Consequences of the CMR effect on EELS in TEM

Wolfgang Wallisch; Michael Stöger-Pollach; Edvinas Navickas

doi:10.1016/j.ultramic.2017.04.011

Consequences of the CMR effect on EELS in TEM

Materials Science 2018-06-20 v1

Authors: Wolfgang Wallisch , Michael Stöger-Pollach , Edvinas Navickas

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

Double perovskite oxides have gained in importance and exhibit negative magnetoresistance, which is known as colossal magnetoresistance (CMR) effect. Using a La $_2$ CoMnO $_6$ (LCM) thin film we prove that the physical consequences of the CMR effect do also influence the electron energy loss spectrometry (EELS) signal. We observe a change of the band gap at low energy losses and are able to study the magnetisation with chemical sensitivity by employing energy loss magnetic chiral dichroism (EMCD) below the Curie temperature T $_C$ where the CMR effect becomes significant.

Keywords

magnetoresistance

Cite

@article{arxiv.1806.07118,
  title  = {Consequences of the CMR effect on EELS in TEM},
  author = {Wolfgang Wallisch and Michael Stöger-Pollach and Edvinas Navickas},
  journal= {arXiv preprint arXiv:1806.07118},
  year   = {2018}
}

Related papers

View all related →