Alexander A. Baker
Lawrence Livermore National Laboratory
70 Papers
210 Citations
Alexander A. Baker is an academic researcher from Lawrence Livermore National Laboratory. The author has contributed to research in topics: Spintronics & Ferromagnetic resonance. The author has an hindex of 17, co-authored 58 publications. Previous affiliations of Alexander A. Baker include Rutherford Appleton Laboratory & University of Oxford.
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Papers
New insights on cellular structures strengthening mechanisms and thermal stability of an austenitic stainless steel fabricated by laser powder-bed-fusion
Thomas Voisin,Jean-Baptiste Forien,Aurélien Perron,Sylvie Aubry,Nicolas Bertin,Amit Samanta,Alexander A. Baker,Y. Morris Wang +7 more
TL;DR: In this paper, the authors conduct several dedicated transmission electron microscopy (TEM) studies to investigate these strengthening mechanisms and identify that cell walls follow specific crystallographic orientations, forming wider stacking faults while oxide precipitates are confined inside cell walls.
387
Spin pumping in Ferromagnet-Topological Insulator-Ferromagnet Heterostructures
Alexander A. Baker,Adriana I. Figueroa,L. J. Collins-McIntyre,G. van der Laan,Thorsten Hesjedal +4 more
TL;DR: A study of spin pumping at the TI-ferromagnet interface, investigating spin transfer dynamics in a spin-valve like structure using element specific time-resolved x-ray magnetic circular dichroism, and ferromagnetic resonance is reported.
Topological computation based on direct magnetic logic communication
TL;DR: It is demonstrated numerically that the topology of the system plays a significant role for its dynamics, using the example of vortex-antivortex pairs in a planar ferromagnetic film, and direct logic communication between the topological memory carriers is realised.
Proposal of a micromagnetic standard problem for ferromagnetic resonance simulations
Alexander A. Baker,Marijan Beg,Gregory Ashton,Maximilian Albert,Dmitri Chernyshenko,Weiwei Wang,Shilei Zhang,Marc Antonio Bisotti,Matteo Franchin,Chun Lian Hu,Robert Stamps,Thorsten Hesjedal,Hans Fangohr +12 more
TL;DR: In this paper, the authors proposed a new standard problem by providing a detailed specification and analysis of a sufficiently simple problem, where the magnetization dynamics in a thin permalloy square sample, triggered by a well defined excitation, were analyzed and identified the resonance modes via Fourier transform.
69
Anisotropic Absorption of Pure Spin Currents
Alexander A. Baker,Adriana I. Figueroa,C. J. Love,Stuart A. Cavill,Thorsten Hesjedal,G. van der Laan +5 more
TL;DR: A study ofspin pumping in spin valves is reported, demonstrating that a strong anisotropy of spin pumping from the source layer can be induced by an angular dependence of the total Gilbert damping parameter, α, in the spin sink layer.