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Enhancement of ferromagnetic properties in Zn0.95Co0.05O nanoparticles by indium codoping : An experimental and theoretical study
- Jayakumar, O. D. (author)
- Sudakar, C. (author)
-
- Persson, Clas (author)
- KTH,Tillämpad materialfysik
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- Salunke, H. G. (author)
- Naik, R. (author)
- Tyagi, A. K. (author)
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- (creator_code:org_t)
- AIP Publishing, 2010
- 2010
- English.
- In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 97:23, s. 232510-
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Nanoparticles of Zn0.95-xCo0.05InxO (x = 0.0 to 0.07) were synthesized by the pyrolitic reaction of sol-gels obtained from respective metal precursors. X-ray diffraction and high-resolution transmission electron microscopy studies confirm the formation of impurity-free wurtzite type ZnO structure for all the compositions. While pristine ZnO is diamagnetic, Zn0.95Co0.05O nanoparticles show weak paramagnetic behavior at room temperature. When "In." is codoped with Co with x = 0.0 to 0.07 in Zn0.95-xCo0.05InxO, a systematic increase in magnetic moment is observed up to x = 0.07. First-principles modeling supports that the ferromagnetic phase become more favorable at higher indium doping concentrations.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies (hsv//eng)
Keyword
- DILUTED MAGNETIC SEMICONDUCTOR
- HIGH-TEMPERATURE FERROMAGNETISM
- DOPED ZNO
- ROOM-TEMPERATURE
- ZINC-OXIDE
- THIN-FILMS
- ZN1-XCOXO
- CO
- PHOTOEMISSION
- SPECTROSCOPY
- Engineering physics
- Teknisk fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Jayakumar, O. D.
- Sudakar, C.
- Persson, Clas
- Salunke, H. G.
- Naik, R.
- Tyagi, A. K.
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- Royal Institute of Technology
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