Spin transport in non-Hermitian quantum systems

LS Lima - Scientific Reports, 2023 - nature.com
Transport in non-Hermitian quantum systems is studied. The goal is a better understanding
of transport in non-Hermitian systems like the Lieb lattice due to its flat bands and the …

Antiferromagnetic and ferromagnetic spintronics and the role of in-chain and inter-chain interaction on spin transport in the Heisenberg ferromagnet

LS Lima - Scientific Reports, 2021 - nature.com
Spin-transport and current-induced torques in ferromagnet heterostructures given by a
ferromagnetic domain wall are investigated. Furthermore, the continuum spin conductivity is …

Spin transport across antiferromagnets induced by the spin Seebeck effect

J Cramer, U Ritzmann, BW Dong… - Journal of Physics D …, 2018 - iopscience.iop.org
For prospective spintronics devices based on the propagation of pure spin currents,
antiferromagnets are an interesting class of materials that potentially entail a number of …

Spin transport of a doped Mott insulator in moiré heterostructures

EC Regan, Z Lu, D Wang, Y Zhang, T Devakul… - Nature …, 2024 - nature.com
Moiré superlattices of semiconducting transition metal dichalcogenide heterobilayers are
model systems for investigating strongly correlated electronic phenomena. Specifically …

[图书][B] Theoretical tools for spin models in magnetic systems

AST Pires - 2021 - iopscience.iop.org
The book is dedicated to the study of theoretical tools in spin models in magnetism. The
book presents the basic tools to treat spin models in magnetic systems such as: spin waves …

Spin injection and spin transport in paramagnetic insulators

S Okamoto - Physical Review B, 2016 - APS
We investigate the spin injection and the spin transport in paramagnetic insulators described
by simple Heisenberg interactions using auxiliary particle methods. Some of these methods …

Spin transport in antiferromagnets in one and two dimensions calculated using the Kubo formula

AST Pires, LS Lima - Physical Review B—Condensed Matter and Materials …, 2009 - APS
We study spin transport in one-and two-dimensional Heisenberg antiferromagnets. In one
dimension we take spin S= 1. The longitudinal spin conductivity is calculated using the Kubo …

Non-Hermitian linear-response theory for spin diffusion in quantum systems

LS Lima - Scientific Reports, 2024 - nature.com
Spin transport theory of non-Hermitian quantum systems, where the non-Hermiticity led to a
series of exotic phenomena when the system experiences dissipation to an environment is …

Theory of conserved spin current and its application to a two-dimensional hole gas

P Zhang, Z Wang, J Shi, D Xiao, Q Niu - Physical Review B—Condensed …, 2008 - APS
We present a detailed microscopic theory of the conserved spin current which is introduced
by us [Phys. Rev. Lett. 96, 076604 (2006)] and satisfies the spin continuity equation even for …

Low‐temperature spin transport in the S = 1 one‐ and two‐dimensional antiferromagnets with Dzyaloshinskii–Moriya interaction

LS Lima - physica status solidi (b), 2012 - Wiley Online Library
We present a study of the spin transport at low‐temperature in the quantum S= 1 one‐and
two‐dimensional Heisenberg antiferromagnet with the Dzyaloshinskii–Moriya interaction …