Magnetic, transport and thermal properties of δ-phase UZr2

Xiaxin Ding, Tiankai Yao, Lyuwen Fu, Zilong Hua, Jason Harp, Chris Marianetti, Madhab Neupane, Michael E. Manley, David Hurley, Krzysztof Gofryk

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Polycrystals of hexagonal δ-phase UZr (Formula presented.) have been synthesised and studied by means of heat capacity, magnetic susceptibility, magnetisation, electrical resistivity, magnetoresistance, thermoelectric power, thermal conductivity measurements, for the first time, at temperatures from 1.8 to 300 K and in magnetic fields up to 8 T. The weak temperature dependence of the magnetic susceptibility and the small value of both Seebeck (0.75 μV/K at room temperature) and of the Sommerfeld coefficient (13.5 mJ mol (Formula presented.) K (Formula presented.)) point to 5f-electrons in this material having a delocalised nature. The electrical resistivity and magnetoresistance indicate the presence of significant electronic disorder in δ-UZr (Formula presented.), consistent with the disorder in its crystal structure. Density functional theory calculations have been performed and compared to experimental results.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalPhilosophical Magazine Letters
Volume101
Issue number1
DOIs
StatePublished - 2021

Funding

This work was supported by the US DOE BES Energy Frontier Research Centre ‘Thermal Energy Transport under Irradiation’ (TETI). The electronic structure calculations have been performed using resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. This work was supported by the US DOE BES Energy Frontier Research Centre ?Thermal Energy Transport under Irradiation? (TETI). The electronic structure calculations have been performed using resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. This work was supported by the US DOE BES Energy Frontier Research Centre ?Thermal Energy Transport under Irradiation? (TETI). The electronic structure calculations have been performed using resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.

FundersFunder number
TETI
US DOE BES
US DOE BES Energy Frontier Research Centre ‘Thermal Energy Transport
U.S. Department of EnergyDE-AC02-05CH11231
Office of Science

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