Magnetic, transport and thermal properties of δ-phase UZr2

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

doi:10.1080/09500839.2020.1833375

Title: Magnetic, transport and thermal properties of δ-phase UZr₂

Journal Article · Mon Nov 02 00:00:00 EST 2020 · Philosophical Magazine Letters

DOI:https://doi.org/10.1080/09500839.2020.1833375· OSTI ID:1735434

^[1];

^[1]; Fu, Lyuwen ^[2]; Hua, Zilong ^[1];

^[3]; Marianetti, Chris ^[2]; Neupane, Madhab ^[4];

^[5]; Hurley, David ^[1];

^[1]

Idaho National Lab. (INL), Idaho Falls, ID (United States)
Columbia Univ., New York, NY (United States)
Idaho National Lab. (INL), Idaho Falls, ID (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Univ. of Central Florida, Orlando, FL (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Here, polycrystals of hexagonal δ-phase UZr₂ 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^–1 K^–2) 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-UZr₂, consistent with the disorder in its crystal structure. Density functional theory calculations have been performed and compared to experimental results.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC05-00OR22725; AC02-05CH11231

OSTI ID:: 1735434

Journal Information:: Philosophical Magazine Letters, Vol. 101, Issue 1; ISSN 0950-0839

Publisher:: Taylor & FrancisCopyright Statement

Country of Publication:: United States

Language:: English

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