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Despite being widely acclaimed for its high radiation resistance, the exact effects induced by ionization are still hard to predict due to the complex phase\u2010transition diagrams and defect creation\u2010annihilation dynamics associated with group\u2010III nitrides. Here, the Two\u2010Temperature Model, Molecular Dynamics simulations and Transmission Electron Microscopy, are employed to study the interaction of Swift Heavy Ions with GaN at the atomic level. The simulations reveal a high propensity of GaN to recrystallize the region melted by the impinging ion leading to high thresholds for permanent track formation. Although the effect exists in all studied electronic energy loss regimes, its efficiency is reduced with increasing electronic energy loss, in particular when there is dissociation of the material and subsequent formation of N<jats:sub>2<\/jats:sub> bubbles. The recrystallization is also hampered near the surface where voids and pits are prominent. The exceptional agreement between the simulated and experimental results establishes the applicability of the model to examine the entire electronic energy loss spectrum. Furthermore, the model supports an empirical relation between the interaction cross sections\u00a0(namely for melting and amorphization) and the electronic energy\u00a0loss.<\/jats:p>","DOI":"10.1002\/smll.202102235","type":"journal-article","created":{"date-parts":[[2022,10,31]],"date-time":"2022-10-31T03:25:31Z","timestamp":1667186731000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Examining Different Regimes of Ionization\u2010Induced Damage in GaN Through Atomistic Simulations"],"prefix":"10.1002","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0389-6143","authenticated-orcid":false,"given":"Miguel C.","family":"Sequeira","sequence":"first","affiliation":[{"name":"IBC Helmholtz\u2010Zentrum Dresden\u2010Rossendorf  Dresden Germany"},{"name":"IPFN Instituto Superior T\u00e9cnico  Campus Tecnol\u00f3gico e Nuclear Lisbon Portugal"}]},{"given":"Flyura","family":"Djurabekova","sequence":"additional","affiliation":[{"name":"Department of Physics University of Helsinki  Helsinki Finland"}]},{"given":"Kai","family":"Nordlund","sequence":"additional","affiliation":[{"name":"Department of Physics University of Helsinki  Helsinki Finland"}]},{"given":"Jean\u2010Gabriel","family":"Mattei","sequence":"additional","affiliation":[{"name":"CIMAP Normandie University  CEA, CNRS, UNICAEN, ENSICAEN\u2010BP5133 Caen Cedex 5 France"}]},{"given":"Isabelle","family":"Monnet","sequence":"additional","affiliation":[{"name":"CIMAP Normandie University  CEA, CNRS, UNICAEN, ENSICAEN\u2010BP5133 Caen Cedex 5 France"}]},{"given":"Clara","family":"Grygiel","sequence":"additional","affiliation":[{"name":"CIMAP Normandie University  CEA, CNRS, UNICAEN, ENSICAEN\u2010BP5133 Caen Cedex 5 France"}]},{"given":"Eduardo","family":"Alves","sequence":"additional","affiliation":[{"name":"IPFN Instituto Superior T\u00e9cnico  Campus Tecnol\u00f3gico e Nuclear Lisbon Portugal"}]},{"given":"Katharina","family":"Lorenz","sequence":"additional","affiliation":[{"name":"IPFN Instituto Superior T\u00e9cnico  Campus Tecnol\u00f3gico e Nuclear Lisbon Portugal"},{"name":"INESC MN  Rua Alves Redol 9 Lisbon 1000\u2010029 Portugal"}]}],"member":"311","published-online":{"date-parts":[[2022,10,30]]},"reference":[{"key":"e_1_2_8_1_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-662-04156-7"},{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/TMTT.2012.2187535"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1149\/2.0251602jss"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1109\/JPROC.2007.911060"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mee.2017.11.021"},{"key":"e_1_2_8_6_1","first-page":"1","volume":"29","author":"Glavin N. 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