Magnetoresistance and Phase Diagram of Thin-Film UNi2Al3
Marc Scheffler, Eva Rose, Julia P. Ostertag, Karl Schrem, Katrin, Steinberg, Martin Dressel, Martin Jourdan
TL;DR
This study investigates the resistivity and magnetic phase diagram of thin-film UNi2Al3, revealing differences from bulk crystals and providing insights into its antiferromagnetic transition behavior.
Contribution
It presents the first detailed resistivity measurements of UNi2Al3 thin films and compares their magnetic phase diagram to bulk crystal data.
Findings
Resistivity shows clear signature of antiferromagnetic transition at ~4 K.
Quantitative differences in phase diagram compared to bulk crystals.
Provides new insights into thin-film magnetic properties.
Abstract
We study the dc resistivity of UNi2Al3 thin films as a function of temperature and magnetic field. We focus on the temperature range around the antiferromagnetic transition (TN \approx 4 K in zero applied field). From a clear signature of TN in the dc resistance along the crystallographic a-direction, we extract the shape of the magnetic phase diagram. Here we find quantitative differences in comparison to previous studies on bulk crystals.
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