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Above room-temperat...
Above room-temperature ferromagnetism in GaN powders by calcinations with CuO
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Noice, L. (author)
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Seipel, B. (author)
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- Erni, R. (author)
- KTH,Materialvetenskap,Portland State University, United States
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Gupta, A. (author)
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Li, C. (author)
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Moeck, P. (author)
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- Rao, Venkat (author)
- KTH,Teknisk materialfysik
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Browning, N. (author)
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(creator_code:org_t)
- 2011-02-01
- 2006
- English.
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In: Mater Res Soc Symp Proc. - : Springer Science and Business Media LLC. - 1558998985 - 9781558998988 ; , s. 62-67
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Gallium nitride powders were calcined with copper oxide in either air or N2 and analyzed by means of powder X-ray diffraction (XRD), high-resolution parallel illumination (HRTEM) and scanning probe transmission electron microscopy (STEM), energy dispersive X-ray spectroscopy (EDXS), and electron energy loss spectroscopy (EELS) in order to address the structural and electronic effects of Cu-incorporation into GaN. Gallium oxide and multiple copper oxide phases corresponding to the calcination environment were detected. Significant changes in the lattice parameters and electronic structure of the N2-processed GaN indicate incorporation of both copper and oxygen into the GaN lattice as well as changes in the chemical bonding due to the calcinations process. SQUID magnetometer measurements at 300 K demonstrated ferromagnetism in selected samples.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Keyword
- Electronic effects
- Gallium oxide
- Scanning probe transmission electron microscopy (STEM)
- Calcination
- Copper oxides
- Electron energy loss spectroscopy
- Energy dispersive spectroscopy
- Ferromagnetism
- High resolution transmission electron microscopy
- Lattice constants
- Powders
- X ray powder diffraction
- Gallium nitride
Publication and Content Type
- ref (subject category)
- kon (subject category)
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