Probing topological quantum matter with scanning tunnelling microscopy

JX Yin, SH Pan, M Zahid Hasan - Nature Reviews Physics, 2021 - nature.com
The search for topological phases of matter is evolving towards strongly interacting systems,
including magnets and superconductors, where exotic effects emerge from the quantum …

State with spontaneously broken time-reversal symmetry above the superconducting phase transition

V Grinenko, D Weston, F Caglieris, C Wuttke, C Hess… - Nature Physics, 2021 - nature.com
The most well-known example of an ordered quantum state—superconductivity—is caused
by the formation and condensation of pairs of electrons. Fundamentally, what distinguishes …

Strong correlation between superconductivity and ferromagnetism in an Fe-chalcogenide superconductor

NJ McLaughlin, H Wang, M Huang, E Lee-Wong… - Nano Letters, 2021 - ACS Publications
The interplay among topology, superconductivity, and magnetism promises to bring a
plethora of exotic and unintuitive behaviors in emergent quantum materials. The family of Fe …

Revealing the Origin of Time-Reversal Symmetry Breaking in Fe-Chalcogenide Superconductor

C Farhang, N Zaki, J Wang, G Gu, PD Johnson, J Xia - Physical Review Letters, 2023 - APS
Recently, evidence has emerged in the topological superconductor Fe-chalcogenide FeTe
1− x Se x for time-reversal symmetry breaking (TRSB), the nature of which has strong …

Enhanced Nernst effect above in the quasi-two-dimensional iron pnictide superconductor

M Li, Z Wang, D Zhao, Y Liu, C Jiang, T Wu, Q Tao… - Physical Review B, 2022 - APS
As a new type of iron pnictide superconductors, CsCa 2 Fe 4 As 4 F 2, featured by its unique
FeAs bilayer, presents a quasi-two-dimensional characteristic which distinguishes itself from …

Experimental setup for the Seebeck and Nernst coefficient measurements

S Sharma, CS Yadav - Review of Scientific Instruments, 2020 - pubs.aip.org
A new experimental setup is designed for the measurement of Seebeck and Nernst
coefficients on the single crystal flakes and polycrystalline samples. The setup utilizes the …

Possible Kondo scattering and its signature in Seebeck coefficient in topological superconductor Fe1+ yTe0. 55Se0. 45

Y Yang, G Tang, C Yao, X Yan, Y Wang, X Xu… - Journal of Magnetism …, 2022 - Elsevier
Abstract Fe 1+ y Te 1-x Se x is an iconic topological superconductor with Majorana zero
mode in the Abrikosov vortex core, holding potential for topological quantum computing …

Observation of Superconductivity Induced Ferromagnetism in an Fe-Chalcogenide Superconductor

NJ McLaughlin, H Wang, M Huang… - arXiv preprint arXiv …, 2021 - arxiv.org
The interplay among topology, superconductivity, and magnetism promises to bring a
plethora of exotic and unintuitive behaviors in emergent quantum materials. The family of Fe …