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Soft-x-ray spectros...
Soft-x-ray spectroscopic investigation of ferromagnetic Co-doped ZnO
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Krishnamurthy, S (author)
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McGuinness, C (author)
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Dorneles, L S (author)
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Venkatesan, M (author)
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Coey, J M D (author)
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Lunney, J G (author)
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Pattersonb, C H (author)
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Smith, K E (author)
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Learmonth, T (author)
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Glans, P A (author)
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- Schmitt, Thorsten (author)
- Lund University,Lunds universitet,KTH,Mikroelektronik och Informationsteknik, IMIT,MAX IV-laboratoriet,MAX IV Laboratory
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Guo, J H (author)
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(creator_code:org_t)
- AIP Publishing, 2006
- 2006
- English.
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In: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 99:8
- Related links:
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http://www.tara.tcd....
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Subject headings
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- The electronic properties of cobalt-doped ZnO were investigated through site-selective and element-sensitive x-ray-absorption spectroscopy in the vicinity of the Co L-2,L-3 edge, the oxygen K edge, and at the Zn L-3 edge. The spectroscopic measurements of the ferromagnetic cobalt-doped ZnO films appear to have additional components in the O K edge x-ray-absorption spectrum not observed in the undoped films. The observed features may derive from both hybridization with unoccupied Co 3d states and also from lattice defects such as oxygen vacancies. Only minor changes in the Zn L-3 edge spectra were observed. These observations are consistent with a polaron percolation model in which the ferromagnetic coupling is mediated by shallow donor electrons trapped in oxygen vacancies and couples the Co atoms substituted on Zn sites in the hexagonal wurtzite ZnO structure.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- TRANSITION-METAL OXIDES
- MAGNETIC SEMICONDUCTORS
- ABSORPTION SPECTROSCOPY
- ELECTRONIC-STRUCTURE
- FILMS
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Krishnamurthy, S
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McGuinness, C
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Dorneles, L S
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Venkatesan, M
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Coey, J M D
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Lunney, J G
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show more...
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Pattersonb, C H
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Smith, K E
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Learmonth, T
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Glans, P A
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Schmitt, Thorste ...
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Guo, J H
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Journal of Appli ...
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Applied Physics ...
- By the university
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Royal Institute of Technology
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Lund University