Publications by authors named "Sebastian Fernandez-Mulligan"
Article Synopsis
- Tailoring magnetic orders in topological insulators is essential for achieving topological quantum phenomena, and finding materials with tunable magnetic properties while preserving nontrivial topology is a key challenge.!
- This study focuses on MnBiTe, revealing that it can exhibit disorder-enabled magnetic ground states, with ferromagnetic phases showing a small energy gap and antiferromagnetic phases having gapless surface states.!
- The research highlights the role of atomic defects, such as Mn vacancies, in adjusting the magnetic properties of MnBiTe, suggesting that defect-engineering could lead to the advancement of topological quantum phases at the nanoscale.!
We present the development of a multi-resolution photoemission spectroscopy (MRPES) setup, which probes quantum materials in energy, momentum, space, and time. This versatile setup integrates three light sources in one photoemission setup and can conveniently switch between traditional angle-resolved photoemission spectroscopy (ARPES), time-resolved ARPES (trARPES), and micrometer-scale spatially resolved ARPES. It provides a first-time all-in-one solution to achieve an energy resolution of <4 meV, a time resolution of <35 fs, and a spatial resolution of ∼10 μm in photoemission spectroscopy.
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