In:
Journal of the American Ceramic Society, Wiley, Vol. 105, No. 3 ( 2022-03), p. 2258-2267
Abstract:
In collinear antiferromagnetic (AFM) order, the structural evolution and electronic structure of AFe 2 As 2 (A = Ba, Sr) under hydrostatic and uniaxial pressures have been studied. The Fe‐Fe distance is closely related to the AFM suppression as well as the Fe‐As bond. Through analysis of Fermi surface and band diagram, the uniaxial pressure along c ‐axis can make the band near the Γ point to produce Lifshitz transition under the condition of lower pressure, and it is easier to suppress Fe magnetic moment. If the pressure component along c ‐axis is larger in the experiment, it is easier to cause the superconducting. The superconductivity of BaFe 2 As 2 and SrFe 2 As 2 under pressure may be due to the increasing of Fe 3 d ‐ and As 4 p ‐hybridized bands width near the Fermi level.
Type of Medium:
Online Resource
ISSN:
0002-7820
,
1551-2916
Language:
English
Publisher:
Wiley
Publication Date:
2022
detail.hit.zdb_id:
2008170-4
detail.hit.zdb_id:
219232-9
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