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Field-Induced Inversion of the Magnetoresistive Effect in the Zintl Phase Eu5+xMg18−xSi13 (x=2.2)

Angewandte Chemie International Edition, Volume 52, Issue 7, pages 2122–2125, February 11, 2013.

Adam Slabon, Dipl.-Ing. Christian Mensing,Dr. Christof Kubata, Dr. Eduardo Cuervo-Reyes, Prof. Dr. Reinhard Nesper

Department of Chemistry, ETH Zürich, Wolfgang-Pauli-Strasse 10, CH-8093 Zürich (Switzerland)

Abstract

Watch the signs! The new Zintl phase Eu₅₊xMg₁₈₋xSi₁₃ (x=2.2) displays a negative as well as a positive magnetoresistive effect depending on the temperature. The maximal value of the magnetoresistivity of 92 % occurs at 100 K and 9 T (see plot).

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