The relation found here thus permits non-invasive optical analysis of static magnetization properties in paramagnetic materials. Validated through terahertz electron paramagnetic resonance ellipsometry and superconducting quantum interference device measurements on Iron-doped Gallium Nitride, our findings show very good agreement between theory and experiment. We term the excitations associated with the paramagnetic transitions as paramagnetic polaritons which may find use in future photonic applications |
| title | The paramagnetic Lyddane-Sachs-Teller relation |
| topic | Materials Science |
| url | https://arxiv.org/abs/2405.15382 |