Tīmeklis2024. gada 17. aug. · The synthesis of the high-temperature superconductor ${\\mathrm{LaH}}_{10}$ requires pressures in excess of 100 GPa, wherein it adopts a face-centered cubic structure. Upon decompression, this structure undergoes a distortion, which still supports superconductivity, but with a lower critical temperature. … TīmeklisThe superconducting hydrides LaH10, EuH9 and UH8 are studied using chemically intuitive bonding analysis of periodic and molecular models. We find trends in the crystallographic and electronic structures of the materials by focusing on chemically meaningful building blocks in the predicted H sublattices. Atomic charge calculations, …
Crystal structure of sodalite-like LaH 10 (A) and LaH 6
TīmeklisThe discovery of superconductivity at 200 K in the hydrogen sulfide system at large pressures [1] was a clear demonstration that hydrogen-rich materials can be high-temperature superconductors ... Tīmeklis2024. gada 2. okt. · We explore high-pressure phase stability and superconductivity of lanthanum hydrides (m=4-11,16). We predict stability of a hitherto unreported polyhydride - at pressures above 150 GPa; at 200 GPa its predicted superconducting is 156 K, critical field (0) ~ 35 T and superconducting gap is up to 35 meV. We revisit … leftist psychology oversocialization
Electron–phonon coupling constant and BCS ratios in LaH10−y …
Tīmeklis2024. gada 1. okt. · We study the high-pressure chemistry of the La-H system and superconducting properties of the predicted lanthanum hydrides. A Fm3m -LaH 10 + 3H2 → P6/mmm-LaH16 reaction … Tīmeklis2024. gada 23. aug. · We infer that the resistance drop is a signature of the predicted room-temperature superconductivity in LaH10, in good agreement with density … Tīmeklis十氢化镧是镧和氢形成的氢化物之一,化学式为LaH 10 ,是一种多氢化物或超氢化物,有望用作高温超导体。 它的超导转变温度T c 为约250 K(−23 °C;−10 … leftist political symbols