77 citations · 191 across the 7 of their papers we have counts for
7 papers
Brillouin Light Scattering of Spin Waves Inaccessible with Free-Space Light
R. Freeman, R. Lemasters, T. Kalejaiye +8
Micro-focus Brillouin light scattering is a powerful technique for the spectroscopic and spatial characterization of elementary excitations in materials. However, the small momentu…
Observation of anomalous non-Ohmic transport in current-driven nanostructures
Guanxiong Chen, Ryan Freeman, Andrei Zholud +1
Sufficiently large electric current applied to metallic nanostructures can bring them far out-of-equilibrium, resulting in non-Ohmic behaviors characterized by current-dependent re…
Controllable excitation of quasi-linear and bullet modes in a spin-Hall nano-oscillator
B. Divinskiy, V. E. Demidov, S. Urazhdin +3
We experimentally demonstrate that both quasi-linear and nonlinear self-localized bullet modes of magnetization auto-oscillation can be excited by dc current in the nano-gap spin H…
Bridging magnonics and spin-orbitronics
Boris Divinskiy, Vladislav E. Demidov, Sergei Urazhdin +3
The emerging field of nano-magnonics utilizes high-frequency waves of magnetization - the spin waves - for the transmission and processing of information on the nanoscale. The adve…
Anti-reflection coating design for metallic terahertz meta-materials
M. Pancaldi, R. Freeman, M. Hudl +4
We demonstrate a silicon-based, single-layer anti-reflection coating that suppresses the reflectivity of metals at near-infrared frequencies, enabling optical probing of nano-scale…
Intrinsic and extrinsic contributions to spin scattering in Pt
Ryan Freeman, Andrei Zholud, Zhiling Dun +2
We utilize nanoscale spin valves with Pt spacer layers to characterize spin scattering in Pt. Analysis of the spin lifetime determined from our measurements indicates that the extr…