Electronic and magnetic properties of Lu and LuH${}_2$

Abstract

Clarifying the electronic and magnetic properties of lutetium, lutetium dihydride, and lutetium oxide is very helpful to understand the emergent phenomena in lutetium-based compounds (such as room-temperature superconductivity). However, this kind of study is still scarce at present. Here, we report on the electronic and magnetic properties of lutetium metals, lutetium dihydride powders, and lutetium oxide powders. Crystal structures and chemical compositions of these samples were characterized by X-ray diffraction and X-ray photoemission spectroscopy, respectively. Electrical transport measurements show that the resistance of lutetium has a linear behavior depending on temperature, whereas the resistance of lutetium dihydride powders is independent of temperature. More interestingly, paramagnetism-ferromagnetism-spin glass transitions were observed at near 240 and 200 K, respectively, in lutetium metals. Our work uncovered the complex magnetic properties of Lu-based compounds.

References in corpus (19)

• Absence of near-ambient superconductivity in LuH${}_{2\pm \text{x}}$N${}_y$
• Search for ambient superconductivity in the Lu-N-H system
• Superconductivity above 70 K observed in lutetium polyhydrides
• Pressure-induced color change in the lutetium dihydride LuH2
• First-principles study on the superconductivity of N-doped fcc-LuH3
• Lu-H-N phase diagram from first-principles calculations
• Structure, Stability and Superconductivity of N-doped Lutetium Hydrides at kbar Pressures
• The near room-temperature upsurge of electrical resistivity in Lu-H-N is not superconductivity, but a metal-to-poor-conductor transition
• Observation of non-superconducting phase changes in LuH${}_{2\pm \text{x}}$N${}_y$
• Pressure induced color change and evolution of metallic behavior in nitrogen-doped lutetium hydride
• Future Study of Dense Superconducting Hydrides at High Pressure
• Temperature and quantum anharmonic lattice effects on stability and superconductivity in lutetium trihydride
• On parent structures of near-ambient nitrogen-doped lutetium hydride superconductor
• Leading components and pressure-induced color changes in N-doped lutetium hydride
• Pressure tuning of optical reflectivity in LuH2
• Microscopic theory of colour in lutetium hydride
• Enormous variation in homogeneity and other anomalous features of room temperature superconductor samples: a Comment on Nature 615, 244 (2023)
• Transformation of hexagonal Lu to cubic LuH${}_{2+x}$ single-crystalline films
• Pressure-induced color change arising from transformation between intra- and inter-band transitions in LuH${}_{2\pm x}$N${}_y$

Cited by in corpus (9)

• Structure, Stability and Superconductivity of N-doped Lutetium Hydrides at kbar Pressures
• The near room-temperature upsurge of electrical resistivity in Lu-H-N is not superconductivity, but a metal-to-poor-conductor transition
• Observation of non-superconducting phase changes in LuH${}_{2\pm \text{x}}$N${}_y$
• Leading components and pressure-induced color changes in N-doped lutetium hydride
• Assessing the feasibility of near-ambient conditions superconductivity in the Lu-N-H system
• Microscopic theory of colour in lutetium hydride
• Transformation of hexagonal Lu to cubic LuH${}_{2+x}$ single-crystalline films
• Anatomy of the band structure of the newest apparent near-ambient superconductor LuH${}_{3-x}$N${}_x$
• Evidence of Molecular Hydrogen in the N-doped LuH3 System: a Possible Path to Superconductivity?