| 000 | 03124nlm1a2200505 4500 | ||
|---|---|---|---|
| 001 | 669369 | ||
| 005 | 20231030042220.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\40609 | ||
| 035 | _aRU\TPU\network\40591 | ||
| 090 | _a669369 | ||
| 100 | _a20230410a2022 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aCH | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aElectron Correlations in Sequential Two-Photon Double Ionization of an Ar Atom _fB. M. Lagutin, I. D. Petrov, V. L. Sukhorukov [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 25 tit.] | ||
| 330 | _aSequential 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 | _tAtoms | ||
| 463 |
_tVol. 10, iss. 4 _v[139, 12 p.] _d2022 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _asequential photoionization | |
| 610 | 1 | _adouble ionization | |
| 610 | 1 | _aphotoelectron spectra | |
| 610 | 1 | _aargon | |
| 610 | 1 | _amany-electron correlations | |
| 610 | 1 | _afree-electron laser | |
| 610 | 1 | _aфотоионизация | |
| 610 | 1 | _aфотоэлектронные спектры | |
| 610 | 1 | _aаргон | |
| 701 | 1 |
_aLagutin _bB. M. _gBoris Mikhaylovich |
|
| 701 | 1 |
_aPetrov _bI. D. _gIvan Dmitrievich |
|
| 701 | 1 |
_aSukhorukov _bV. L. _gViktor Lvovich |
|
| 701 | 1 |
_aKilin _bV. A. _cmathematician _cProfessor of Tomsk Polytechnic University, doctor of physical and mathematical Sciences _f1949- _gViktor Andreevich _2stltpush _3(RuTPU)RU\TPU\pers\35524 |
|
| 701 | 1 |
_aNovikovsky _bN. M. _gNikolay Mikhaylovich |
|
| 701 | 1 |
_aDemekhin _bF. V. _gFilipp Vladimirovich |
|
| 701 | 1 |
_aEhresmann _bA. _gArno |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bШкола базовой инженерной подготовки _bОтделение математики и информатики _h8031 _2stltpush _3(RuTPU)RU\TPU\col\23555 |
| 801 | 2 |
_aRU _b63413507 _c20230410 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.3390/atoms10040139 | |
| 942 | _cCF | ||