6 papers
Intrinsic Even-Odd Thickness-Driven Anomalous Hall in Epitaxial MnBi2Te4 Thin Films
Debarghya Mallick, Simon Kim, An-Hsi Chen +12
We demonstrate precise control of magnetism in MnBi2Te4 thin films through careful synthesis by molecular beam epitaxy, achieving minimal defects and accurate layer thickness contr…
Active Learning for Tractable and Reproducible Pulsed Laser Deposition
Jackson S. Bentley, Christopher Rouleau, Ilia N. Ivanov +8
This paper shows how data-driven machine learning approaches can improve growth control, reproducibility, and physical insight in the pulsed laser deposition (PLD) growth of correl…
Nucleation and Antiphase Twin Control in BiSe via Step-Terminated AlO Substrates
Alessandro R. Mazza, Jia Shi, Gabriel A. Vázquez-Lizardi +18
The epitaxial synthesis of high-quality 2D layered materials is an essential driver of both fundamental physics studies and technological applications. BiSe, a prototypical…
Nanosculpting lateral weak link junctions in superconducting Fe(Te,Se)/Bi2Te3 with focused Si++ ions and implications on vortex pinning
Debarghya Mallick, Sujoy Ghosh, An Hsi Chen +10
Superconductor-normal-superconductor (SC-N-SC) weak links enable Cooper-pair tunneling and serve as Josephson junctions (JJs) used in modern superconducting qubits. Conventional JJ…
Programmable phase selection between altermagnetic and non-centrosymmetric polymorphs of MnTe on InP via molecular beam epitaxy
An-Hsi Chen, Parul R. Raghuvanshi, Jacob Cook +19
Phase selecting nearly degenerate crystalline polymorphs during epitaxial growth can be challenging yet is critical to targeting physical properties for specific applications. Here…
Reversible Modification of Rashba States in Topological Insulators at Room Temperature by Edge Functionalization
Wonhee Ko, Seoung-Hun Kang, Qiangsheng Lu +7
Quantum materials with novel spin textures from strong spin-orbit coupling (SOC) are essential components for a wide array of proposed spintronic devices. Topological insulators ha…