{"title":"x射线发射光谱中的磁线性二色性:Yb3 Fe5 O12中的Yb","authors":"F. Groot, M. Krisch, F. Sette, J. Vogel","doi":"10.1103/PHYSREVB.62.379","DOIUrl":null,"url":null,"abstract":"A magnetic linear dichroism MLD effect of up to 5% has been observed in the 2p 1/2 4d x-ray emission \nspectrum of Yb in Yb 3 Fe 5 O 12 . The spectral shape is well reproduced with an atomic multiplet calculation of \nthe 4d to 2p decay. It is shown that the details of the spectral shapes are determined by the 4d4 f exchange \ninteraction. While the integrated intensity of the MLD effect is zero, the magnitude of the effect is a direct \nmeasure of the 4 f magnetic moment of Yb. The technique is applicable to all rare-earth and transition-metal \nsystems (probing the 3d magnetic moment). With respect to x-ray-absorption magnetic circular dichroism it \npossesses the advantage that (i) hard x rays are involved and (ii) no circular polarization is needed. Therefore \nall complications related to electron detection, soft x-ray experiments, and circular polarization disappear. \nPotential applications include the study of ~buried! magnetic systems in situ, at high pressures, varying (high) \nmagnetic fields, and varying temperatures.","PeriodicalId":50986,"journal":{"name":"Catalysis Reviews-Science and Engineering","volume":null,"pages":null},"PeriodicalIF":9.3000,"publicationDate":"2000-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Magnetic linear dichroism in x-ray emission spectroscopy: Yb in Yb3 Fe5 O12\",\"authors\":\"F. Groot, M. Krisch, F. Sette, J. Vogel\",\"doi\":\"10.1103/PHYSREVB.62.379\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A magnetic linear dichroism MLD effect of up to 5% has been observed in the 2p 1/2 4d x-ray emission \\nspectrum of Yb in Yb 3 Fe 5 O 12 . The spectral shape is well reproduced with an atomic multiplet calculation of \\nthe 4d to 2p decay. It is shown that the details of the spectral shapes are determined by the 4d4 f exchange \\ninteraction. While the integrated intensity of the MLD effect is zero, the magnitude of the effect is a direct \\nmeasure of the 4 f magnetic moment of Yb. The technique is applicable to all rare-earth and transition-metal \\nsystems (probing the 3d magnetic moment). With respect to x-ray-absorption magnetic circular dichroism it \\npossesses the advantage that (i) hard x rays are involved and (ii) no circular polarization is needed. Therefore \\nall complications related to electron detection, soft x-ray experiments, and circular polarization disappear. \\nPotential applications include the study of ~buried! magnetic systems in situ, at high pressures, varying (high) \\nmagnetic fields, and varying temperatures.\",\"PeriodicalId\":50986,\"journal\":{\"name\":\"Catalysis Reviews-Science and Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.3000,\"publicationDate\":\"2000-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis Reviews-Science and Engineering\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1103/PHYSREVB.62.379\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Reviews-Science and Engineering","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1103/PHYSREVB.62.379","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Magnetic linear dichroism in x-ray emission spectroscopy: Yb in Yb3 Fe5 O12
A magnetic linear dichroism MLD effect of up to 5% has been observed in the 2p 1/2 4d x-ray emission
spectrum of Yb in Yb 3 Fe 5 O 12 . The spectral shape is well reproduced with an atomic multiplet calculation of
the 4d to 2p decay. It is shown that the details of the spectral shapes are determined by the 4d4 f exchange
interaction. While the integrated intensity of the MLD effect is zero, the magnitude of the effect is a direct
measure of the 4 f magnetic moment of Yb. The technique is applicable to all rare-earth and transition-metal
systems (probing the 3d magnetic moment). With respect to x-ray-absorption magnetic circular dichroism it
possesses the advantage that (i) hard x rays are involved and (ii) no circular polarization is needed. Therefore
all complications related to electron detection, soft x-ray experiments, and circular polarization disappear.
Potential applications include the study of ~buried! magnetic systems in situ, at high pressures, varying (high)
magnetic fields, and varying temperatures.
期刊介绍:
Catalysis Reviews is dedicated to fostering interdisciplinary perspectives in catalytic science and engineering, catering to a global audience of industrial and academic researchers. This journal serves as a bridge between the realms of heterogeneous, homogeneous, and bio-catalysis, providing a crucial and critical evaluation of the current state of catalytic science and engineering. Published topics encompass advances in technology and theory, engineering and chemical aspects of catalytic reactions, reactor design, computer models, analytical tools, and statistical evaluations.