[HTML][HTML] Spintronic sources of ultrashort terahertz electromagnetic pulses

TS Seifert, L Cheng, Z Wei, T Kampfrath, J Qi - Applied Physics Letters, 2022 - pubs.aip.org
Spintronic terahertz emitters are broadband and efficient sources of terahertz radiation,
which emerged at the intersection of ultrafast spintronics and terahertz photonics. They are …

[HTML][HTML] Studying spin–charge conversion using terahertz pulses

L Cheng, Z Li, D Zhao, EEM Chia - Apl Materials, 2021 - pubs.aip.org
Spin–charge conversion is a spin–orbit coupling phenomena where electrical currents can
generate transverse spin currents and vice versa. It is one of the central topics in spintronics …

Spin-orbit coupling induced valley Hall effects in transition-metal dichalcogenides

BT Zhou, K Taguchi, Y Kawaguchi, Y Tanaka… - Communications …, 2019 - nature.com
In transition-metal dichalcogenides, electrons in the K-valleys can experience both Ising and
Rashba spin-orbit couplings. In this work, we show that the coexistence of Ising and Rashba …

Highly tunable nonlinear Hall effects induced by spin-orbit couplings in strained polar transition-metal dichalcogenides

BT Zhou, CP Zhang, KT Law - Physical Review Applied, 2020 - APS
Recently, signatures of nonlinear Hall effects induced by Berry-curvature dipoles have been
found in atomically thin 1 T′/T dW Te 2. In this paper, we show that in strained polar …

Second-order topological corner states in zigzag graphene nanoflake with different types of edge magnetic configurations

CM Miao, QF Sun, YT Zhang - Physical Review B, 2022 - APS
We study the energy spectrum and energy levels of the extended Kane-Mele model with
magnetic atoms on their zigzag edges. It is demonstrated that the edges of ferromagnetism …

The valley Nernst effect in WSe2

MT Dau, C Vergnaud, A Marty, C Beigné… - Nature …, 2019 - nature.com
The Hall effect can be extended by inducing a temperature gradient in lieu of electric field
that is known as the Nernst (-Ettingshausen) effect. The recently discovered spin Nernst …

Moiré flat Chern bands and correlated quantum anomalous Hall states generated by spin-orbit couplings in twisted homobilayer

BT Zhou, S Egan, M Franz - Physical Review Research, 2022 - APS
We predict that in a twisted homobilayer of transition-metal dichalcogenide MoS 2, spin-orbit
coupling in the conduction band states from±K valleys, can give rise to moiré flat bands with …

Tunable topological Nernst effect in two-dimensional transition-metal dichalcogenides

G Sharma - Physical Review B, 2018 - APS
Two-dimensional semiconducting transition metal dichalcogenides (TMDs) exhibit an
intrinsic Ising spin-orbit coupling (SOC) along with a valley contrasting Berry curvature …

Switch effect and 0- transition in Ising superconductor Josephson junctions

Q Cheng, QF Sun - Physical Review B, 2019 - APS
We theoretically study the Josephson current in Ising superconductor–half-metal–Ising
superconductor junctions. By solving the Bogoliubov–de Gennes equations, the Josephson …

Tunability of Andreev levels in a spin-active Ising superconductor/half-metal Josephson junction

S Acharjee, A Boruah, N Dutta… - … Science and Technology, 2023 - iopscience.iop.org
We study the Andreev levels, supercurrent and tunnelling conductance in a clean Ising
superconductor (ISC)/half-metal (HM)/ISC Josephson junction (JJ) with spin-active …