A review of uranium-based thin films

Springell, R.; Bright, Eleanor Lawrence; Chaney, D. A.; Harding, L. M.; Bell, Chris; Ward, R. C. C.; Lander, G. H.

doi:10.1080/00018732.2023.2230292

Cited by 4 publications

(1 citation statement)

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“…It also makes a transition into an SC as the temperature further decreases. Thin films of α-U have been grown on substrates such as Nb and W, and show a great enhancement of T CDW due to the epitaxial strain from the substrates, suggesting a possibility of controlling CDW order using strain [252].…”

Section: Discussionmentioning

confidence: 99%

Charge density waves in two-dimensional transition metal dichalcogenides

Hwang,

Ruan,

Chen

et al. 2024

Rep. Prog. Phys.

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Charge density wave (CDW) is one of the most ubiquitous electronic orders in quantum materials. While the essential ingredients of CDW order have been extensively studied, a comprehensive microscopic understanding is yet to be reached. Recent research eﬀorts on the CDW phenomena in two-dimensional (2D) materials provide a new pathway toward a deeper understanding of its complexity. This review provides an overview of the CDW orders in 2D with atomically thin transition metal dichalcogenides (TMDCs) as the materials platform. We mainly focus on the electronic structure investigations on the epitaxially grown TMDC samples with angle-resolved photoemission spectroscopy and scanning tunneling microscopy/spectroscopy as complementary experimental tools. We discuss the possible origins of the 2D CDW, novel quantum states co-existing with them, and exotic types of charge orders that can only be realized in the 2D limit.

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Section: Discussionmentioning

confidence: 99%

Charge density waves in two-dimensional transition metal dichalcogenides

Hwang,

Ruan,

Chen

et al. 2024

Rep. Prog. Phys.

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Polyepitaxial grain matching to study the oxidation of uranium dioxide

Wasik,

Sutcliffe,

Podor

et al. 2024

npj Mater Degrad

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Although the principal physical behaviour of a material is inherently connected to its fundamental crystal structure, the behaviours observed in the real-world are often driven by the microstructure, which for many polycrystalline materials, equates to the size and shape of the constituent crystal grains. Here we highlight a cutting edge synthesis route to the controlled engineering of grain structures in thin films and the simplification of associated 3-dimensional problems to less complex 2D ones. This has been applied to the actinide ceramic, uranium dioxide, to replicate structures typical in nuclear fission fuel pellets, in order to investigate the oxidation and subsequent transformation of cubic UO2 to orthorhombic U3O8. This article shows how this synthesis approach could be utilised to investigate a range of phenomena, affected by grain morphology, and highlights some unusual results in the oxidation behaviour of UO2, regarding the phase transition to U3O8.

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