Zhaoguo Li, Dawei Yan, Zhiqiang Zhan, Jiangshan Luo, Zhiqing Wu, Fan Lei, Yudan He, Lei Jin, Bo Yang, Qiubo Fu
{"title":"γ射线辐照对Cu薄膜电输运特性的影响","authors":"Zhaoguo Li, Dawei Yan, Zhiqiang Zhan, Jiangshan Luo, Zhiqing Wu, Fan Lei, Yudan He, Lei Jin, Bo Yang, Qiubo Fu","doi":"10.1140/epjb/s10051-025-00966-7","DOIUrl":null,"url":null,"abstract":"<div><p>We reported the electrical transport properties of Cu films under γ-ray irradiation. The temperature dependence of resistance curves coincides with each other before and after irradiation when the irradiation dose is <span>\\(\\lesssim 3.6\\times {10}^{6} \\text{rad}(\\text{Si})\\)</span>. The resistance of the irradiated Cu film is greater than that of the non-irradiated film across the whole temperature range when the irradiation dose is <span>\\(\\gtrsim 3.6\\times {10}^{7} \\text{rad}(\\text{Si})\\)</span>. This phenomenon is caused by the enhanced surface oxidation effect induced by γ-ray irradiation, and this mechanism has been confirmed by chemical composition analysis. Furthermore, the electrical transport properties of Cu films with and without polyimide coverage were measured during γ-ray irradiation. The experimental results showed that the bare Cu film undergoes surface oxidation, while the Cu film covered by polyimide does not. These results further validate the γ-irradiation enhanced oxidation mechanism in Cu films.</p><h3>Graphical abstract</h3><p>The resistance of the irradiated Cu film greater than that of the non-irradiated film was observed in the whole temperature range when irradiation dose is larger than a critical dose. The physical mechanism of above phenomenon is ascribed to the enhanced surface oxidation effect induced by γ-ray irradiation. The electrical transport properties of Cu films with and without polyimide coverage were also measured during γ-ray irradiation. The experimental results showed that the bare Cu film undergoes surface oxidation, while the Cu film covered by polyimide does not. These results further validate the γ-irradiation enhanced oxidation mechanism in Cu films.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 7","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"γ-ray irradiation effect on the electrical transport properties of Cu films\",\"authors\":\"Zhaoguo Li, Dawei Yan, Zhiqiang Zhan, Jiangshan Luo, Zhiqing Wu, Fan Lei, Yudan He, Lei Jin, Bo Yang, Qiubo Fu\",\"doi\":\"10.1140/epjb/s10051-025-00966-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We reported the electrical transport properties of Cu films under γ-ray irradiation. The temperature dependence of resistance curves coincides with each other before and after irradiation when the irradiation dose is <span>\\\\(\\\\lesssim 3.6\\\\times {10}^{6} \\\\text{rad}(\\\\text{Si})\\\\)</span>. The resistance of the irradiated Cu film is greater than that of the non-irradiated film across the whole temperature range when the irradiation dose is <span>\\\\(\\\\gtrsim 3.6\\\\times {10}^{7} \\\\text{rad}(\\\\text{Si})\\\\)</span>. This phenomenon is caused by the enhanced surface oxidation effect induced by γ-ray irradiation, and this mechanism has been confirmed by chemical composition analysis. Furthermore, the electrical transport properties of Cu films with and without polyimide coverage were measured during γ-ray irradiation. The experimental results showed that the bare Cu film undergoes surface oxidation, while the Cu film covered by polyimide does not. These results further validate the γ-irradiation enhanced oxidation mechanism in Cu films.</p><h3>Graphical abstract</h3><p>The resistance of the irradiated Cu film greater than that of the non-irradiated film was observed in the whole temperature range when irradiation dose is larger than a critical dose. The physical mechanism of above phenomenon is ascribed to the enhanced surface oxidation effect induced by γ-ray irradiation. The electrical transport properties of Cu films with and without polyimide coverage were also measured during γ-ray irradiation. The experimental results showed that the bare Cu film undergoes surface oxidation, while the Cu film covered by polyimide does not. These results further validate the γ-irradiation enhanced oxidation mechanism in Cu films.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":787,\"journal\":{\"name\":\"The European Physical Journal B\",\"volume\":\"98 7\",\"pages\":\"\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2025-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The European Physical Journal B\",\"FirstCategoryId\":\"4\",\"ListUrlMain\":\"https://link.springer.com/article/10.1140/epjb/s10051-025-00966-7\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, CONDENSED MATTER\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The European Physical Journal B","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1140/epjb/s10051-025-00966-7","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
γ-ray irradiation effect on the electrical transport properties of Cu films
We reported the electrical transport properties of Cu films under γ-ray irradiation. The temperature dependence of resistance curves coincides with each other before and after irradiation when the irradiation dose is \(\lesssim 3.6\times {10}^{6} \text{rad}(\text{Si})\). The resistance of the irradiated Cu film is greater than that of the non-irradiated film across the whole temperature range when the irradiation dose is \(\gtrsim 3.6\times {10}^{7} \text{rad}(\text{Si})\). This phenomenon is caused by the enhanced surface oxidation effect induced by γ-ray irradiation, and this mechanism has been confirmed by chemical composition analysis. Furthermore, the electrical transport properties of Cu films with and without polyimide coverage were measured during γ-ray irradiation. The experimental results showed that the bare Cu film undergoes surface oxidation, while the Cu film covered by polyimide does not. These results further validate the γ-irradiation enhanced oxidation mechanism in Cu films.
Graphical abstract
The resistance of the irradiated Cu film greater than that of the non-irradiated film was observed in the whole temperature range when irradiation dose is larger than a critical dose. The physical mechanism of above phenomenon is ascribed to the enhanced surface oxidation effect induced by γ-ray irradiation. The electrical transport properties of Cu films with and without polyimide coverage were also measured during γ-ray irradiation. The experimental results showed that the bare Cu film undergoes surface oxidation, while the Cu film covered by polyimide does not. These results further validate the γ-irradiation enhanced oxidation mechanism in Cu films.
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