Blar i Institutt for fysikk på tidsskrift "Physical Review B"
Viser treff 1-11 av 11
-
Controlling the superconducting transition by spin-orbit coupling
(Journal article; Peer reviewed, 2018)Whereas considerable evidence exists for the conversion of singlet Cooper pairs into triplet Cooper pairs in the presence of inhomogeneous magnetic fields, recent theoretical proposals have suggested an alternative way to ... -
Electro-optical properties of phoshorene quantum dots
(Journal article; Peer reviewed, 2017)We study electronic and optical properties of single layer phosphorene quantum dots with various shapes, sizes, and edge types (including disordered edges) subjected to an external electric field normal to the structure ... -
Leakage and dephasing in 28Si-based exchange-only spin qubits
(Journal article; Peer reviewed, 2018)Exchange-only spin qubits hosted in 28Si-based triple quantum dots do not suffer from decoherence caused by randomly fluctuating nuclear-spin ensembles and can be relatively robust against electrical noise when operated ... -
Optical selection rules of zigzag graphene nanoribbons
(Journal article; Peer reviewed, 2017)We present an analytical tight-binding theory of the optical properties of graphene nanoribbons with zigzag edges. Applying the transfer matrix technique to the nearest-neighbor tight-binding Hamiltonian, we derive analytical ... -
Spin-transfer antiferromagnetic resonance
(Journal article; Peer reviewed, 2018)Currents can induce spin excitations in antiferromagnets, even when they are insulating. We investigate how spin transfer can cause antiferromagnetic resonance in bilayers and trilayers that consist of one antiferromagnetic ... -
Superconductivity induced by interfacial coupling to magnons
(Journal article; Peer reviewed, 2018)We consider a thin normal metal sandwiched between two ferromagnetic insulators. At the interfaces, the exchange coupling causes electrons within the metal to interact with magnons in the insulators. This electron-magnon ... -
Supercurrent vortex pinball via a triplet Cooper pair inverse Edelstein effect
(Journal article, 2017)We consider the Josephson effect through a thin spin-orbit coupled layer in the presence of an exchange field h, and discover a set of supercurrent vortices appearing in the system which can be controllably moved around ... -
Tunable superconducting critical temperature in ballistic hybrid structures with strong spin-orbit coupling
(Journal article; Peer reviewed, 2018)We present a theoretical description and numerical simulations of the superconducting transition in hybrid structures including strong spin-orbit interactions. The spin-orbit coupling is taken to be of Rashba type for ... -
Universal absence of Walker breakdown and linear current–velocity relation via spin–orbit torques in coupled and single domain wall motion
(Journal article, 2017)We consider theoretically domain wall motion driven by spin-orbit and spin Hall torques. We find that it is possible to achieve universal absence of Walker breakdown for all spin-orbit torques using experimentally relevant ... -
Voltage-induced thin-film superconductivity in high magnetic fields
(Journal article; Peer reviewed, 2018)We predict that superconductivity in mesoscopic thin films can be stabilized in high magnetic fields if the superconductor is driven out of equilibrium by a DC voltage bias. For realistic material parameters and temperatures, ... -
Vortex spin valve on a topological insulator
(Journal article; Peer reviewed, 2018)Spin-valve structures are usually associated with the ability to modify the resistance of electrical currents. We here demonstrate a profoundly different effect of a spin-valve. In combination with a topological insulator ...