X-ray magnetic circular dichroism and resonant inelastic X-ray scattering explained: role of many-body correlation and mixed-valence fluctuations
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| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866913604336353280 |
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| author | Kim, Beom Hyun Lee, Sang-Jun Huang, H. Lu, D. Hong, S. S. Lee, S. Abbamonte, P. Joe, Y. I. Szypryt, P. Doriese, W. B. Swetz, D. S. Ullom, J. N. Kao, C. -C. Lee, J. -S. Kim, Bongjae |
| author_facet | Kim, Beom Hyun Lee, Sang-Jun Huang, H. Lu, D. Hong, S. S. Lee, S. Abbamonte, P. Joe, Y. I. Szypryt, P. Doriese, W. B. Swetz, D. S. Ullom, J. N. Kao, C. -C. Lee, J. -S. Kim, Bongjae |
| contents | X-ray magnetic circular dichroism (XMCD) and resonant inelastic X-ray scattering with magnetic circular dichroism (RIXS-MCD) provide unparalleled insights into the electronic and magnetic dynamics of complex materials. Yet, their spectra remain challenging to interpret due to intricate many-body interactions. Here, we introduce a theoretical framework based on the Anderson impurity model, fully incorporating charge transfer (CT) and core-valence exchange correlation (CVEC) effects. Using epitaxial ferromagnetic La0.7Sr0.3MnO3 film as a model system, we capture elusive spectral features, demonstrating the necessity of CT inclusion for resolving XMCD subpeaks and revealing the profound impact of CVEC on RIXS-MCD spectra. Our approach not only successfully mirrors experimental results but also opens new avenues for exploring spin, orbital, and charge excitations in 3d transition metals and other correlated materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_07204 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | X-ray magnetic circular dichroism and resonant inelastic X-ray scattering explained: role of many-body correlation and mixed-valence fluctuations Kim, Beom Hyun Lee, Sang-Jun Huang, H. Lu, D. Hong, S. S. Lee, S. Abbamonte, P. Joe, Y. I. Szypryt, P. Doriese, W. B. Swetz, D. S. Ullom, J. N. Kao, C. -C. Lee, J. -S. Kim, Bongjae Strongly Correlated Electrons Materials Science X-ray magnetic circular dichroism (XMCD) and resonant inelastic X-ray scattering with magnetic circular dichroism (RIXS-MCD) provide unparalleled insights into the electronic and magnetic dynamics of complex materials. Yet, their spectra remain challenging to interpret due to intricate many-body interactions. Here, we introduce a theoretical framework based on the Anderson impurity model, fully incorporating charge transfer (CT) and core-valence exchange correlation (CVEC) effects. Using epitaxial ferromagnetic La0.7Sr0.3MnO3 film as a model system, we capture elusive spectral features, demonstrating the necessity of CT inclusion for resolving XMCD subpeaks and revealing the profound impact of CVEC on RIXS-MCD spectra. Our approach not only successfully mirrors experimental results but also opens new avenues for exploring spin, orbital, and charge excitations in 3d transition metals and other correlated materials. |
| title | X-ray magnetic circular dichroism and resonant inelastic X-ray scattering explained: role of many-body correlation and mixed-valence fluctuations |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2412.07204 |