334 citations · 1.2k across the 29 of their papers we have counts for
21 papers · 1 filter
Inertial displacement of a domain wall excited by ultra-short circularly polarized laser pulses
T. Janda, P. E. Roy, R. M. Otxoa +9
Domain wall motion driven by ultra-short laser pulses is a prerequisite for envisaged low-power spintronics combining storage of information in magneto electronic devices with high…
Efficient conversion of light to charge and spin in Hall-bar microdevice
L. Nádvorník, J. A. Haigh, K. Olejník +4
We report an experimental demonstration of a local amplification of the spin Hall voltage using an expanding depletion zone at a pn-junction in GaAs/AlGaAs Hall-bar microdevices. I…
Anisotropic magneto-capacitance in ferromagnetic-plate capacitors
J. A. Haigh, C. Ciccarelli, A. C. Betz +4
The capacitance of a parallel plate capacitor can depend on applied magnetic field. Previous studies have identified capacitance changes induced via classical Lorentz force or spin…
Reconfigurable Boolean Logic using Magnetic Single-Electron Transistors
M. F. Gonzalez-Zalba, C. Ciccarelli, L. P. Zarbo +6
We propose a novel hybrid single-electron device for reprogrammable low-power logic operations, the magnetic single-electron transistor (MSET). The device consists of an aluminium…
Electrical manipulation of a ferromagnet by an antiferromagnet
V. Tshitoyan, C. Ciccarelli, A. P. Mihai +5
We demonstrate that an antiferromagnet can be employed for a highly efficient electrical manipulation of a ferromagnet. In our study we use an electrical detection technique of the…
Magnonic Charge Pumping via Spin-Orbit Coupling
Chiara Ciccarelli, Kjetil M. D. Hals, Andrew Irvine +5
The interplay between spin, charge, and orbital degrees of freedom has led to the development of spintronic devices like spin-torque oscillators, spin-logic devices, and spin-trans…
Optical spin transfer torque driven domain wall motion in ferromagnetic semiconductor
A. J. Ramsay, P. E. Roy, J. A. Haigh +6
We demonstrate optical manipulation of the position of a domain wall in a dilute magnetic semiconductor, GaMnAsP. Two main contributions are identified. Firstly, photocarrier spin…
Spin-orbit torque opposing the Oersted torque in ultrathin Co/Pt bilayers
T. D. Skinner, M. Wang, A. T. Hindmarch +5
Current-induced torques in ultrathin Co/Pt bilayers were investigated using an electrically driven FMR technique. The angle dependence of the resonances, detected by a rectificatio…
Observation of a Berry phase anti-damping spin-orbit torque
H. Kurebayashi, Jairo Sinova, D. Fang +10
Recent observations of current-induced magnetization switching at ferromagnet/normal-conductor interfaces have important consequences for future magnetic memory technology. In one…
Enhanced Inverse Spin-Hall Effect in Ultrathin Ferromagnetic/Normal Metal Bilayers
T. D. Skinner, H. Kurebayashi, D. Fang +6
We measure electrically detected ferromagnetic resonance in microdevices patterned from ultra-thin Co/Pt bilayers. Spin pumping and rectification voltages are observed and distingu…
Spin gating electrical current
C. Ciccarelli, L. P. Zarbo, A. C. Irvine +5
We use an aluminium single electron transistor with a magnetic gate to directly quantify the chemical potential anisotropy of GaMnAs materials. Uniaxial and cubic contributions to…
Spin Hall transistor with electrical spin injection
K. Olejnik, J. Wunderlich, A. C. Irvine +4
The realization of a viable semiconductor transistor and information processing devices based on the electron spin has fueled intense basic research of three key elements: injectio…
Voltage-controlled electron tunnelling from a single self-assembled quantum dot embedded in a two-dimensional-electron-gas-based photovoltaic cell
J. D. Mar, X. L. Xu, J. J. Baumberg +3
We perform high-resolution photocurrent (PC) spectroscopy to investigate resonantly the neutral exciton ground-state (X0) in a single InAs/GaAs self-assembled quantum dot (QD) embe…
Coulomb Oscillations of Indium-doped ZnO Nanowire Transistors in a Magnetic Field
Xiulai Xu, Andrew C. Irvine, Yang Yang +2
We report on the observation of Coulomb oscillations from localized quantum dots superimposed on the normal hopping current in ZnO nanowire transistors. The Coulomb oscillations ca…
Spin Hall effect transistor
J. Wunderlich, B. G. Park, A. C. Irvine +6
Spin transistors and spin Hall effects have been two separate leading directions of research in semiconductor spintronics which seeks new paradigms for information processing techn…
Spin-injection Hall effect in a planar photovoltaic cell
J. Wunderlich, A. C. Irvine, Jairo Sinova +5
Successful incorporation of the spin degree of freedom in semiconductor technology requires the development of a new paradigm allowing for a scalable, non-destructive electrical de…
Magneto-optical and micromagnetic simulation study the current driven domain wall motion in ferromagnetic (Ga,Mn)As
K. Y. Wang, A. C. Irvine, R. P. Campion +4
We have studied current-driven domain wall motion in modified Ga_0.95Mn_0.05As Hall bar structures with perpendicular anisotropy by using spatially resolved Polar Magneto-Optical K…
Magnetic reversal under external field and current-driven domain wall motion in (Ga,Mn)As: influence of extrinsic pinning
K Y Wang, A C Irvine, J Wunderlich +6
We investigate the anisotropy of magnetic reversal and current-driven domain wall motion in annealed Ga_0.95Mn_0.05As thin films and Hall bar devices with perpendicular magnetic an…
The Origin and Control of the Sources of AMR in (Ga,Mn)As Devices
A. W. Rushforth, K. Výborný, C. S. King +11
We present details of our experimental and theoretical study of the components of the anisotropic magnetoresistance (AMR) in (Ga,Mn)As. We develop experimental methods to yield dir…
Magnetocrystalline anisotropy controlled local magnetic configurations in (Ga,Mn)As spin-transfer-torque microdevices
J. Wunderlich, A. C. Irvine, J. Zemen +11
The large saturation magnetization in conventional dense moment ferromagnets offers flexible means of manipulating the ordered state through demagnetizing shape anisotropy fields b…
Anisotropic Magnetoresistance components in (Ga,Mn)As
A. W. Rushforth, K. Výborný, C. S. King +11
Our experimental and theoretical study of the non-crystalline and crystalline components of the anisotropic magnetoresistance (AMR) in (Ga,Mn)As is aimed at exploring the basic phy…