B. Rellinghaus, O. Dmitrieva, M. Liedke, J. Fassbender
{"title":"离子辐照下FePt纳米颗粒的结构相变","authors":"B. Rellinghaus, O. Dmitrieva, M. Liedke, J. Fassbender","doi":"10.1109/INTMAG.2005.1463521","DOIUrl":null,"url":null,"abstract":"In the present study, post-deposition 5 keV He irradiation has been performed on such gas phase prepared FePt nanoparticles. Structural characterization of the samples is carried out by means of high resolution transmission electron microscopy (HRTEM). The power spectra obtained by Fourier transform of the original images clearly show that the particles are multiply twinned and of icosahedral structure but after irradiation, the particles are now of single crystal fcc structure and their mean diameter is reduced. This size reduction is ascribed to irradiation induced sputtering of the particles.","PeriodicalId":273174,"journal":{"name":"INTERMAG Asia 2005. Digests of the IEEE International Magnetics Conference, 2005.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structural phase transformation of FePt nanoparticles by ion irradiation\",\"authors\":\"B. Rellinghaus, O. Dmitrieva, M. Liedke, J. Fassbender\",\"doi\":\"10.1109/INTMAG.2005.1463521\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In the present study, post-deposition 5 keV He irradiation has been performed on such gas phase prepared FePt nanoparticles. Structural characterization of the samples is carried out by means of high resolution transmission electron microscopy (HRTEM). The power spectra obtained by Fourier transform of the original images clearly show that the particles are multiply twinned and of icosahedral structure but after irradiation, the particles are now of single crystal fcc structure and their mean diameter is reduced. This size reduction is ascribed to irradiation induced sputtering of the particles.\",\"PeriodicalId\":273174,\"journal\":{\"name\":\"INTERMAG Asia 2005. Digests of the IEEE International Magnetics Conference, 2005.\",\"volume\":\"2 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2005-04-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"INTERMAG Asia 2005. Digests of the IEEE International Magnetics Conference, 2005.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/INTMAG.2005.1463521\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"INTERMAG Asia 2005. Digests of the IEEE International Magnetics Conference, 2005.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/INTMAG.2005.1463521","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Structural phase transformation of FePt nanoparticles by ion irradiation
In the present study, post-deposition 5 keV He irradiation has been performed on such gas phase prepared FePt nanoparticles. Structural characterization of the samples is carried out by means of high resolution transmission electron microscopy (HRTEM). The power spectra obtained by Fourier transform of the original images clearly show that the particles are multiply twinned and of icosahedral structure but after irradiation, the particles are now of single crystal fcc structure and their mean diameter is reduced. This size reduction is ascribed to irradiation induced sputtering of the particles.
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