26 citations · 120 across the 20 of their papers we have counts for
20 papers
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…
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…
Phase-change materials for volatile threshold resistive switching and neuronal device applications
Huandong Chen, Jayakanth Ravichandran
Volatile threshold resistive switching and neuronal oscillations in phase-change materials, specifically those undergoing metal-to-insulator transitions, offer unique attributes su…
Electrical contacts for high performance optoelectronic devices of BaZrS3 single crystals
Huandong Chen, Shantanu Singh, Mythili Surendran +3
Chalcogenide perovskites such as BaZrS3 are promising candidates for next generation optoelectronics such as photodetectors and solar cells. Compared to widely studied polycrystall…
A strategy for fabricating micro-scale freestanding single-crystalline complex oxide device arrays
Huandong Chen, Yang Liu, Harish Kumarasubramanian +2
We present a general fabrication strategy for freestanding single-crystalline complex oxide device arrays via wet chemical etching-based microfabrication processes and epitaxial li…
Strain-driven stabilization of a room-temperature chiral multiferroic with coupled ferroaxial and ferroelectric order
Guodong Ren, Gwan Yeong Jung, Huandong Chen +9
Noncollinear ferroic materials are sought after as testbeds to explore the intimate connections between topology and symmetry, which result in electronic, optical and magnetic func…
Kinetic control of ferroelectricity in ultrathin epitaxial Barium Titanate capacitors
Harish Kumarasubramanian, Prasanna Venkat Ravindran, Ting-Ran Liu +11
Ferroelectricity is characterized by the presence of spontaneous and switchable macroscopic polarization. Scaling limits of ferroelectricity have been of both fundamental and techn…
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…
A system built for both deterministic transfer processes and contact photolithography
Huandong Chen, Jayakanth Ravichandran
A home-built compact system that functions as both a transfer stage for deterministic transfer processes and a mask aligner for contact photolithography, is constructed. The precis…
Molten flux growth of single crystals of quasi-1D hexagonal chalcogenide BaTiS3
Huandong Chen, Shantanu Singh, Hongyan Mei +7
BaTiS3, a quasi-1D complex chalcogenide, has gathered considerable scientific and technological interest due to its giant optical anisotropy and electronic phase transitions. Howev…
A hybrid pulsed laser deposition approach to grow thin films of chalcogenides
Mythili Surendran, Shantanu Singh, Huandong Chen +4
Vapor-pressure mismatched materials such as transition metal chalcogenides have emerged as electronic, photonic, and quantum materials with scientific and technological importance.…
Photoconductive Effects in Single Crystals of BaZrS
Boyang Zhao, Huandong Chen, Ragib Ahsan +11
Chalcogenide perovskites, such as BaZrS, are emerging semiconductors with potential for high photovoltaic power conversion efficiency. The role of defects in the efficiency of…
Giant Modulation of Refractive Index from Picoscale Atomic Displacements
Boyang Zhao, Guodong Ren, Hongyan Mei +21
Structural disorder has been shown to enhance and modulate magnetic, electrical, dipolar, electrochemical, and mechanical properties of materials. However, the possibility of obtai…
Charge-density-wave resistive switching and voltage oscillations in ternary chalcogenide BaTiS3
Huandong Chen, Nan Wang, Hefei Liu +2
Phase change materials, which show different electrical characteristics across the phase transitions, have attracted considerable research attention for their potential electronic…
Colossal optical anisotropy from atomic-scale modulations
Hongyan Mei, Guodong Ren, Boyang Zhao +17
In modern optics, materials with large birefringence (Δn, where n is the refractive index) are sought after for polarization control (e.g. in wave plates, polarizing beam splitters…
A Polymeric Planarization Strategy for Versatile Multi-terminal Electrical Transport Studies on Small, Bulk Quantum Materials
Huandong Chen, Amir Avishai, Jayakanth Ravichandran
We report a device fabrication strategy of making multi-terminal electrical contacts on small (< 1 mm) bulk quantum materials using lithography-based techniques for electrical tran…
Quasi-epitaxial growth of BaTiS films
M. Surendran, B. Zhao, G. Ren +7
Perovskite chalcogenides have emerged as a new class of semiconductors with tunable band gap in the visible-infrared region. High quality thin films are critical to understand the…
Unconventional Charge-density-wave Order in a Dilute d-band Semiconductor
Huandong Chen, Batyr Ilyas, Boyang Zhao +27
Electron-lattice coupling effects in low dimensional materials give rise to charge density wave (CDW) order and phase transitions. These phenomena are critical ingredients for supe…
Orientation Controlled Anisotropy in Single Crystals of Quasi-1D BaTiS3
Boyang Zhao, Md Shafkat Bin Hoque, Gwan Yeong Jung +17
Low-dimensional materials with chain-like (one-dimensional) or layered (twodimensional) structures are of significant interest due to their anisotropic electrical, optical, thermal…
Epitaxial Thin Films of a Chalcogenide Perovskite
Mythili Surendran, Huandong Chen, Boyang Zhao +9
Chalcogenide perovskites have emerged as a new class of electronic materials, but fundamental properties and applications of chalcogenide perovskites remain limited by the lack of…