Probing functional structures, defects, and interfaces of 2D transition metal dichalcogenides by electron microscopy

R Luo, M Gao, C Wang, J Zhu… - Advanced Functional …, 2024 - Wiley Online Library
Abstract 2D transition metal dichalcogenides (TMDs) exhibit remarkable properties that are
strongly influenced by their atomic structures, as well as by various types of defects and …

Ultrafast and nanoscale energy transduction mechanisms and coupled thermal transport across interfaces

A Giri, SG Walton, J Tomko, N Bhatt, MJ Johnson… - ACS …, 2023 - ACS Publications
The coupled interactions among the fundamental carriers of charge, heat, and
electromagnetic fields at interfaces and boundaries give rise to energetic processes that …

Single-atom vibrational spectroscopy with chemical-bonding sensitivity

M Xu, DL Bao, A Li, M Gao, D Meng, A Li, S Du, G Su… - Nature Materials, 2023 - nature.com
Correlation of lattice vibrational properties with local atomic configurations in materials is
essential for elucidating functionalities that involve phonon transport in solids. Recent …

Atomic scale disorder and reconstruction in bulk infinite-layer nickelates lacking superconductivity

K Hu, Q Li, D Song, Y Jia, Z Liang, S Wang… - Nature …, 2024 - nature.com
The recent discovery of superconductivity in infinite-layer nickelate films has sparked
significant interest and expanded the realm of superconductors, in which the infinite-layer …

Interfacial interaction and intense interfacial ultraviolet light emission at an incoherent interface

X Yan, Y Jiang, Q **, T Yao, W Wang, A Tao… - Nature …, 2023 - nature.com
Incoherent interfaces with large mismatches usually exhibit very weak interfacial interactions
so that they rarely generate intriguing interfacial properties. Here we demonstrate …

Absence of critical thickness for polar skyrmions with breaking the Kittel's law

FH Gong, YL Tang, YJ Wang, YT Chen, B Wu… - Nature …, 2023 - nature.com
The period of polar domain (d) in ferroics was commonly believed to scale with
corresponding film thicknesses (h), following the classical Kittel's law of d∝ h. Here, we …

Atomic imaging and optical properties of InAs/In0. 5Ga0. 5As0. 5Sb0. 5 type II superlattice

C Shi, D Wang, W Li, X Fang, B Zhang, D Wang… - Applied Physics …, 2024 - pubs.aip.org
High-quality III–V quantum structures, advanced epitaxial technologies, and characterization
methods are essential to drive the development of infrared optoelectronic materials and …

Nanoscale Localized Phonons at Al2O3 Grain Boundaries

J Yan, R Shi, J Wei, Y Li, R Qi, M Wu, X Li, B Feng… - Nano Letters, 2024 - ACS Publications
Nanoscale defects like grain boundaries (GBs) would introduce local phonon modes and
affect the bulk materials' thermal, electrical, optical, and mechanical properties. It is highly …

Phonon modes and electron–phonon coupling at the FeSe/SrTiO3 interface

H Yang, Y Zhou, G Miao, J Rusz, X Yan, F Guzman… - Nature, 2024 - nature.com
The remarkable increase in superconducting transition temperature (T c) observed at the
interface of one-unit-cell FeSe films on SrTiO3 substrates (1 uc FeSe/STO) has attracted …

Atomic-scale probing of heterointerface phonon bridges in nitride semiconductor

YH Li, RS Qi, RC Shi, JN Hu, ZT Liu, YW Sun… - Proceedings of the …, 2022 - pnas.org
Interface phonon modes that are generated by several atomic layers at the heterointerface
play a major role in the interface thermal conductance for nanoscale high-power devices …