Helical nuclear spin order in a strip of stripes in the quantum Hall regime

T Meng, P Stano, J Klinovaja, D Loss - The European Physical Journal B, 2014 - Springer
We investigate nuclear spin effects in a two-dimensional electron gas in the quantum Hall
regime modeled by a weakly coupled array of interacting quantum wires. We show that the …

Synthesizing 2h/e2 resistance plateau at the first Landau level confined in a quantum point contact

MH Fauzi, K Nakagawara, K Hashimoto… - Communications …, 2023 - nature.com
A comprehensive understanding of quantum Hall edge transmission, especially a hole-
conjugate of a Laughlin state such as a 2/3 state, is critical for advancing fundamental …

Large Nuclear Spin Polarization in Gate-Defined Quantum Dots Using<? format?> a Single-Domain Nanomagnet

G Petersen, EA Hoffmann, D Schuh, W Wegscheider… - Physical review …, 2013 - APS
The electron-nuclei (hyperfine) interaction is central to spin qubits in solid state systems. It
can be a severe decoherence source but also allows dynamic access to the nuclear spin …

Size dependence-and induced transformations-of fractional quantum Hall effects under tilted magnetic fields

UK Wijewardena, TR Nanayakkara, A Kriisa… - Scientific Reports, 2022 - nature.com
Two-dimensional electron systems subjected to high transverse magnetic fields can exhibit
Fractional Quantum Hall Effects (FQHE). In the GaAs/AlGaAs 2D electron system, a double …

Interplay of valley polarization and dynamic nuclear polarization in 2D transition metal dichalcogenides

G Sharma, SE Economou, E Barnes - Physical Review B, 2017 - APS
The interplay of Ising spin-orbit coupling and nontrivial band topology in transition metal
dichalcogenides (TMDs) produces anomalous transport and optical properties that are very …

Marginal metallic state at a fractional filling of'8/5'and'4/3'of Landau levels in the GaAs/AlGaAs 2D electron system

RG Mani, UK Wijewardena, TR Nanayakkara… - Scientific Reports, 2021 - nature.com
A metallic state with a vanishing activation gap, at a filling factor ν= 8/5 in the untilted
specimen with n= 2× 10 11 cm-2, and at ν= 4/3 at n= 1.2× 10 11 cm-2 under a θ= 66 0 tilted …

Resistively detected NMR as a probe of the topological nature of conducting edge/surface states

Z Zhuang, VF Mitrović, JB Marston - Physical Review B, 2021 - APS
Electron spins in edge or surface modes of topological insulators (TIs) with strong spin-orbit
coupling cannot be directly manipulated with microwaves due to the locking of electron spin …

Resistively detected NMR line shapes in a quasi-one-dimensional electron system

MH Fauzi, A Singha, MF Sahdan, M Takahashi, K Sato… - Physical Review B, 2017 - APS
We observe variation in the resistively detected nuclear magnetic resonance (RDNMR) line
shapes in quantum Hall breakdown. The breakdown occurs locally in a gate-defined …

Landauer-Büttiker approach for hyperfine mediated electronic transport in the integer quantum Hall regime

A Singha, MH Fauzi, Y Hirayama, B Muralidharan - Physical Review B, 2017 - APS
The interplay of spin-polarized electronic edge states with the dynamics of the host nuclei in
quantum Hall systems presents rich and nontrivial transport physics. Here, we develop a …

Current-induced nuclear spin depolarization at Landau level filling factor 1/2

YQ Li, V Umansky, K von Klitzing, JH Smet - Physical Review B—Condensed …, 2012 - APS
In this work, we demonstrate that significant changes in electron temperature and nuclear
spin polarization can be created by applying an electric current in a two-dimensional …