Molecular beam epitaxy growth and scanning tunneling microscopy study of ultrathin films

JP Peng, JQ Guan, HM Zhang, CL Song, L Wang, K He… - Physical Review B, 2015 - APS
Molecular beam epitaxy is used to grow TiSe 2 ultrathin films on a graphitized SiC (0001)
substrate. TiSe 2 films proceed via a nearly layer-by-layer growth mode and exhibit two …

Ultrafast charge ordering by self-amplified exciton–phonon dynamics in TiSe2

C Lian, SJ Zhang, SQ Hu, MX Guan, S Meng - Nature communications, 2020 - nature.com
The origin of charge density waves (CDWs) in TiSe 2 has long been debated, mainly due to
the difficulties in identifying the timescales of the excitonic pairing and electron–phonon …

Bulk TMDCs: Review of structure and properties

AV Kolobov, J Tominaga, AV Kolobov… - Two-dimensional …, 2016 - Springer
Bulk (or 3D) TMDCs have been known and used for a very long time, but most of the older
applications (ie as solid lubricants) were related to their unique mechanical properties …

Electron-phonon coupling, critical temperatures, and gaps in Ising superconductors

S Patel, S Jena, A Taraphder - Physical Review B, 2024 - APS
Utilizing Migdal-Eliashberg theory of superconductivity within the first-principles calculations,
we work out the role of electron-phonon coupling (EPC) and anisotropic superconducting …

Charge-density wave induced by combined electron-electron and electron-phonon interactions in : A variational Monte Carlo study

H Watanabe, K Seki, S Yunoki - Physical Review B, 2015 - APS
To clarify the origin of a charge-density wave (CDW) phase in 1 T-TiSe 2, we study the
ground-state property of a half-filled two-band Hubbard model in a triangular lattice …

Exchange coupling–mediated broken symmetries in Ta2NiSe5 revealed from quadrupolar circular photogalvanic effect

H Jog, L Harnagea, EJ Mele, R Agarwal - Science Advances, 2022 - science.org
In low–electron density materials, interactions can lead to highly correlated quantum states
of matter. Ta2NiSe5, an excitonic insulator (EI) candidate, exists in a novel broken-symmetry …

Correlation between electronic and structural orders in

H Ueda, M Porer, JRL Mardegan, S Parchenko… - Physical review …, 2021 - APS
The correlation between electronic and crystal structures of 1 T-Ti Se 2 in the charge-density
wave (CDW) state is studied by x-ray diffraction in order to clarify basic properties in the …

Charge density wave and superconductivity in transition metal dichalcogenides

S Koley, N Mohanta, A Taraphder - The European Physical Journal B, 2020 - Springer
Competing orders in condensed matter give rise to the emergence of fascinating, new
phenomena. Here, we investigate the competition between superconductivity and charge …

On the origin of the anomalous peak in the resistivity of

MD Watson, AM Beales, PDC King - Physical Review B, 2019 - APS
Resistivity measurements of TiSe 2 typically show only a weak change in gradient at the
charge density wave transition at T CDW≈ 200 K, but more prominently feature a broad …

Interplay between charge density wave order and magnetic field in the nonmagnetic rare-earth tritelluride

A Pariari, S Koley, S Roy, R Singha, MS Laad… - Physical Review B, 2021 - APS
Charge density wave (CDW) states in solids bear an intimate connection to underlying
fermiology. Thus, modification of the latter by suitable perturbations provides an attractive …