Anisotropic magnetization of RuEu1.5Ce0.5Sr2Cu2O10 (Ru-1222) thin films
I. Felner, G. Kopnov, G. Koren
TL;DR
This study investigates the magnetic anisotropy of Ru-1222 thin films, revealing a magnetic ordering at 180 K, a basal plane easy axis, and a significant anisotropy ratio, with implications for understanding their magnetic properties.
Contribution
First detailed magnetic anisotropy measurements of Ru-1222 thin films, showing their magnetic behavior and comparison with ceramic counterparts.
Findings
Magnetic ordering at 180 K
Easy axis in the basal plane
Anisotropy ratio of 7.5
Abstract
A dc magnetic study is reported on c-axis oriented epitaxial thin films of EuSr2Eu1.5Ce0.5Cu2O10 (Ru-1222) on (100) SrTiO3 wafers. Magnetic measurements on 200 and 500 nm thick films were performed with the magnetic field either parallel or perpendicular to the wafer. We found that the films order magnetically at 180 K. The easy axis of the magnetization is in the basal plane and the Ru5+ ions are in their high-spin state, as deduced from the isothermal magnetization curves at low temperatures. The anisotropy ratio was found to be 7.5. The observed results are compared to data of the Ru-1222 ceramic material.
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