On the origin of high-temperature ferromagnetism in the low-temperature-processed Mn-Zn-O system

Darshan C. Kundaliya; S. B. Ogale; S. E. Lofland; S. Dhar; C. J. Metting; S. R. Shinde; Z. Ma; B. Varughese; K. V. Ramanujachary; L. Salamanca-Riba; T. Venkatesan

doi:10.1038/nmat1221

On the origin of high-temperature ferromagnetism in the low-temperature-processed Mn-Zn-O system

Darshan C. Kundaliya, S. B. Ogale, S. E. Lofland, S. Dhar, C. J. Metting, S. R. Shinde, Z. Ma, B. Varughese, K. V. Ramanujachary, L. Salamanca-Riba, T. Venkatesan

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Abstract

The origin of ferromagnetism in a metastable phase rather than by carrier-induced interaction between separated Mn atoms in ZnO in a low-temperature-processed MnO₂-ZnO system was demonstrated. It was observed that the ferromagnetism persists up to ∼980 K. It was shown that a uniform solution of Mn in ZnO does not form under low-temperature processing. The direct low-temperature film growth of Zn-incorporated Mn oxide shows ferromagnetism at low Zn concentration for an optimum oxygen growth pressure.

Original language	English (US)
Pages (from-to)	709-714
Number of pages	6
Journal	Nature Materials
Volume	3
Issue number	10
DOIs	https://doi.org/10.1038/nmat1221
State	Published - Oct 2004

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "On the origin of high-temperature ferromagnetism in the low-temperature-processed Mn-Zn-O system",

abstract = "The origin of ferromagnetism in a metastable phase rather than by carrier-induced interaction between separated Mn atoms in ZnO in a low-temperature-processed MnO2-ZnO system was demonstrated. It was observed that the ferromagnetism persists up to ∼980 K. It was shown that a uniform solution of Mn in ZnO does not form under low-temperature processing. The direct low-temperature film growth of Zn-incorporated Mn oxide shows ferromagnetism at low Zn concentration for an optimum oxygen growth pressure.",

author = "Kundaliya, {Darshan C.} and Ogale, {S. B.} and Lofland, {S. E.} and S. Dhar and Metting, {C. J.} and Shinde, {S. R.} and Z. Ma and B. Varughese and Ramanujachary, {K. V.} and L. Salamanca-Riba and T. Venkatesan",

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T1 - On the origin of high-temperature ferromagnetism in the low-temperature-processed Mn-Zn-O system

AU - Kundaliya, Darshan C.

AU - Ogale, S. B.

AU - Lofland, S. E.

AU - Dhar, S.

AU - Metting, C. J.

AU - Shinde, S. R.

AU - Ma, Z.

AU - Varughese, B.

AU - Ramanujachary, K. V.

AU - Salamanca-Riba, L.

AU - Venkatesan, T.

PY - 2004/10

Y1 - 2004/10

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AB - The origin of ferromagnetism in a metastable phase rather than by carrier-induced interaction between separated Mn atoms in ZnO in a low-temperature-processed MnO2-ZnO system was demonstrated. It was observed that the ferromagnetism persists up to ∼980 K. It was shown that a uniform solution of Mn in ZnO does not form under low-temperature processing. The direct low-temperature film growth of Zn-incorporated Mn oxide shows ferromagnetism at low Zn concentration for an optimum oxygen growth pressure.

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On the origin of high-temperature ferromagnetism in the low-temperature-processed Mn-Zn-O system

Abstract

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