Electron Correlations in Sequential Two-Photon Double Ionization of an Ar Atom; Atoms; Vol. 10, iss. 4
| Parent link: | Atoms Vol. 10, iss. 4.— 2022.— [139, 12 p.] |
|---|---|
| مؤلف مشترك: | |
| مؤلفون آخرون: | , , , , , , |
| الملخص: | Title screen Sequential two-photon ionization is a process that is experimentally accessible due to the use of new free-electron laser sources for excitation. For the prototypical rare Ar gas atoms, a photoelectron spectrum (PES) corresponding to the second step of the sequential two-photon double ionization (2PDIII) at a photon excitation energy of 65.3 eV was studied theoretically with a focus on the consequences of electron correlations in the considered process. The calculation predicts many intense lines at low photoelectron energies, which cannot be explained on the basis of a one-electron approximation. The processes that lead to the appearance of these lines include many-electron correlations, either in the first or second step of photoionization. A significant fraction of the intensity of the low-energy part of PES is associated with the Auger decay of the excited states formed at the second step of 2PDI. The shape of the low-energy part of the 2PDIII PES is expected to be dependent on both the energy of photon excitations and the flux of the exciting beam. |
| اللغة: | الإنجليزية |
| منشور في: |
2022
|
| الموضوعات: | |
| الوصول للمادة أونلاين: | https://doi.org/10.3390/atoms10040139 |
| التنسيق: | الكتروني فصل الكتاب |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669369 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 669369 | ||
| 005 | 20250211145147.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\40609 | ||
| 035 | |a RU\TPU\network\40591 | ||
| 090 | |a 669369 | ||
| 100 | |a 20230410d2022 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 102 | |a CH | ||
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Electron Correlations in Sequential Two-Photon Double Ionization of an Ar Atom |f B. M. Lagutin, I. D. Petrov, V. L. Sukhorukov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 25 tit.] | ||
| 330 | |a Sequential two-photon ionization is a process that is experimentally accessible due to the use of new free-electron laser sources for excitation. For the prototypical rare Ar gas atoms, a photoelectron spectrum (PES) corresponding to the second step of the sequential two-photon double ionization (2PDIII) at a photon excitation energy of 65.3 eV was studied theoretically with a focus on the consequences of electron correlations in the considered process. The calculation predicts many intense lines at low photoelectron energies, which cannot be explained on the basis of a one-electron approximation. The processes that lead to the appearance of these lines include many-electron correlations, either in the first or second step of photoionization. A significant fraction of the intensity of the low-energy part of PES is associated with the Auger decay of the excited states formed at the second step of 2PDI. The shape of the low-energy part of the 2PDIII PES is expected to be dependent on both the energy of photon excitations and the flux of the exciting beam. | ||
| 461 | |t Atoms | ||
| 463 | |t Vol. 10, iss. 4 |v [139, 12 p.] |d 2022 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a sequential photoionization | |
| 610 | 1 | |a double ionization | |
| 610 | 1 | |a photoelectron spectra | |
| 610 | 1 | |a argon | |
| 610 | 1 | |a many-electron correlations | |
| 610 | 1 | |a free-electron laser | |
| 610 | 1 | |a фотоионизация | |
| 610 | 1 | |a фотоэлектронные спектры | |
| 610 | 1 | |a аргон | |
| 701 | 1 | |a Lagutin |b B. M. |g Boris Mikhaylovich | |
| 701 | 1 | |a Petrov |b I. D. |g Ivan Dmitrievich | |
| 701 | 1 | |a Sukhorukov |b V. L. |g Viktor Lvovich | |
| 701 | 1 | |a Kilin |b V. A. |c mathematician |c Professor of Tomsk Polytechnic University, doctor of physical and mathematical Sciences |f 1949- |g Viktor Andreevich |3 (RuTPU)RU\TPU\pers\35524 |9 18706 | |
| 701 | 1 | |a Novikovsky |b N. M. |g Nikolay Mikhaylovich | |
| 701 | 1 | |a Demekhin |b F. V. |g Filipp Vladimirovich | |
| 701 | 1 | |a Ehresmann |b A. |g Arno | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Школа базовой инженерной подготовки |b Отделение математики и информатики |3 (RuTPU)RU\TPU\col\23555 |
| 801 | 0 | |a RU |b 63413507 |c 20230410 |g RCR | |
| 856 | 4 | |u https://doi.org/10.3390/atoms10040139 | |
| 942 | |c CF | ||