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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| Дата: | 2012 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2012
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120307 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
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irk-123456789-1203072017-06-12T03:04:50Z 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. 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. 2012 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/120307 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| 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. |
| format |
Article |
| author |
Shvaika, A.M. Freericks, J.K. |
| spellingShingle |
Shvaika, A.M. Freericks, J.K. Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory Condensed Matter Physics |
| author_facet |
Shvaika, A.M. Freericks, J.K. |
| author_sort |
Shvaika, A.M. |
| title |
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_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_sort |
exact solution of a variety of x-ray probes in the falicov-kimball model with dynamical mean-field theory |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2012 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/120307 |
| 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. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
AT shvaikaam exactsolutionofavarietyofxrayprobesinthefalicovkimballmodelwithdynamicalmeanfieldtheory AT freericksjk exactsolutionofavarietyofxrayprobesinthefalicovkimballmodelwithdynamicalmeanfieldtheory |
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2023-10-18T20:36:41Z |
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2023-10-18T20:36:41Z |
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1796150653890854912 |