Absence of room temperature ferromagnetism in bulk Mn-doped ZnO

Details Absence of room temperature ferromagnetism in bulk Mn-doped ZnO Absence of room temperature ferromagnetism in bulk Mn-doped ZnO

2004-04-07

arxiv.org/abs/cond-mat/0404186v1

Physics

Condensed Matter

Materials Science

Accepted for publication in J. Appl. Phys., RevTeX, 3 pages, 4 figures

Scientific paper

10.1063/1.1755428

Structural and magnetic properties have been studied for polycrystalline Zn_1-xMn_xO (x=0.02, 0.03, 0.05). Low-temperature (~500 oC) synthesis leaves unreacted starting ZnO and manganese oxides. Contrary to a recent report, no bulk ferromagnetism was observed for single-phase materials synthesized in air at temperatures above 900 oC. Single-phase samples show paramagnetic Curie-Weiss behavior.

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