Abstract
The nodal ring material has recently attracted wide attention due to its singular properties and potential applications in spintronics. Here, two-dimensional Zn3C6S6 is calculated and discussed by using first-principle calculations. We found that two-dimensional Zn3C6S6 can generate a nodal ring at 10% compressive strain, and the existence of the ring is proved by a partial charge density map. And as the compressive strain increases, the nodal ring does not disappear. At the same time, the stability of the electron-orbit coupling to the nodal ring is applied. Our findings indicate that the two-dimensional Zn3C6S6 is promising in new electronic and spintronic applications.
Highlights
Since the quantum spin Hall effect and topological state have been discovered, in the field of condensed matter physics, the nontrivial singular properties of topological states and potential application prospects have quickly become hot research topics [1, 2]
Topological semimetal refers to a metal state in which a class of electronic structures has a band depletion point protected by crystal symmetry in the vicinity of Fermi energy
By analyzing the energy band, we found that the energy band characteristics satisfy the conditions for forming the nodal ring, and Journal of Nanomaterials the strain control of the structure is found
Summary
Since the quantum spin Hall effect and topological state have been discovered, in the field of condensed matter physics, the nontrivial singular properties of topological states and potential application prospects have quickly become hot research topics [1, 2] These peculiar topological states, such as topological insulators [3,4,5,6], topological semimetals [7, 8], and topological superconductors [9], are predicted and confirmed. The first type of topological semimetals has zero-dimensional discrete energy band intersections in the momentum space. The second type of topological semimetal has a one-dimensional quadruple or double degenerate energy band intersection in the momentum space. In addition to being compatible with current nanoelectronic devices, one of the most important advantages of this material is that it can directly characterize its topological state through angular-resolved light emission spectra in experiments, which provides an ideal platform for designing new nanoscale materials
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