Friedel Oscillations and He-He Interactions in Mo
Helium ions implanted into metals can form ordered bubbles that are isomorphic to the host lattice. While long-range elastic interactions are generally believed to drive bubble superlattice formation, the interactions between individual helium solutes are not yet fully understood. Our first-principl...
| Published in: | Crystals |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-09-01
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| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4352/14/10/834 |
| _version_ | 1849988886046965760 |
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| author | Xuepeng Shen Enzhi Liang Qian Zhan Wei Wang Wen Tong Geng |
| author_facet | Xuepeng Shen Enzhi Liang Qian Zhan Wei Wang Wen Tong Geng |
| author_sort | Xuepeng Shen |
| collection | DOAJ |
| container_title | Crystals |
| description | Helium ions implanted into metals can form ordered bubbles that are isomorphic to the host lattice. While long-range elastic interactions are generally believed to drive bubble superlattice formation, the interactions between individual helium solutes are not yet fully understood. Our first-principles calculations reveal that in molybdenum, Friedel oscillations induced by individual helium atoms generate potential barriers and wells that influence helium pairing and clustering at short He-He distances. These repulsive and attractive interactions at high concentrations provide thermodynamic driving forces that align randomly distributed helium atoms into Mo-He superlattices. Friedel oscillations may have broad impacts on solute–solute interactions in alloys. |
| format | Article |
| id | doaj-art-920c19fd584f4b978653e04bed397294 |
| institution | Directory of Open Access Journals |
| issn | 2073-4352 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| spelling | doaj-art-920c19fd584f4b978653e04bed3972942025-08-20T00:54:34ZengMDPI AGCrystals2073-43522024-09-01141083410.3390/cryst14100834Friedel Oscillations and He-He Interactions in MoXuepeng Shen0Enzhi Liang1Qian Zhan2Wei Wang3Wen Tong Geng4Research Department, Ningxia Normal University, Guyuan 756000, ChinaShenzhen Menpad Technology Group Company Limited, Shenzhen 518000, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Electrical and Information Engineering, North Minzu University, Yinchuan 750021, ChinaDepartment of Physics, Zhejiang Normal University, Jinhua 321004, ChinaHelium ions implanted into metals can form ordered bubbles that are isomorphic to the host lattice. While long-range elastic interactions are generally believed to drive bubble superlattice formation, the interactions between individual helium solutes are not yet fully understood. Our first-principles calculations reveal that in molybdenum, Friedel oscillations induced by individual helium atoms generate potential barriers and wells that influence helium pairing and clustering at short He-He distances. These repulsive and attractive interactions at high concentrations provide thermodynamic driving forces that align randomly distributed helium atoms into Mo-He superlattices. Friedel oscillations may have broad impacts on solute–solute interactions in alloys.https://www.mdpi.com/2073-4352/14/10/834Friedel oscillationshelium irradiationmolybdenumfirst-principlessolute–solute interactions |
| spellingShingle | Xuepeng Shen Enzhi Liang Qian Zhan Wei Wang Wen Tong Geng Friedel Oscillations and He-He Interactions in Mo Friedel oscillations helium irradiation molybdenum first-principles solute–solute interactions |
| title | Friedel Oscillations and He-He Interactions in Mo |
| title_full | Friedel Oscillations and He-He Interactions in Mo |
| title_fullStr | Friedel Oscillations and He-He Interactions in Mo |
| title_full_unstemmed | Friedel Oscillations and He-He Interactions in Mo |
| title_short | Friedel Oscillations and He-He Interactions in Mo |
| title_sort | friedel oscillations and he he interactions in mo |
| topic | Friedel oscillations helium irradiation molybdenum first-principles solute–solute interactions |
| url | https://www.mdpi.com/2073-4352/14/10/834 |
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