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The effect of oxyge...
The effect of oxygen partial pressure during deposition in the magnetic properties of ZnO thin film
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- Biswas, Anis (author)
- KTH,Teknisk materialfysik
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- Shirong, Wang (author)
- KTH,Teknisk materialfysik
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- Nagar, Sandeep (author)
- KTH,Teknisk materialfysik
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- Belova, Liubov (author)
- KTH,Teknisk materialfysik
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- Rao, K. Venkat (author)
- KTH,Teknisk materialfysik
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(creator_code:org_t)
- 2011-01-14
- 2011
- English.
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In: Mater Res Soc Symp Proc. - : Springer Science and Business Media LLC. - 9781605112695 ; , s. 117-122
- 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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- We have studied the magnetic properties of 100 nm thick ZnO thin films prepared by magnetron sputtering in different oxygen partial pressures (ratio of oxygen pressure to total pressure in deposition chamber, P Oxy). Only the films fabricated at P Oxy below ∼ 0.5 show room temperature ferromagnetism. The saturation magnetization at room temperature is initially found to increase as P Oxy increases and reaches maximum value of ∼ 5 emu/gm at P Oxy ∼ 0.3 and then starts to decrease and becomes diamagnetic for P Oxy > 0.5. From small angle XRD study of structural properties of the films, we find that the lattice stress developed in the film along c-axis also exhibits a similar behavior with the variation of P Oxy. Thus, both the room temperature ferromagnetism and lattice stress appear to originate from the intrinsic defects present in the sample.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- Deposition chambers
- Effect of oxygen
- Intrinsic defects
- Lattice stress
- Maximum values
- Oxygen partial pressure
- Oxygen pressure
- Room temperature
- Room temperature ferromagnetism
- Total pressure
- XRD studies
- ZnO thin film
- Deposition
- Ferromagnetism
- Magnetic properties
- Metallic films
- Optical films
- Oxide films
- Oxygen
- Partial pressure
- Pressure effects
- Saturation magnetization
- Thin films
- Vapor deposition
- Zinc oxide
- Magnetic thick films
Publication and Content Type
- ref (subject category)
- kon (subject category)
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