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Structural and magn...
Structural and magnetic properties of Co-N thin films deposited using magnetron sputtering at 523 K
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- Pandey, Nidhi (författare)
- UGC DAE Consortium Sci Res, Univ Campus,Khandwa Rd, Indore 452001, Madhya Pradesh, India.
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- Gupta, Mukul (författare)
- UGC DAE Consortium Sci Res, Univ Campus,Khandwa Rd, Indore 452001, Madhya Pradesh, India.
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- Gupta, Rachana (författare)
- Inst Engn & Technol DAVV, Khandwa Rd, Indore 452017, Madhya Pradesh, India.
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- Chakravarty, Sujay (författare)
- UGC DAE Consortium Sci Res, Kokilamedu 603104, Tamil Nadu, India.
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- Shukla, Neeraj (författare)
- UGC DAE Consortium Sci Res, Kokilamedu 603104, Tamil Nadu, India.
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- Devishvili, Anton (författare)
- Uppsala universitet,Institutionen för fysik och astronomi,Inst Laue Langevin, Rue Martyrs, F-38042 Grenoble, France.;Lund Univ, Dept Chem, Div Phys Chem, S-22100 Lund, Sweden.
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UGC DAE Consortium Sci Res, Univ Campus,Khandwa Rd, Indore 452001, Madhya Pradesh, India Inst Engn & Technol DAVV, Khandwa Rd, Indore 452017, Madhya Pradesh, India. (creator_code:org_t)
- Elsevier BV, 2017
- 2017
- Engelska.
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Ingår i: Journal of Alloys and Compounds. - : Elsevier BV. - 0925-8388 .- 1873-4669. ; 694, s. 1209-1213
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this work, we studied cobalt nitride (Co-N) thin films deposited using a dc magnetron sputtering method at a substrate temperature (T-s) of 523 K. We find that independent of the reactive gas flow (R-N2) used during sputtering, the phases of Co-N formed at this temperature seems to be identical having N at.% similar to 5. This is contrary to Co-N phases formed at lower T-s. For example at T-s similar to 300 K, an evolution of Co-N phases starting from Co(N) -> Co4N -> Co-3 N -> CoN can be seen as R-N2 increases gradually to 100%, whereas when T-s increases to 523 K, the phase formed is fcc Co along with a minuscule Co4N phase for R-N2 >= 25%. We used x-ray diffraction (XRD) to probe long range ordering, x-ray absorption spectroscopy (XAS) at Co absorption edge for the local structure, Magneto-optical Kerr effect (MOKE) and polarized neutron reflectivity (PNR) to measure the magnetization of samples. Quantification of N at.% was done using secondary ion mass spectroscopy (SIMS). Measurements suggest that the magnetic moment of Co N samples deposited at 523 K is slightly higher than the bulk Co moment and does not get affected with the R-N2 used for reactive sputtering. Our results provide an important insight about the phase formation of Co-N thin films which is discussed in this work.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Cobalt nitride thin films
- Tetra cobalt nitride
- Reactive nitrogen sputtering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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