Carriers, quasi-particles, and collective excitations in halide perovskites

J Fu, S Ramesh, JW Melvin Lim, TC Sum - Chemical Reviews, 2023 - ACS Publications
Halide perovskites (HPs) are potential game-changing materials for a broad spectrum of
optoelectronic applications ranging from photovoltaics, light-emitting devices, lasers to …

A light-induced phononic symmetry switch and giant dissipationless topological photocurrent in ZrTe5

L Luo, D Cheng, B Song, LL Wang, C Vaswani… - Nature Materials, 2021 - nature.com
Dissipationless currents from topologically protected states are promising for disorder-
tolerant electronics and quantum computation. Here, we photogenerate giant anisotropic …

Halide perovskites: Advanced photovoltaic materials empowered by a unique bonding mechanism

M Wuttig, CF Schön, M Schumacher… - Advanced Functional …, 2022 - Wiley Online Library
Outstanding photovoltaic (PV) materials combine a set of advantageous properties including
large optical absorption and high charge carrier mobility, facilitated by small effective …

Light-driven Raman coherence as a nonthermal route to ultrafast topology switching in a Dirac semimetal

C Vaswani, LL Wang, DH Mudiyanselage, Q Li… - Physical Review X, 2020 - APS
A grand challenge underlies the entire field of topology-enabled quantum logic and
information science: how to establish topological control principles driven by quantum …

Light quantum control of persisting Higgs modes in iron-based superconductors

C Vaswani, JH Kang, M Mootz, L Luo, X Yang… - Nature …, 2021 - nature.com
The Higgs mechanism, ie, spontaneous symmetry breaking of the quantum vacuum, is a
cross-disciplinary principle, universal for understanding dark energy, antimatter and …

Terahertz second-harmonic generation from lightwave acceleration of symmetry-breaking nonlinear supercurrents

C Vaswani, M Mootz, C Sundahl, DH Mudiyanselage… - Physical Review Letters, 2020 - APS
We report terahertz (THz) light-induced second harmonic generation, in superconductors
with inversion symmetry that forbid even-order nonlinearities. The THz second harmonic …

Spin‐Selective Charge Transport in Lead‐Free Chiral Perovskites: The Key towards High‐Anisotropy in Circularly‐Polarized Light Detection

A Maiti, AJ Pal - Angewandte Chemie, 2022 - Wiley Online Library
A pair of zero‐dimensional lead‐free chiral perovskites is introduced towards the detection
of circularly polarized light (CPL). Although spin‐polarized carriers are generated in the …

Chirality manipulation of ultrafast phase switches in a correlated CDW-Weyl semimetal

B Cheng, D Cheng, T Jiang, W Xia, B Song… - Nature …, 2024 - nature.com
Light engineering of correlated states in topological materials provides a new avenue of
achieving exotic topological phases inaccessible by conventional tuning methods. Here we …

Spintronic Phenomena and Applications in Hybrid Organic–Inorganic Perovskites

Y Lu, Q Wang, L Han, Y Zhao, Z He… - Advanced Functional …, 2024 - Wiley Online Library
The spin degree of freedom in hybrid organic–inorganic perovskites (HOIPs) has become a
rapidly growing research topic in both HOIPs and spintronics fields due to its fundamental …

Terahertz nanoimaging of perovskite solar cell materials

RHJ Kim, Z Liu, C Huang, JM Park, SJ Haeuser… - ACS …, 2022 - ACS Publications
Direct visualization and quantitative evaluation of charge filling in grain boundary (GB) traps
of hybrid metal halide perovskites require dynamic conductivity imaging simultaneously at …