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Quasi two-dimensional nature of high-Tc superconductivity in iron-based (Li,Fe)OHFeSe
- Source :
- Chinese Physics Letters 39, 127402 (2022) Exp. Lett
- Publication Year :
- 2022
-
Abstract
- The intercalated iron selenide (Li,Fe)OHFeSe has a strongly layered structure analogous to the quasi two-dimensional (2D) bismuth cuprate superconductors, and exhibits both high-temperature (Tc) and topological superconductivity. However, the issue of its superconductivity dimensionality has not yet been fully investigated so far. Here we report that the quasi-2D superconductivity features, including the high anisotropy {\gamma} = 151 and the associated quasi-2D vortices, are also revealed for (Li,Fe)OHFeSe, based on systematic experiments of the electrical transport and magnetization and model fittings. Thus, we establish a new vortex phase diagram for (Li,Fe)OHFeSe, which delineates an emergent quasi-2D vortex-liquid state, and a subsequent vortex-solid dimensional crossover from a pancake-like to a three-dimensional state with decreasing temperature and magnetic field. Furthermore, we find that all the quasi-2D characteristics revealed here for the high-Tc iron selenide superconductor are very similar to those reported for the high-Tc bismuth cuprate superconductors.<br />Comment: 20 pages, 6 figures
- Subjects :
- Condensed Matter - Superconductivity
Subjects
Details
- Database :
- arXiv
- Journal :
- Chinese Physics Letters 39, 127402 (2022) Exp. Lett
- Publication Type :
- Report
- Accession number :
- edsarx.2212.02022
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/0256-307X/39/12/127402