Nonlinear electronic stopping of negatively charged particles in liquid water
We present real-time time-dependent density-functional-theory calculations of the electronic stopping power for negative and positive projectiles (electrons, protons, antiprotons, and muons) moving through liquid water. After correction for finite mass effects, the nonlinear stopping power obtained...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-07-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.033063 |
| _version_ | 1797210433859354624 |
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| author | Natalia E. Koval Fabiana Da Pieve Bin Gu Daniel Muñoz-Santiburcio Jorge Kohanoff Emilio Artacho |
| author_facet | Natalia E. Koval Fabiana Da Pieve Bin Gu Daniel Muñoz-Santiburcio Jorge Kohanoff Emilio Artacho |
| author_sort | Natalia E. Koval |
| collection | DOAJ |
| description | We present real-time time-dependent density-functional-theory calculations of the electronic stopping power for negative and positive projectiles (electrons, protons, antiprotons, and muons) moving through liquid water. After correction for finite mass effects, the nonlinear stopping power obtained in this paper is significantly different from the previously known results from semiempirical calculations based on the dielectric response formalism. Linear-nonlinear discrepancies are found both in the maximum value of the stopping power and the Bragg peak's position. Our results indicate the importance of the nonlinear description of electronic processes, particularly, for electron projectiles, which are modeled here as classical point charges. Our findings also confirm the expectation that the quantum nature of the electron projectile should substantially influence the stopping power around the Bragg peak and below. |
| first_indexed | 2024-04-24T10:10:31Z |
| format | Article |
| id | doaj.art-3dea0bdfa2ba420c90149d93f2ad3f04 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:10:31Z |
| publishDate | 2023-07-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-3dea0bdfa2ba420c90149d93f2ad3f042024-04-12T17:32:52ZengAmerican Physical SocietyPhysical Review Research2643-15642023-07-015303306310.1103/PhysRevResearch.5.033063Nonlinear electronic stopping of negatively charged particles in liquid waterNatalia E. KovalFabiana Da PieveBin GuDaniel Muñoz-SantiburcioJorge KohanoffEmilio ArtachoWe present real-time time-dependent density-functional-theory calculations of the electronic stopping power for negative and positive projectiles (electrons, protons, antiprotons, and muons) moving through liquid water. After correction for finite mass effects, the nonlinear stopping power obtained in this paper is significantly different from the previously known results from semiempirical calculations based on the dielectric response formalism. Linear-nonlinear discrepancies are found both in the maximum value of the stopping power and the Bragg peak's position. Our results indicate the importance of the nonlinear description of electronic processes, particularly, for electron projectiles, which are modeled here as classical point charges. Our findings also confirm the expectation that the quantum nature of the electron projectile should substantially influence the stopping power around the Bragg peak and below.http://doi.org/10.1103/PhysRevResearch.5.033063 |
| spellingShingle | Natalia E. Koval Fabiana Da Pieve Bin Gu Daniel Muñoz-Santiburcio Jorge Kohanoff Emilio Artacho Nonlinear electronic stopping of negatively charged particles in liquid water Physical Review Research |
| title | Nonlinear electronic stopping of negatively charged particles in liquid water |
| title_full | Nonlinear electronic stopping of negatively charged particles in liquid water |
| title_fullStr | Nonlinear electronic stopping of negatively charged particles in liquid water |
| title_full_unstemmed | Nonlinear electronic stopping of negatively charged particles in liquid water |
| title_short | Nonlinear electronic stopping of negatively charged particles in liquid water |
| title_sort | nonlinear electronic stopping of negatively charged particles in liquid water |
| url | http://doi.org/10.1103/PhysRevResearch.5.033063 |
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