Topology and geometry under the nonlinear electromagnetic spotlight

Q Ma, AG Grushin, KS Burch - Nature materials, 2021 - nature.com
For many materials, a precise knowledge of their dispersion spectra is insufficient to predict
their ordered phases and physical responses. Instead, these materials are classified by the …

Topological materials for functional optoelectronic devices

H Chorsi, B Cheng, B Zhao, J Toudert… - Advanced Functional …, 2022 - Wiley Online Library
The recent realization of topology as a mathematical concept in condensed matter systems
has shattered Landau's widely accepted classification of phases by spontaneous symmetry …

Zero-bias mid-infrared graphene photodetectors with bulk photoresponse and calibration-free polarization detection

J Wei, Y Li, L Wang, W Liao, B Dong, C Xu… - Nature …, 2020 - nature.com
Bulk photovoltaic effect (BPVE), featuring polarization-dependent uniform photoresponse at
zero external bias, holds potential for exceeding the Shockley-Queisser limit in the efficiency …

Colossal mid-infrared bulk photovoltaic effect in a type-I Weyl semimetal

GB Osterhoudt, LK Diebel, MJ Gray, X Yang, J Stanco… - Nature materials, 2019 - nature.com
Broadband, efficient and fast conversion of light to electricity is crucial for sensing and clean
energy. The bulk photovoltaic effect (BPVE) is a second-order nonlinear optical effect that …

Nanodevices engineering and spin transport properties of MnBi2Te4 monolayer

Y An, K Wang, S Gong, Y Hou, C Ma, M Zhu… - npj Computational …, 2021 - nature.com
Abstract Two-dimensional (2D) magnetic materials are essential for the development of the
next-generation spintronic technologies. Recently, layered van der Waals (vdW) compound …

Chirality‐Dependent Circular Photogalvanic Effect in Enantiomorphic 2D Organic–Inorganic Hybrid Perovskites

PJ Huang, K Taniguchi, M Shigefuji… - Advanced …, 2021 - Wiley Online Library
The control of the optoelectronic properties of 2D organic–inorganic hybrid perovskite (2D‐
OIHP) lead halides is an increasingly prevalent topic. Herein, the observation of the circular …

Generation and manipulation of chiral terahertz waves in the three-dimensional topological insulator Bi2Te3

H Zhao, X Chen, C Ouyang, H Wang… - Advanced …, 2020 - spiedigitallibrary.org
Arbitrary manipulation of broadband terahertz waves with flexible polarization sha** at the
source has great potential in expanding numerous applications, such as imaging …

Electric Control of Helicity-Dependent Photocurrent and Surface Polarity Detection on Two-Dimensional Bi2O2Se Nanosheets

W Wu, J Yu, YH Chen, Y Liu, S Cheng, Y Lai, J Sun… - ACS …, 2023 - ACS Publications
Bismuth oxyselenide (Bi2O2Se) is a two-dimensional (2D) layered semiconductor material
with high electron Hall mobility and excellent environmental stability as well as strong spin …

Topological insulator metamaterials

HNS Krishnamoorthy, AM Dubrovkin, G Adamo… - Chemical …, 2023 - ACS Publications
Confinement of electromagnetic fields at the subwavelength scale via metamaterial
paradigms is an established method to engineer light–matter interaction in most common …

Topological insulator metamaterial with giant circular photogalvanic effect

X Sun, G Adamo, M Eginligil, HNS Krishnamoorthy… - Science …, 2021 - science.org
One of the most notable manifestations of electronic properties of topological insulators is
the dependence of the photocurrent direction on the helicity of circularly polarized optical …