2016 Fiscal Year Final Research Report
Magnetic excitations probed by the resonant inelastic x-ray scattering in strongly correlated electron systems
| Project/Area Number |
25400338
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Keywords | 共鳴非弾性Ｘ線散乱 / 強相関電子系 / Ｌ吸収端 / スピン軌道相互作用 / 磁気励起 / エクシトン励起 |
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| Outline of Final Research Achievements |
We have analyzed the spectra at L edge in the resonant inelastic x-ray scattering (RIXS). First we have analyzed the spectra in undoped cupper compounds. Having taken account of broken symmetry effects, we have successfully reproduced the spectra, which arises from not only the one-magnon excitation but also the two-magnon excitation. Subsequently we have analyzed the RIXS spectra in Sr2IrO4, Sr3Ir2O7, Na2IrO3, CaIrO3, where Ir ions suffer the strong spin-orbit interaction. Based on microscopic models of electronic structures, we have calculated the spectra within the strong coupling and the weak coupling expansions. Our results explain well the origin of the experimental spectra.
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| Free Research Field |
物理学
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