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arXiv · 1806.01833

Resonant photoemission with circular polarized light on magnetized LSMO

M. C. Richter·O. Heckmann·B. S. Mun·C. S. Fadley·B. Mercey·K. Hricovini
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Abstract

We have used resonant photoemission with circular polarized light as a new tool to obtain information about the electronic structure of half-metals. After careful sample surface preparation of La0.7Sr0.3MnO3, we have obtained a dichroic signal for the L2,3 absorption of Mn. Working with a magnetized sample and circular polarized light we observe a clear effect of the helicity of light on the position of the resonant Raman-Auger photoelectrons from the Mn 2p3p3d decay. These results allow us to achieve a rough estimate of the half-metallic spin half-gap.

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M. C. Richter, O. Heckmann, B. S. Mun, C. S. Fadley, B. Mercey, K. Hricovini. 2018-06-05. Resonant photoemission with circular polarized light on magnetized LSMO. https://arxiv.org/abs/1806.01833

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