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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1107/S160057751500363X
|2 doi
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|a pubmed24n1346.xml
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|a eng
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1 |
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|a Strocov, Vladimir N
|e verfasserin
|4 aut
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|a Concept of a multichannel spin-resolving electron analyzer based on Mott scattering
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|c 2015
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 14.08.2015
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|a Date Revised 25.03.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The concept of a multichannel electron spin detector based on optical imaging principles and Mott scattering (iMott) is presented. A multichannel electron image produced by a standard angle-resolving (photo) electron analyzer or microscope is re-imaged by an electrostatic lens at an accelerating voltage of 40 kV onto the Au target. Quasi-elastic electrons bearing spin asymmetry of the Mott scattering are imaged by magnetic lenses onto position-sensitive electron CCDs whose differential signals yield the multichannel spin asymmetry image. Fundamental advantages of this concept include acceptance of inherently divergent electron sources from the electron analyzer or microscope focal plane as well as small aberrations achieved by virtue of high accelerating voltages, as demonstrated by extensive ray-tracing analysis. The efficiency gain compared with the single-channel Mott detector can be a factor of more than 10(4) which opens new prospects of spin-resolved spectroscopies in application not only to standard bulk and surface systems (Rashba effect, topological insulators, etc.) but also to buried heterostructures. The simultaneous spin detection combined with fast CCD readout enables efficient use of the iMott detectors at X-ray free-electron laser facilities
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Mott scattering
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|a X-ray free-electron lasers
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|a angle-resolved photoelectron spectroscopy and microscopy
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|a electron optics
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|a electron spin
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|a Petrov, Vladimir N
|e verfasserin
|4 aut
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|a Dil, J Hugo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 22(2015), 3 vom: 24. Mai, Seite 708-16
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
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|g volume:22
|g year:2015
|g number:3
|g day:24
|g month:05
|g pages:708-16
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|u http://dx.doi.org/10.1107/S160057751500363X
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