Atomic Layer Deposition of FeSe2, CoSe2, and NiSe2

Z Guo, R Zhao, S Yan, W Xiong, J Zhu, K Lu… - Chemistry of …, 2021 - ACS Publications
Atomic layer deposition (ALD) of the iron-group transition-metal diselenides FeSe2, CoSe2,
and NiSe2 is reported for the first time. The ALD processes employ the associated metal …

Controlling Spin–Orbit Coupling to Tailor Type-II Dirac Bands

NH Lam, PL Nguyen, BK Choi, TT Ly, G Duvjir… - ACS …, 2022 - ACS Publications
NiTe2, a type-II Dirac semimetal with a strongly tilted Dirac band, has been explored
extensively to understand its intriguing topological properties. Here, using density functional …

Direct observation of kink evolution due to Hund's coupling on approach to metal-insulator transition in NiS2−xSex

BG Jang, G Han, I Park, D Kim, YY Koh, Y Kim… - Nature …, 2021 - nature.com
Understanding characteristic energy scales is a fundamentally important issue in the study
of strongly correlated systems. In multiband systems, an energy scale is affected not only by …

Role of Partial Vacancy and Structural Distortion in the Stability of Nonstoichiometric Phases Ni7−δInSe2–xSx (1.26 ≥ δ ≥ 0.94; 0 ≤ x ≤ 1.33)

A Dutta, K Buxi, A Lakshan, A Mondal, F Wang… - Inorganic …, 2023 - ACS Publications
This study explores the structure and stability of partly disordered sulfur-substituted Ni5.
74InSe2 (I 4/mmm, a= 3.6766 (1) Å, c= 18.8178 (10) Å, Z= 2). The structure of Ni7–δ InSe2–x …

Closing of the Mott gap near step edges in

Y Yasui, K Iwata, S Okazaki, S Miyasaka, Y Sugimoto… - Physical Review B, 2024 - APS
A prototypical charge-transfer type Mott insulator NiS 2 pyrite exhibits a metal-insulator
transition with bandwidth control. Recent discoveries on surface-specific electronic states on …

Clean realization of Hund's physics near the Mott transition: under pressure

I Park, BG Jang, DW Kim, JH Shim, G Kotliar - Physical Review B, 2024 - APS
Strong correlation effects caused by Hund's coupling have been actively studied during the
past decade. Hund's metal, strongly correlated while far from the Mott insulating limit, was …

Lattice dynamics and structural transition of the hyperhoneycomb iridate investigated by high-pressure Raman scattering

S Choi, HS Kim, HH Kim, A Krajewska, G Kim… - Physical Review B, 2020 - APS
We report a polarized Raman scattering study of the lattice dynamics of β− Li 2 IrO 3 under
hydrostatic pressures up to 7.62 GPa. At ambient pressure, β− Li 2 IrO 3 exhibits the …

Gating-induced Mott transition in

E Day-Roberts, RM Fernandes, T Birol - Physical Review B, 2023 - APS
NiS 2 has been widely regarded as a model system to study the bandwidth-controlled Mott
transition, as enabled by isovalent Se chemical substitution on the S sites. Motivated by …

Clean realization of the Hund physics near the Mott transition: under pressure

I Park, BG Jang, DW Kim, JH Shim, G Kotliar - arXiv preprint arXiv …, 2023 - arxiv.org
Strong correlation effects caused by Hund's coupling have been actively studied during the
past decade. Hund's metal, strongly correlated while far from the Mott insulating limit, was …

Two-step Mott transition in : studies and charge-spin percolation model

Q Sheng, T Kaneko, K Yamakawa, Z Guguchia… - Physical Review …, 2022 - APS
A pyrite system NiS 2− x Se x exhibits a bandwidth controlled Mott transition via (S, Se)
substitutions in a two-step process: the antiferromagnetic insulator (AFI) to antiferromagnetic …