Observation of a robust zero-energy bound state in iron-based superconductor Fe(Te,Se)
Jiaxin Yin,Jiaxin Yin,Zheng Wu,J. H. Wang,Zhiyang Ye,Zhiyang Ye,Jing Gong,Xing-Yuan Hou,Lei Shan,Ang Li,X. J. Liang,Xianxin Wu,Jian Li,C. S. Ting,Ziqiang Wang,Jiangping Hu,Jiangping Hu,Pei-Herng Hor,Hong Ding,S. H. Pan,S. H. Pan +20 more
Reads0
Chats0
TLDR
In this paper, a scanning tunnelling study of Fe(Te,Se) reveals a robust zero-energy bound state, providing evidence for a non-trivial pairing symmetry.Abstract:
The symmetry of Cooper pairs in iron-based superconductors is an issue under continued investigation. A scanning tunnelling study of Fe(Te,Se) reveals a robust zero-energy bound state, providing evidence for a non-trivial pairing symmetry.read more
Citations
More filters
Journal ArticleDOI
Evidence for Majorana bound states in an iron-based superconductor.
Dongfei Wang,Lingyuan Kong,Peng Fan,Hui Chen,Shiyu Zhu,Wenyao Liu,Lu Cao,Yujie Sun,Shixuan Du,John Schneeloch,Ruidan Zhong,Genda Gu,Liang Fu,Hong Ding,Hong-Jun Gao +14 more
TL;DR: A sharp zero-bias peak inside a vortex core that does not split when moving away from the vortex center is observed, consistent with the tunneling to a nearly pure MBS, separated from nontopological bound states.
Journal ArticleDOI
Catalogue of topological electronic materials
TL;DR: An effective, efficient and fully automated algorithm that diagnoses the nontrivial band topology in a large fraction of nonmagnetic materials is introduced, based on recently developed exhaustive mappings between the symmetry representations of occupied bands and topological invariants.
Journal ArticleDOI
Observation of topological superconductivity on the surface of an iron-based superconductor
Peng Zhang,Koichiro Yaji,Takahiro Hashimoto,Yuichi Ota,Takeshi Kondo,Kozo Okazaki,Zhijun Wang,Jinsheng Wen,Genda Gu,Hong Ding,Shik Shin +10 more
TL;DR: The researchers found that the surface of the iron superconductor FeTe0.55Se0.45 satisfies the required conditions for topological superconductivity, providing a simple and possibly high-temperature platform for realizing Majorana states.
Journal Article
Observation of topological superconductivity on the surface of iron-based superconductor
Peng Zhang,Koichiro Yaji,Takahiro Hashimoto,Yuichi Ota,Takeshi Kondo,Kozo Okazaki,Zhijun Wang,Jinsheng Wen,Genda Gu,Hong Ding,Shik Shin +10 more
TL;DR: In this paper, the surface of the iron-based superconductor FeTe0.55Se0.45 has been shown to be topologically superconducting, providing a simple and possibly high-temperature platform for realizing Majorana states.
Journal ArticleDOI
2D materials for quantum information science
Xiaolong Liu,Mark C. Hersam +1 more
TL;DR: In this article, the authors discuss the quantum properties and potential of 2D materials as solid-state platforms for quantum-dot qubits, single-photon emitters, superconducting qubits and topological quantum computing elements.
References
More filters
Journal ArticleDOI
Superconducting Proximity Effect and Majorana Fermions at the Surface of a Topological Insulator
Liang Fu,Charles L. Kane +1 more
TL;DR: It is shown that linear junctions between superconductors mediated by the topological insulator form a nonchiral one-dimensional wire for Majorana fermions, and that circuits formed from these junctions provide a method for creating, manipulating, and fusing Majorana bound states.
Journal ArticleDOI
Impurity-induced states in conventional and unconventional superconductors
TL;DR: In this article, the authors provide a unified framework for describing quasi-localized states in the vicinity of impurity sites in conventional and unconventional superconductors and show that these fluctuations affect the density of states and are, strictly speaking, gapless in the presence of an arbitrarily small concentration of magnetic impurities.
Journal ArticleDOI
Gap symmetry and structure of Fe-based superconductors
TL;DR: In this paper, a spin fluctuation theory and the sign-changing s-wave symmetry of superconducting gap structures was proposed to account for the nonuniversality of the gap structures of FeNictide and chalcogenide superconductors.
Journal ArticleDOI
Gap symmetry and structure of Fe-based superconductors
TL;DR: In this paper, it was shown that the properties of Fe-pnictide and chalcogenide superconductors can be explained by considering spin fluctuation theory and accounting for the peculiar electronic structure of these systems coupled with the likely sign-changing s-wave symmetry.
Journal ArticleDOI
Imaging the effects of individual zinc impurity atoms on superconductivity in Bi2Sr2CaCu2O8+delta
TL;DR: Scanning tunnelling microscopy is used to investigate the effects of individual zinc impurity atoms in the high-temperature superconductor Bi2Sr2CaCu 2O8+δ and reveals the long-sought four-fold symmetric quasiparticle ‘cloud’ aligned with the nodes of the d-wave superconducting gap which is believed to characterize superconductivity in these materials.
Related Papers (5)
Superconducting Proximity Effect and Majorana Fermions at the Surface of a Topological Insulator
Liang Fu,Charles L. Kane +1 more