About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
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Symposium
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Thermal Property Characterization, Modeling, and Theory in Extreme Environments
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Presentation Title |
Non-magnetic Kondo Effect in Eelta-UZr2 |
Author(s) |
Xiaxin Ding, Kaya Wei, Tiankai Yao, Ryan Baumbach, Krzysztof Gofryk |
On-Site Speaker (Planned) |
Xiaxin Ding |
Abstract Scope |
Previously, we found an upturn of the electrical resistivity of UZr2 with a minimum at around 15 K and positive magnetoresistance [1]. To understand the nature of this unusual behavior and the source of the additional scattering mechanism of the conduction electrons at low temperatures, we have performed detailed low-temperature transport studies (down to 0.1 K) of this material under applied magnetic fields (up to 9 T). We find that the temperature dependence of magnetoresistance is independent of magnetic fields as high as 9 T. This is in agreement with the orbital Kondo resonance effect that should be weakly influenced by the magnetic field. It is also established that a two-level system determines the low-temperature thermal properties of materials with the disorder and a similar anomalous term is observed in the low temperature dependence of heat capacity of this material.[1] X. Ding et al., Phil. Mag. Lett. (under review) |
Proceedings Inclusion? |
Planned: |