974 citations · 13.4k across the 126 of their papers we have counts for
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Electron-K-Phonon Interaction In Twisted Bilayer Graphene
Chao-Xing Liu, Yulin Chen, Ali Yazdani +1
We develop an analytic theory to describe the interaction between electrons and K-phonons and study its influence on superconductivity in the bare bands of twisted bilayer graphene…
Crossover of Ising- to Rashba-Type Superconductivity in Epitaxial Bi2Se3/Monolayer NbSe2 Heterostructures
Hemian Yi, Lun-Hui Hu, Yuanxi Wang +15
A topological insulator (TI) interfaced with an s-wave superconductor has been predicted to host an unusual form of superconductivity known as topological superconductivity (TSC).…
Competing Vortex Topologies in Iron-based Superconductors
Lun-Hui Hu, Xianxin Wu, Chao-Xing Liu +1
In this work, we establish a new theoretical paradigm for vortex Majorana physics in the recently discovered topological iron-based superconductors (tFeSCs). While tFeSCs are widel…
In the Pursuit of Majorana Modes in Iron-based High- Superconductors
Xianxin Wu, Rui-Xing Zhang, Gang Xu +2
Majorana zero mode is an exotic quasi-particle excitation with non-Abelian statistics in topological superconductor systems, and can serve as the cornerstone for topological quantu…
Topological orders competing for the Dirac surface state in FeSeTe surfaces
Xianxin Wu, Suk Bum Chung, Chao-xing Liu +1
FeSeTe has recently emerged as a leading candidate material for the two-dimensional topological superconductivity (TSC). Two reasons for the excitement are the high of the sy…
Topological magnetic line defects in Fe(Te,Se) high-temperature superconductors
Xianxin Wu, Jia-Xin Yin, Chao-Xing Liu +1
Magnetic impurity chains on top of conventional superconductors are promising platforms to realize Majorana modes. Iron-based high-temperature superconductors are known in the vici…
Boundary-obstructed topological high-T superconductivity in iron pnictides
Xianxin Wu, Wladimir A. Benalcazar, Yinxiang Li +3
Non-trivial topology and unconventional pairing are two central guiding principles in the contemporary search for and analysis of superconducting materials and heterostructure comp…
Disordered Quantum Transport in Quantum Anomalous Hall Insulator-Superconductor Junctions
Jian-Xiao Zhang, Chao-Xing Liu
In this communication, we numerically studied disordered quantum transport in a quantum anomalous Hall insulator-superconductor junction based on the effective edge model approach.…
High- Superconductor Fe(Se,Te) Monolayer: an Intrinsic, Scalable and Electrically-tunable Majorana Platform
Xianxin Wu, Xin Liu, Ronny Thomale +1
A monolayer of the high- superconductor FeTeSe has been predicted to realize a topologically non-trivial state with helical edge modes at its boundary, providing a…
Spin Susceptibility, Upper Critical Field and Disorder Effect in Superconductors with Singlet-Quintet Mixing
Jiabin Yu, Chao-Xing Liu
Recently, a new pairing state with the mixing between s-wave singlet channel and isotropic d-wave quintet channel induced by centrosymmetric spin-orbit coupling has been theoretica…
Surface Majorana Flat Bands in Superconductors with Singlet-Quintet Mixing
Jiabin Yu, Chao-Xing Liu
Recent experiments have revealed the evidence of nodal-line superconductivity in half-Heusler superconductors, e.g. YPtBi. Theories have suggested the topological nature of such no…
Unconventional superconductivity and Surface pairing symmetry in Half-Heusler Compounds
Qing-Ze Wang, Jiabin Yu, Chao-Xing Liu
Signatures of nodal line/point superconductivity have been observed in half-Heusler compounds, such as LnPtBi (Ln = Y, Lu). Topologically non-trivial band structures, as well as to…
Singlet-Quintet Mixing in Spin-Orbit Coupled Superconductors with j=3/2 Fermions
Jiabin Yu, Chao-Xing Liu
In non-centrosymmetric superconductors, spin-orbit coupling can induce an unconventional superconducting state with a mixture of s-wave spin-singlet and p-wave spin-triplet channel…
Proximity-effect-induced Superconducting Gap in Topological Surface States - A Point Contact Spectroscopy Study of NbSe2/Bi2Se3 Superconductor-Topological Insulator Heterostructures
Wenqing Dai, Anthony Richardella, Renzhong Du +8
Proximity-effect-induced superconductivity was studied in epitaxial topological insulator Bi2Se3 thin films grown on superconducting NbSe2 single crystals. A point contact spectros…
Topological Larkin-Ovchinnikov phase and Majorana zero mode chain in bilayer superconducting topological insulator films
Lun-Hui Hu, Chao-Xing Liu, Fu-Chun Zhang
We theoretically study bilayer superconducting topological insulator film, in which superconductivity exists for both top and bottom surface states. We show that an in-plane magnet…
Direct imaging of electron transfer and its influence on superconducting pairing at FeSe/SrTiO3 interface
Weiwei Zhao, Mingda Li, Cui-Zu Chang +6
The exact mechanism responsible for the tenfold enhancement of superconducting transition temperature (Tc) in a monolayer iron selenide (FeSe) on SrTiO3(STO) substrate over that of…
Time-reversal-breaking topological phases in antiferromagnetic SrFeOsO films
Xiao-Yu Dong, Sudipta Kanungo, Binghai Yan +1
In this work, we studied time-reversal-breaking topological phases as a result of the interplay between antiferromagnetism and inverted band structures in thin films of antiferroma…
Topological Nonsymmorphic Crystalline Superconductors
Qing-Ze Wang, Chao-Xing Liu
Topological superconductors possess a nodeless superconducting gap in the bulk and gapless zero energy modes, known as "Majorana zero modes", at the boundary of a finite system. In…
Pairing strengths for a two orbital model of the Fe-pnictides
Xiao-Liang Qi, S. Raghu, Chao-Xing Liu +2
Using an RPA approximation, we have calculated the strengths of the singlet and triplet pairing interactions which arise from the exchange of spin and orbital fluctuations for a 2-…
A minimal two-band model for the superconducting Fe-pnictides
S. Raghu, Xiao-Liang Qi, Chao-Xing Liu +2
Following the discovery of the Fe-pnictide superconductors, LDA band structure calculations showed that the dominant contributions to the spectral weight near the Fermi energy came…