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Structural effects of transition metal oxide calcinations on wurtzite type semiconductors that are ferromagnetic at room temperature
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
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2007 (English)In: Novel semiconductor materials for room-temperature ferromagnetism, Materials Research Society, 2007, 31-36 p.Conference paper (Refereed)
Abstract [en]

Gallium nitride powders and zinc oxide powders were each calcined with a few weight percent of copper oxide and/or magnesium oxide either in air or N2. Powder X-ray diffractometry, transmission electron microscopy, energy dispersive X-ray spectroscopy, and electron energy loss spectroscopy were performed in order to observe calcination induced structural effects on these wurtzite type semiconductors. We note that our earlier magnetic results on Cu doped GaN are qualitatively consistent with recent first principle calculations [Wu et al., Appl. Phys. Lett. 89 (2006) 62505].

Place, publisher, year, edition, pages
Materials Research Society, 2007. 31-36 p.
, Materials Research Society Symposium Proceedings, ISSN 0272-9172 ; 999
Keyword [en]
Diffractometry, Energy dispersive, First principles, Magnesium oxides, Room temperatures, Semi-conductors, Structural effects, Weight percents, Wurtzite types, Zinc oxide powders
National Category
Metallurgy and Metallic Materials
URN: urn:nbn:se:kth:diva-154985ScopusID: 2-s2.0-57749198215ISBN: 978-160560433-6OAI: diva2:759264
Novel Semiconductor Materials for Room-Temperature Ferromagnetism, 9 April 2007 through 13 April 2007, San Francisco, CA, United States

QC 20141029

Available from: 2014-10-29 Created: 2014-10-29 Last updated: 2014-10-29Bibliographically approved

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Gupta, AmitaRao, K. Venkat
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