{"title":"玻态PdUSi合金的光学反射率","authors":"R. Lapka, G. Leemann, H.-J. Güntherodt","doi":"10.1016/0025-5416(88)90347-3","DOIUrl":null,"url":null,"abstract":"<div><p>Optical reflectivity measurements of several PdUSi alloys are presented and their dependence on the uranium concentration in the range between 0 and 60 at. % is studied. The effects of the U 5f band, together with the change from the 5f<sup>2</sup> to the 5f<sup>3</sup> electron configuration (starting between 6.6 and 20 at. % U), and of the changing valence bandwidth on adding uranium are discussed. In addition, the glassy and icosahedral phases of Pd<sub>60</sub>U<sub>20</sub>Si<sub>20</sub> are compared. For the icosahedral phase, a more prominent contribution of the U 5f states to the valence band as well as the onset of crystalline effects are observed.</p></div>","PeriodicalId":100890,"journal":{"name":"Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1988-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0025-5416(88)90347-3","citationCount":"2","resultStr":"{\"title\":\"Optical reflectivity of glassy PdUSi alloys\",\"authors\":\"R. Lapka, G. Leemann, H.-J. Güntherodt\",\"doi\":\"10.1016/0025-5416(88)90347-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Optical reflectivity measurements of several PdUSi alloys are presented and their dependence on the uranium concentration in the range between 0 and 60 at. % is studied. The effects of the U 5f band, together with the change from the 5f<sup>2</sup> to the 5f<sup>3</sup> electron configuration (starting between 6.6 and 20 at. % U), and of the changing valence bandwidth on adding uranium are discussed. In addition, the glassy and icosahedral phases of Pd<sub>60</sub>U<sub>20</sub>Si<sub>20</sub> are compared. For the icosahedral phase, a more prominent contribution of the U 5f states to the valence band as well as the onset of crystalline effects are observed.</p></div>\",\"PeriodicalId\":100890,\"journal\":{\"name\":\"Materials Science and Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0025-5416(88)90347-3\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Science and Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0025541688903473\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science and Engineering","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0025541688903473","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Optical reflectivity measurements of several PdUSi alloys are presented and their dependence on the uranium concentration in the range between 0 and 60 at. % is studied. The effects of the U 5f band, together with the change from the 5f2 to the 5f3 electron configuration (starting between 6.6 and 20 at. % U), and of the changing valence bandwidth on adding uranium are discussed. In addition, the glassy and icosahedral phases of Pd60U20Si20 are compared. For the icosahedral phase, a more prominent contribution of the U 5f states to the valence band as well as the onset of crystalline effects are observed.