Spin effects in single-electron tunnelling

J Barnaś, I Weymann - Journal of Physics: Condensed Matter, 2008 - iopscience.iop.org
An important consequence of the discovery of giant magnetoresistance in metallic magnetic
multilayers is a broad interest in spin-dependent effects in electronic transport through …

Effects of different geometries on the conductance, shot noise, and tunnel magnetoresistance of double quantum dots

I Weymann - Physical Review B—Condensed Matter and Materials …, 2008 - APS
The spin-polarized transport through a coherent strongly coupled double quantum dot
(DQD) system is analyzed theoretically in the sequential and cotunneling regimes. Using the …

Spin-resolved Andreev transport through double-quantum-dot Cooper pair splitters

P Trocha, I Weymann - Physical Review B, 2015 - APS
We investigate the Andreev transport through double-quantum-dot Cooper pair splitters with
ferromagnetic leads. The analysis is performed with the aid of the real-time diagrammatic …

Electronic waiting-time distribution of a quantum-dot spin valve

B Sothmann - Physical Review B, 2014 - APS
We discuss the electronic waiting-time distribution of a quantum-dot spin valve, ie, a single-
level quantum dot coupled to two ferromagnetic electrodes with magnetizations that can …

Transport through quantum-dot spin valves containing magnetic impurities

B Sothmann, J König - Physical Review B—Condensed Matter and Materials …, 2010 - APS
We investigate transport through a single-level quantum dot coupled to noncollinearly
magnetized ferromagnets in the presence of localized spins in either the tunnel barrier or on …

Finite-temperature spintronic transport through Kondo quantum dots: Numerical renormalization group study

I Weymann - Physical Review B—Condensed Matter and Materials …, 2011 - APS
We study the temperature dependence of the linear conductance and tunnel
magnetoresistance of quantum dots coupled to ferromagnetic leads. Using the numerical …

Observation of spin-selective tunneling in SiGe nanocrystals

G Katsaros, VN Golovach, P Spathis, N Ares… - Physical Review Letters, 2011 - APS
Spin-selective tunneling of holes in SiGe nanocrystals contacted by normal-metal leads is
reported. The spin selectivity arises from an interplay of the orbital effect of the magnetic field …

Large voltage-tunable spin valve based on a double quantum dot

P Tulewicz, K Wrześniewski, S Csonka, I Weymann - Physical Review Applied, 2021 - APS
We study the spin-dependent transport properties of a spin valve based on a double
quantum dot. Each quantum dot is assumed to be strongly coupled to its own ferromagnetic …

Electrical detection of spin accumulation and relaxation in -type germanium

M Kawano, M Ikawa, K Santo, S Sakai, H Sato… - Physical Review …, 2017 - APS
We report on electrical measurements of spin-dependent transport of holes in all-epitaxial
CoFe/p-type germanium (p-Ge)/Fe 3 Si spin valves, where the hole concentration (ph) of the …

[HTML][HTML] Giant tunnel magnetoresistance induced by thermal bias

A Manaparambil, I Weymann - Journal of Magnetism and Magnetic …, 2023 - Elsevier
We analyze the spin-resolved transport and, in particular, the tunnel magnetoresistance of
an asymmetric ferromagnetic tunnel junction with an embedded quantum dot or molecule …