Topological frustration induces unconventional magnetism in a nanographene

S Mishra, D Beyer, K Eimre, S Kezilebieke… - Nature …, 2020 - nature.com
The chemical versatility of carbon imparts manifold properties to organic compounds, where
magnetism remains one of the most desirable but elusive. Polycyclic aromatic hydrocarbons …

Ab initio electronic structure calculations based on numerical atomic orbitals: Basic fomalisms and recent progresses

P Lin, X Ren, X Liu, L He - Wiley Interdisciplinary Reviews …, 2024 - Wiley Online Library
The numerical atomic orbital (NAO) basis sets offer a computationally efficient option for
electronic structure calculations, as they require fewer basis functions compared with other …

Large magnetic exchange coupling in rhombus-shaped nanographenes with zigzag periphery

S Mishra, X Yao, Q Chen, K Eimre, O Gröning… - Nature …, 2021 - nature.com
Nanographenes with zigzag edges are predicted to manifest non-trivial π-magnetism
resulting from the interplay of concurrent electronic effects, such as hybridization of localized …

Coexistence of Negative and Positive Photoconductivity in Few‐Layer PtSe2 Field‐Effect Transistors

A Grillo, E Faella, A Pelella, F Giubileo… - Advanced Functional …, 2021 - Wiley Online Library
Abstract Platinum diselenide (PtSe2) field‐effect transistors with ultrathin channel regions
exhibit p‐type electrical conductivity that is sensitive to temperature and environmental …

Dark states of electrons in a quantum system with two pairs of sublattices

Y Chung, M Kim, Y Kim, S Cha, JW Park, J Park, Y Yi… - Nature Physics, 2024 - nature.com
A quantum state of matter that is forbidden to interact with photons and is therefore
undetectable by spectroscopic means is called a dark state. This basic concept can be …

Multipurpose black-phosphorus/hBN heterostructures

GC Constantinescu, NDM Hine - Nano letters, 2016 - ACS Publications
Black phosphorus (BP) has recently emerged as a promising semiconducting two-
dimensional material. However, its viability is threatened by its instability in ambient …

Quantum confinement-induced semimetal-to-semiconductor evolution in large-area ultra-thin PtSe2 films grown at 400 °C

L Ansari, S Monaghan, N McEvoy… - npj 2D Materials and …, 2019 - nature.com
In this work, we present a comprehensive theoretical and experimental study of quantum
confinement in layered platinum diselenide (PtSe2) films as a function of film thickness. Our …

Large anomalous Hall effect induced by weak ferromagnetism in the noncentrosymmetric antiferromagnet

H Tanaka, S Okazaki, K Kuroda, R Noguchi, Y Arai… - Physical Review B, 2022 - APS
We study the mechanism of the exceptionally large anomalous Hall effect (AHE) in the
noncentrosymmetric antiferromagnet Co Nb 3 S 6 by angle-resolved photoemission …

Structural phase transition and material properties of few-layer monochalcogenides

M Mehboudi, BM Fregoso, Y Yang, W Zhu… - Physical review …, 2016 - APS
GeSe and SnSe monochalcogenide monolayers and bilayers undergo a two-dimensional
phase transition from a rectangular unit cell to a square unit cell at a critical temperature T c …

Layer -projection and unfolding electronic bands at interfaces

M Chen, M Weinert - Physical Review B, 2018 - APS
The k-projection method provides an approach to separate the contributions from different
constituents in heterostructure systems, and can act as an aid to connect the results of …