An in-plane magnetic chiral dichroism approach for measurement of intrinsic magnetic signals using transmitted electrons

Nature Communications
Dongsheng SongJing Zhu

Abstract

Electron energy-loss magnetic chiral dichroism is a powerful technique that allows the local magnetic properties of materials to be measured quantitatively with close-to-atomic spatial resolution and element specificity in the transmission electron microscope. Until now, the technique has been restricted to measurements of the magnetic circular dichroism signal in the electron beam direction. However, the intrinsic magnetization directions of thin samples are often oriented in the specimen plane, especially when they are examined in magnetic-field-free conditions in the transmission electron microscope. Here, we introduce an approach that allows in-plane magnetic signals to be measured using electron magnetic chiral dichroism by selecting a specific diffraction geometry. We compare experimental results recorded from a cobalt nanoplate with simulations to demonstrate that an electron magnetic chiral dichroism signal originating from in-plane magnetization can be detected successfully.

References

Aug 4, 2005·Journal of Electron Microscopy·Kazuo Ishizuka, Brendan Allman
Aug 19, 2007·Ultramicroscopy·Peter SchattschneiderPavel Novák
May 27, 2010·Journal of Microscopy·J RuszK Leifer
Dec 15, 2012·Ultramicroscopy·Ján RuszKazuyoshi Tatsumi
Jan 17, 2015·Nano Letters·Toshiaki TanigakiDaisuke Shindo
Jan 5, 2016·Scientific Reports·Dongsheng SongJing Zhu
May 18, 2016·Chemistry of Materials : a Publication of the American Chemical Society·Daniel WolfEtienne Snoeck
Sep 1, 2016·Nature Communications·Ján RuszClaus M Schneider

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Citations

Sep 4, 2021·Physical Review Letters·Dongsheng Song, Rafal E Dunin-Borkowski

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Methods Mentioned

BETA
circular dichroism
electron holography
electron holographic tomography
X-ray

Software Mentioned

Matlab
automatic term selection ( MATS )
EMCD

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