کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5788625 | 1414259 | 2017 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: ArticleA possible new family of unconventional high temperature superconductors ArticleA possible new family of unconventional high temperature superconductors](/preview/png/5788625.png)
We suggest a new family of Co/Ni-based materials that may host unconventional high temperature superconductivity (high-Tc). These materials carry layered square lattices with each layer being formed by vertex-shared transition metal tetrahedra cation-anion complexes. The electronic physics in these materials is determined by the two dimensional layer and is fully attributed to the three near degenerated t2gd-orbitals close to a d7 filling configuration in the d-shell of Co/Ni atoms. The electronic structure meets the necessary criteria for unconventional high Tc materials proposed recently by us to unify the two known high-Tc families, cuprates and iron-based superconductors. We predict that they host superconducting states with a d-wave pairing symmetry with Tc potentially higher than those of iron-based superconductors. These materials, if realized, can be a fertile new ground to study strongly correlated electronic physics and provide decisive evidence for superconducting pairing mechanism.
Journal: Science Bulletin - Volume 62, Issue 3, 15 February 2017, Pages 212-217