86 citations · 230 across the 12 of their papers we have counts for
12 papers
Harnessing the skyrmion Hall effect for low-power skyrmion transport in a tubular synthetic antiferromagnet
Ivan P. Miranda, Grzegorz J. Kwiatkowski, Jacob J. Mankenberg +4
We show that optimal control can turn the skyrmion Hall effect from a source of typically unwanted transverse motion into a mechanism for reducing Ohmic losses in skyrmion transpor…
Optimal field-free magnetization switching via spin-orbit torque on the surface of a topological insulator
Ivan P. Miranda, Grzegorz J. Kwiatkowski, Cecilia M. Holmqvist +6
We present an optimal field-free protocol for current-induced switching of a perpendicularly magnetized ferromagnetic insulator nanoelement on the surface of a topological insulato…
Quantum transport by spin-polarized edge states in graphene nanoribbons in the quantum spin Hall and quantum anomalous Hall regimes
Nezhat Pournaghavi, Cecilia Holmqvist, Anna Pertsova +1
Using the non-equilibrium Green\noindent 's function method and the Keldysh formalism, we study the effects of spin-orbit interactions and time-reversal symmetry breaking exchange…
Spin Superfluidity in Biaxial Antiferromagnetic Insulators
Alireza Qaiumzadeh, Hans Skarsvåg, Cecilia Holmqvist +1
Antiferromagnets may exhibit spin superfluidity since the dipole interaction is weak. We seek to establish that this phenomenon occurs in insulators such as NiO, which is a good sp…
Dynamical Coulomb blockade theory of plasmon-mediated light emission from a tunnel junction
Fei Xu, Cecilia Holmqvist, Gianluca Rastelli +1
Inelastic tunneling of electrons can generate the emission of photons with energies intuitively limited by the applied bias voltage. However, experiments indicate that more complex…
Non-equilibrium charge and spin transport in SFS point contacts
Cecilia Holmqvist, Wolfgang Belzig, Mikael Fogelström
The conventional Josephson effect may be modified by introducing spin-active scattering in the interface-layer of the junction. Here, we discuss a Josephson junction consisting of…
Spin superfluidity and long-range transport in thin-film ferromagnets
Hans Skarsvåg, Cecilia Holmqvist, Arne Brataas
In ferromagnets, magnons may condense into a single quantum state. Analogous to superconductors, this quantum state may support transport without dissipation. Recent works suggest…
Spin-polarized Shapiro steps and spin-precession-assisted multiple Andreev reflection
Cecilia Holmqvist, Mikael Fogelström, Wolfgang Belzig
We investigate the charge and spin transport of a voltage-biased superconducting point contact coupled to a nanomagnet. The magnetization of the nanomagnet is assumed to precess wi…
Spin transport and tunable Gilbert damping in a single-molecule magnet junction
Milena Filipovic, Cecilia Holmqvist, Federica Haupt +1
We study time-dependent electronic and spin transport through an electronic level connected to two leads and coupled with a single-molecule magnet via exchange interaction. The mol…
Spin-precession-assisted supercurrent in a superconducting quantum point contact coupled to a single-molecule magnet
C. Holmqvist, W. Belzig, M. Fogelström
The supercurrent of a quantum point contact coupled to a nanomagnet strongly depends on the dynamics of the nanomagnet's spin. We employ a fully microscopic model to calculate the…
Transport and magnetization dynamics in a superconductor/single-molecule magnet/superconductor junction
S. Teber, C. Holmqvist, M. Fogelstrom
We study dc-transport and magnetization dynamics in a junction of arbitrary transparency consisting of two spin-singlet superconducting leads connected via a single classical spin…
Emergence of a negative charging energy in a metallic dot capacitively coupled to a superconducting island
Cecilia Holmqvist, Denis Feinberg, Alex Zazunov
We consider the hybrid setup formed by a metallic dot, capacitively coupled to a superconducting island S connected to a bulk superconductor by a Josephson junction. Charge fluctua…