Flux crystal growth and thermal stabilities of LiV2O4
Source abstract
Abstract
The spinel oxide LiV2O4 is a interesting compound that shows heavy fermion behaviour despite its d-electron system. The large quasiparticle specific heat coefficient (γ value) is close to those of other heavy fermion systems in f-electron Zintl compounds. The mechanism of such heavy fermion behaviour in LiV2O4 has not been resolved, owing to the lack of high-quality single crystals required for experiments. Here we present a crystal-growth technique for LiV2O4 using a solvent system that acts effectively for mixed-valence vanadium (V3+ and V4+) oxides. The grown crystals have a well-developed octahedral form bounded by {111} faces, with high crystallographic quality and maximum size of almost 1.0×1.0×1.0 mm. The crystals have stoichiometric composition and show heavy fermion behaviour with an extremely large γ value of ∼460 mJ mol−1 K−2. Crystals of LiV2O4 are very sensitive to air and moisture, but are stable up to 1,020 ∘C under vacuum.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Condensed Matter Physics · Physics of Superconductivity and Magnetism · Electronic and Structural Properties of Oxides
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References (29)
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