Angle, spin, and depth resolved photoelectron spectroscopy on quantum materials

PDC King, S Picozzi, RG Egdell… - Chemical …, 2020 - ACS Publications
The role of X-ray based electron spectroscopies in determining chemical, electronic, and
magnetic properties of solids has been well-known for several decades. A powerful …

Observation of bulk states and spin-polarized topological surface states in transition metal dichalcogenide Dirac semimetal candidate

B Ghosh, D Mondal, CN Kuo, CS Lue, J Nayak, J Fujii… - Physical Review B, 2019 - APS
We predict NiTe 2 to be a type-II Dirac semimetal based on ab initio calculations and explore
its bulk and spin-polarized surface states using spin-and angle-resolved photoemission …

Electronic and topological properties of group-10 transition metal dichalcogenides

MK Hooda, CS Yadav, D Samal - Journal of Physics: Condensed …, 2020 - iopscience.iop.org
The group 10 transition metal dichalcogenides (TMDs)(MX 2: M= Ni, Pd, Pt; X= S, Se, Te)
have attracted much attention in the last few decades because of observation of exotic …

Fermi-crossing Type-II Dirac fermions and topological surface states in NiTe2

S Mukherjee, SW Jung, SF Weber, C Xu, D Qian… - Scientific reports, 2020 - nature.com
Transition-metal dichalcogenides (TMDs) offer an ideal platform to experimentally realize
Dirac fermions. However, typically these exotic quasiparticles are located far away from the …

Strain engineering the topological type-II Dirac semimetal

PP Ferreira, ALR Manesco, TT Dorini, LE Correa… - Physical Review B, 2021 - APS
In the present work, we investigate the electronic and elastic properties in equilibrium and
under strain of the type-II Dirac semimetal NiTe 2 using density functional theory. Our results …

Hidden spin-orbital texture at the -located valence band maximum of a transition metal dichalcogenide semiconductor

OJ Clark, O Dowinton, MS Bahramy… - Nature …, 2022 - nature.com
Finding stimuli capable of driving an imbalance of spin-polarised electrons within a solid is
the central challenge in the development of spintronic devices. However, without the aid of …

: A candidate topological excitonic insulator with multiple band inversions

X Ma, G Wang, H Mao, Z Yuan, T Yu, R Liu, Y Peng… - Physical Review B, 2022 - APS
The electronic structures and topological properties of the orthorhombic and monoclinic
phases of the quasi-one-dimensional excitonic insulator Ta 2 NiSe 5 are investigated based …

Experimental Realization of a Three-Dimensional Dirac Semimetal Phase with a Tunable Lifshitz Transition in

J Sánchez-Barriga, OJ Clark, MG Vergniory… - Physical review …, 2023 - APS
Three-dimensional Dirac semimetals are an exotic state of matter that continue to attract
increasing attention due to the unique properties of their low-energy excitations. Here, by …

Bulk and surface electronic states in the dosed semimetallic

Z El Youbi, SW Jung, S Mukherjee, M Fanciulli… - Physical Review B, 2020 - APS
The dosing of layered materials with alkali metals has become a commonly used strategy in
ARPES experiments. However, precisely what occurs under such conditions, both …

Robust behavior and spin-texture stability of the topological surface state in Bi2Se3 upon deposition of gold

OJ Clark, F Freyse, LV Yashina, O Rader… - npj Quantum …, 2022 - nature.com
The Dirac point of a topological surface state (TSS) is protected against gapping by time-
reversal symmetry. Conventional wisdom stipulates, therefore, that only through …