Raman spectroscopy is now an extremely important technique for the analysis of carbon-
based materials. It is demonstrated how it can be used to give a unique insight into …

Overlaying two atomic layers with a slight lattice mismatch or at a small rotation angle
creates a moiré superlattice, which has properties that are markedly modified from (and at …

Ferromagnetism is most common in transition metal compounds where electrons occupy
highly localized d orbitals. However, ferromagnetic order may also arise in low-density two …

Graphene-based materials exhibit remarkable electronic, optical, and mechanical
properties, which has resulted in both high scientific interest and huge potential for a variety …

Magnetism in two dimensions is one of the most intriguing and alluring phenomena in
condensed matter physics. Atomically thin 2D materials have emerged as a promising …

Graphene, since the demonstration of its easy isolation by the exfoliation of graphite in 2004
by Novoselov, Geim and co-workers, has been attracting enormous attention in the scientific …

In situ strain photoluminescence (PL) and Raman spectroscopy have been employed to
exploit the evolutions of the electronic band structure and lattice vibrational responses of …

Single‐and few‐layer transition‐metal dichalcogenide nanosheets, such as WSe2, TaS2,
and TaSe2, are prepared by mechanical exfoliation. A Raman microscope is employed to …

Raman spectroscopy of transition metal dichalcogenides (TMDs) is reviewed based on our
recent theoretical and experimental works. First, we discuss the semi-classical and quantum …

The quantum confinement in atomic scale and the presence of interlayer coupling in
multilayer make the electronic and optical properties of 2D materials (2DMs) be dependent …