9 papers
Probing lattice fluctuations using solid-state high-harmonic spectroscopy
Lance Hatch, Navdeep Rana, Shoushou He +8
Solid-state high-harmonic spectroscopy allows the study of strongly driven ultrafast electron dynamics. Microscopically, high harmonics are generated by strong-laser-field accelera…
Structural Phase Separation Couples to Charge-Density-Wave Formation in Kagome Metal FeGe
Boyang Zhao, Youngjun Ahn, Qinwen Deng +7
The intertwining of charge, spin, and lattice degrees of freedom underlies the emergent properties of correlated materials. A recent prominent example is the kagome metal FeGe, whi…
Anti-reflection coatings for highly anisotropic materials in the mid infrared
Hongyan Mei, Jin-Woo Cho, Jae-Seon Yu +6
We develop and optimize thin anti-reflection coatings (ARCs) for highly anisotropic materials in the mid infrared. Unlike conventional ARCs that assume nearly isotropic refractive…
Emergent Atomic Scale Polarisation Vortices in BaTiS3
Boyang Zhao, Gwan Yeong Jung, Shantanu Singh +21
Topological defects, such as vortices and skyrmions in magnetic and dipolar systems, can give rise to properties that are not observed in typical magnets and dielectrics. Here, we…
Crystal Growth of Chalcogenides and Oxy-Chalcogenides Using Chloride Exchange Reaction
Shantanu Singh, Boyang Zhao, Christopher E. Stevens +5
Chalcogenides and oxy-chalcogenides, including complex chalcogenides and transition metal dichalcogenides, are emerging semiconductors with direct or indirect band gaps within the…
Towards Atomic-Scale Control over Structural Modulations in Quasi-1D Chalcogenides for Colossal Optical Anisotropy
Guodong Ren, Shantanu Singh, Gwan Yeong Jung +10
Optically anisotropic materials are sought after for tailoring the polarization of light. Recently, colossal optical anisotropy was reported in a quasi-one-dimensional chalcogenide…