93 citations · 255 across the 12 of their papers we have counts for
13 papers
Beyond Equilibrium Raman Thermometry: Fermi-Level Control of the Anti-Stokes Response in Graphene
Martin Jindra, Luka Pirker, Tim Verhagen +7
Non-equilibrium electron and phonon populations govern heat generation and dissipation in nanoscale devices, yet their direct characterization remains challenging. Anti-Stokes Rama…
Deterministic multi-level spin orbit torque switching using He+ microscopy patterning
Jinu Kurian, Aleena Joseph, Salia Cherifi-Hertel +7
He ion irradiation is used to pattern multiple areas of Pt/Co/W films with different irradiation doses in Hall bars. The resulting perpendicular magnetic anisotropy landscape e…
Wafer-scale nanofabrication of telecom single-photon emitters in silicon
M. Hollenbach, N. Klingner, N. S. Jagtap +9
A highly promising route to scale millions of qubits is to use quantum photonic integrated circuits (PICs), where deterministic photon sources, reconfigurable optical elements, and…
A photonic platform hosting telecom photon emitters in silicon
Michael Hollenbach, Nagesh S. Jagtap, Ciarán Fowley +12
Silicon, a ubiquitous material in modern computing, is an emerging platform for realizing a source of indistinguishable single-photons on demand. The integration of recently discov…
Spin polarization and magnetotransport properties of systematically disordered thin films
Kiril Borisov, Jonathan Ehrler, Ciaran Fowley +8
We investigate the evolution of spin polarization, spontaneous Hall angle (SHA), saturation magnetization and Curie temperature of -ordered FeAl thin films under…
Magnetization dynamics in synthetic antiferromagnets: Role of dynamical energy and mutual spin pumping
S. Sorokin, R. A. Gallardo, C. Fowley +8
We investigate magnetization dynamics in asymmetric interlayer exchange coupled Py/Ru/Py trilayers using both vector network analyzer-based and electrically detected ferromagnetic…
Helium Ion Microscopy for Reduced Spin Orbit Torque Switching Currents
Peter Dunne, Ciaran Fowley, Gregor Hlawacek +11
Spin orbit torque driven switching is a favourable way to manipulate nanoscale magnetic objects for both memory and wireless communication devices. The critical current required to…
Ion-Irradiation-Induced Cobalt/Cobalt Oxide Heterostructures: Printing 3D Interfaces
Oğuz Yıldırım, Donovan Hilliard, Sri Sai Phani Kanth Arekapudi +10
Interfaces separating ferromagnetic (FM) layers from non-ferromagnetic layers offer unique properties due to spin-orbit coupling and symmetry breaking, yielding effects such as exc…
Spin-transfer dynamics in MgO-based magnetic tunnel junctions with an out-of-plane magnetized free layer and an in-plane polarizer
Ewa Kowalska, Volker Sluka, Attila Kákay +4
Here, we present an analytical and numerical model describing the magnetization dynamics in MgO-based spin-torque nano-oscillators with an in-plane magnetized polarizer and an out-…
Zero-field dynamics stabilized by in-plane shape anisotropy in MgO-based spin-torque oscillators
Ewa Kowalska, Attila Kákay, Ciarán Fowley +4
Here we demonstrate numerically that shape anisotropy in MgO-based spin-torque nano-oscillators consisting of an out-of-plane magnetized free layer and an in-plane polarizer is nec…
Magnetocrystalline anisotropy and exchange probed by high-field anomalous Hall effect in fully-compensated half-metallic Mn2RuxGa thin films
Ciarán Fowley, Karsten Rode, Yong-Chang Lau +12
Magnetotransport is investigated in thin films of the half-metallic ferrimagnet MnRuGa in pulsed magnetic fields of up to 58 T. A non-vanishing Hall signal is observed over…
Tunnel magnetoresistance angular and bias dependence enabling tuneable wireless communication
Ewa Kowalska, Akio Fukushima, Volker Sluka +7
Spin-transfer torques (STTs) can be exploited in order to manipulate the magnetic moments of nanomagnets, thus allowing for new consumer-oriented devices to be designed. Of particu…
Direct measurement of the magnetic anisotropy field in Mn--Ga and Mn--Co--Ga Heusler films
Ciarán Fowley, Siham Ouardi, Takahide Kubota +10
The static and dynamic magnetic properties of tetragonally distorted Mn--Ga based alloys were investigated. Static properties are determined in magnetic fields up to 6.5~T using SQ…