Magnetization study of nanograined pure and Mn-doped ZnO films: Formation of a ferromagnetic grain-boundary foam

B. Straumal, Boris; A. Mazilkin, Andrei; G. Protasova, S.; A. Myatiev, A.; B. Straumal, P.; Schütz, Gisela; A. van Aken, Peter; Goering, E.; Baretzky, B.

doi:10.1103/physrevb.79.205206

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Magnetization study of nanograined pure and Mn-doped ZnO films: Formation of a ferromagnetic grain-boundary foam

Shared by NobleBlocks on May 14, 2009 • 12:00 AM UTC

Authors:

Boris B. Straumal

Andrei A. Mazilkin

S. G. Protasova

Abstract

In order to elucidate room-temperature (RT) ferromagnetism (FM) in ZnO, we have analyzed a multitude of experimental publications with respect to the ratio of grain-boundary (GB) area to grain volume. FM only appears if this ratio exceeds a certain threshold value ${s}_{\text{th}}$. Based on these i...

Subject

Materials science

Ferromagnetism

Grain boundary

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