Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory
We examine the core-level X-ray photoemission spectroscopy (XPS), X-ray absorption near-edge spectroscopy (XANES) and X-ray emission spectroscopy (XES) in the Falicov-Kimball model by using the exact solution from dynamical mean-field theory. XPS measures the core-hole propagator, XANES measures the...
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| Published in: | Condensed Matter Physics |
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| Date: | 2012 |
| Main Authors: | , |
| Format: | Article |
| Language: | English |
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Інститут фізики конденсованих систем НАН України
2012
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/120307 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory / A.M. Shvaika, J.K. Freericks // Condensed Matter Physics. — 2012. — Т. 15, № 4. — С. 43701:1-10. — Бібліогр.: 22 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862741766135873536 |
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| author | Shvaika, A.M. Freericks, J.K. |
| author_facet | Shvaika, A.M. Freericks, J.K. |
| citation_txt | Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory / A.M. Shvaika, J.K. Freericks // Condensed Matter Physics. — 2012. — Т. 15, № 4. — С. 43701:1-10. — Бібліогр.: 22 назв. — англ. |
| collection | DSpace DC |
| container_title | Condensed Matter Physics |
| description | We examine the core-level X-ray photoemission spectroscopy (XPS), X-ray absorption near-edge spectroscopy (XANES) and X-ray emission spectroscopy (XES) in the Falicov-Kimball model by using the exact solution from dynamical mean-field theory. XPS measures the core-hole propagator, XANES measures the absorption of X-rays when the core electron is excited to an unoccupied electronic state of the solid and is not emitted, and XES measures the spectra of light emitted as electrons fill the core-hole state created via some form of X-ray excitation. These three spectra are closely related to one another and display orthogonality catastrophe behavior at T=0. We show an efficient way of evaluating these spectra at finite temperature, with a primary focus on the details of XANES.
Дослiджуються рентґенiвськi спектри фотоелектронної емiсiї (XPS), передкрайового поглинання (XANES) та фотоемiсiї (XES) для моделi Фалiкова-Кiмбала, використовуючи точнi розв’язки теорiї динамiчного середнього поля. XPS вимiрює пропагатор дiрки йонного залишку, XANES — поглинання X-променiв, коли електрон йонного залишку збуджується в незаповнену електронну зону твердого тiла, i XES — спектр випромiненого свiтла при заповненнi електроном наперед створеної X-променями дiрки йонного залишку.
Всi цi три типи спектрiв тiсно пов’язанi мiж собою i проявляють особливостi типу катастрофи ортогональ-ностi при T = 0. Показано, як ефективно розраховувати такi спектри для скiнчених температур, зокрема з детальнiшим наголосом на спектри XANES.
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| first_indexed | 2025-12-07T20:21:39Z |
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| id | nasplib_isofts_kiev_ua-123456789-120307 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| language | English |
| last_indexed | 2025-12-07T20:21:39Z |
| publishDate | 2012 |
| publisher | Інститут фізики конденсованих систем НАН України |
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| spelling | Shvaika, A.M. Freericks, J.K. 2017-06-11T15:00:59Z 2017-06-11T15:00:59Z 2012 Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory / A.M. Shvaika, J.K. Freericks // Condensed Matter Physics. — 2012. — Т. 15, № 4. — С. 43701:1-10. — Бібліогр.: 22 назв. — англ. PACS: 71.10.-w, 71.27.+a, 71.30.+h, 02.30.Rz DOI:10.5488/CMP.15.43701 arXiv:1207.2744 https://nasplib.isofts.kiev.ua/handle/123456789/120307 We examine the core-level X-ray photoemission spectroscopy (XPS), X-ray absorption near-edge spectroscopy (XANES) and X-ray emission spectroscopy (XES) in the Falicov-Kimball model by using the exact solution from dynamical mean-field theory. XPS measures the core-hole propagator, XANES measures the absorption of X-rays when the core electron is excited to an unoccupied electronic state of the solid and is not emitted, and XES measures the spectra of light emitted as electrons fill the core-hole state created via some form of X-ray excitation. These three spectra are closely related to one another and display orthogonality catastrophe behavior at T=0. We show an efficient way of evaluating these spectra at finite temperature, with a primary focus on the details of XANES. Дослiджуються рентґенiвськi спектри фотоелектронної емiсiї (XPS), передкрайового поглинання (XANES) та фотоемiсiї (XES) для моделi Фалiкова-Кiмбала, використовуючи точнi розв’язки теорiї динамiчного середнього поля. XPS вимiрює пропагатор дiрки йонного залишку, XANES — поглинання X-променiв, коли електрон йонного залишку збуджується в незаповнену електронну зону твердого тiла, i XES — спектр випромiненого свiтла при заповненнi електроном наперед створеної X-променями дiрки йонного залишку.
 Всi цi три типи спектрiв тiсно пов’язанi мiж собою i проявляють особливостi типу катастрофи ортогональ-ностi при T = 0. Показано, як ефективно розраховувати такi спектри для скiнчених температур, зокрема з детальнiшим наголосом на спектри XANES. J.K.F. was supported by the Department of Energy under grant number DE-FG02-08ER46542. The US-Ukraine collaboration was supported by the Department of Energy under grant number DE-SC0007091.
 J.K.F. also acknowledges support from the McDevitt bequest at Georgetown. en Інститут фізики конденсованих систем НАН України Condensed Matter Physics Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory Точний розв’язок теорiї динамiчного середнього поля для рiзноманiтних дослiдiв з X-променями в моделi Фалiкова-Кiмбала Article published earlier |
| spellingShingle | Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory Shvaika, A.M. Freericks, J.K. |
| title | Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory |
| title_alt | Точний розв’язок теорiї динамiчного середнього поля для рiзноманiтних дослiдiв з X-променями в моделi Фалiкова-Кiмбала |
| title_full | Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory |
| title_fullStr | Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory |
| title_full_unstemmed | Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory |
| title_short | Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory |
| title_sort | exact solution of a variety of x-ray probes in the falicov-kimball model with dynamical mean-field theory |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/120307 |
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