Nanophotonic structures with optical surface modes for tunable spin current generation
Source abstract
Abstract
We propose a novel type of photonic-crystal (PC)-based nanostructures for efficient and tunable optically-induced spin current generation via the spin Seebeck and inverse spin Hall effects. It has been experimentally demonstrated that optical surface modes localized at the PC surface covered by ferromagnetic layer and materials with giant spin-orbit coupling (SOC) notably increase the efficiency of the optically-induced spin current generation, and provides its tunability by modifying the light wavelength or angle of incidence. Up to 100% of the incident light power can be transferred to heat within the SOC layer and, therefore, to the spin current. Importantly, the high efficiency becomes accessible even for ultra-thin SOC layers. Moreover, the surface patterning of the PC-based spintronic nanostructure allows for the local generation of spin currents at the pattern scales rather than the diameter of the laser beam.
Source: openalex_inverted_index · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic properties of thin films · Photonic Crystals and Applications · Magneto-Optical Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National Research University Higher School of Economics
Moscow 101000
Russia
Moscow Institute of Physics and Technology
Dolgoprudny
Russian Quantum Center
Skolkovo
Faculty of Physics
Lomonosov Moscow State University
Institute of the Physics of Biological Systems
École Polytechnique Fédérale de Lausanne
Lausanne CH-1015
Switzerland
Electron Science Research Institute
Edith Cowan University
Joondalup 6027
Australia
Tata Institute of Fundamental Research
Mumbai 400005
India
University of Science and Technology Beijing
Beijing 100083
China
Laser and Plasma Research Institute
Shahid Beheshti University
Funding
Department of Science and Technology, Ministry of Science and Technology, India · National Natural Science Foundation of China · Russian Foundation for Basic Research · Russian Science Foundation
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