Dynamical stability of two-dimensional metals in the periodic table

S Ono - Physical Review B, 2020 - APS
We study the dynamical stability of two-dimensional (2D) metals from Li to Pb in the periodic
table. Using a first-principles approach, we calculate the phonon band structure of 2D metals …

A simple strategy to improve the sensitivity of probe molecules on SERS substrates

C Sun, T Chen, W Ruan, YM Jung, Q Cong, B Zhao - Talanta, 2019 - Elsevier
In this work, we report a simple strategy to improve the detection sensitivity as well as the
spectral quality of probe molecules on surface-enhanced Raman scattering (SERS) …

Beyond ideal two-dimensional metals: Edges, vacancies, and polarizabilities

J Nevalaita, P Koskinen - Physical Review B, 2018 - APS
Recent experimental discoveries of graphene-stabilized patches of two-dimensional (2D)
metals have motivated also their computational studies. However, so far the studies have …

Metastability relationship between two-and three-dimensional crystal structures: a case study of the Cu-based compounds

S Ono - Scientific Reports, 2021 - nature.com
Some of the three-dimensional (3D) crystal structures are constructed by stacking two-
dimensional (2D) layers. To study whether this geometric concept, ie, using 2D layers as …

Comprehensive search for buckled honeycomb binary compounds based on noble metals (Cu, Ag, and Au)

S Ono - Physical Review Materials, 2021 - APS
Honeycomb structure has frequently been observed in two-dimensional (2D) materials.
CuAu in the buckled honeycomb (BHC) structure was synthesized recently, which is a case …

A new route of synthesizing atomically thin 2D materials embedded in bulk oxides

J Hwang, J Kim, Y Nie, BH Lee, J Ahn, J Kim… - Journal of Applied …, 2021 - pubs.aip.org
Conventional mechanical or chemical exfoliation approach of 2D material synthesis is
largely dependent on the inherent structure of the parent material, ie, whether it is a layered …

Dynamic band alignment modulation of ultrathin WO x/ZnO stack for high on/off ratio field-effect switching applications

HI Lee, J Park, YJ Kim, S Heo, J Hwang, SM Kim, Y Lee… - Nanoscale, 2020 - pubs.rsc.org
A two-dimensional (2D) WOx/ZnO stack reveals a unique carrier transport behavior, which
can be utilized as a novel device element to achieve a very high on/off ratio (> 106) and an …