Structure and magnetism of manganese‐doped ZnO powder samples | Zendy

Ahmed S. A. | Zendy

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Structure and magnetism of manganese‐doped ZnO powder samples

Author(s) -

Ahmed S. A.

Publication year - 2009

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.200900289

Subject(s) - ferromagnetism , magnetization , magnetism , manganese , coercivity , condensed matter physics , doping , hysteresis , materials science , magnetic hysteresis , magnetic semiconductor , metallurgy , magnetic field , physics , quantum mechanics

The magnetic and structural properties of manganese‐doped ZnO powder samples prepared by a solid state method are reported. Magnetization measurements indicate ferromagnetic behavior, with hysteresis observed in the M vs. H behavior at 300 K. Coercive fields were <100 Oe at 300 K. Temperature‐dependent magnetization measurements showed evidence for ordering temperatures of >300 K. However, the results show that ferromagnetism originates from the doped matrix rather than any type of magnetic cluster and the ferromagnetism is due to the defects and/or oxygen vacancies confined to the surface of the grains. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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