In:
Chinese Physics Letters, IOP Publishing, Vol. 40, No. 10 ( 2023-09-01), p. 107403-
Abstract:
Superconductivity is one of most intriguing quantum phenomena, and the quest for elemental superconductors with high critical temperature ( T c ) is of great scientific significance due to their relatively simple material composition and the underlying mechanism. Here we report the experimental discovery of densely compressed scandium (Sc) becoming the first elemental superconductor with T c breaking into 30 K range, which is comparable to the T c values of the classic La–Ba–Cu–O or LaFeAsO superconductors. Our results show that T c onset of Sc increases from ∼ 3 K at around 43 GPa to ∼ 32 K at about 283 GPa ( T c zero ∼ 31 K), which is well above liquid neon temperature. Interestingly, measured T c shows no sign of saturation up to the maximum pressure achieved in our experiments, indicating that T c may be even higher upon further compression.
Type of Medium:
Online Resource
ISSN:
0256-307X
,
1741-3540
DOI:
10.1088/0256-307X/40/10/107403
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2023
detail.hit.zdb_id:
2040565-0
SSG:
6,25
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