Optical conversion of pure spin currents in hybrid molecular devices

Wheeler, May; Ma’Mari, Fatma Al; Rogers, Matthew; Gonçalves, F. J. T.; Moorsom, Timothy; Brataas, Arne; Stamps, R. L.; Ali, M.; Burnell, Gavin; Hickey, B. J.; Céspedes, Oscar

doi:10.1038/s41467-017-01034-0

Cited by 12 publications

(10 citation statements)

References 54 publications

(52 reference statements)

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“…Beyond the generation of spin polarized carrier populations in semiconducting materials, recent works have also been reporting on schemes for optical detection of spin currents in hybrid devices. These so far have been based on molecular semiconductors, such as fullerenes [203].…”

Section: Spin-polarization In Semiconductors Using Plasmonsmentioning

confidence: 99%

Nanoscale magnetophotonics

Maccaferri

Zubritskaya

Razdolski

et al. 2020

Journal of Applied Physics

117

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This Perspective surveys the state-of-the-art and future prospects of science and technology employing the nanoconfined light (nanophotonics and nanoplasmonics) in combination with magnetism. We denote this field broadly as nanoscale magnetophotonics. We include a general introduction to the field and describe the emerging magneto-optical effects in magnetoplasmonic and magnetophotonic nanostructures supporting localized and propagating plasmons. Special attention is given to magnetoplasmonic crystals with transverse magnetization and the associated nanophotonic non-reciprocal effects, and to magneto-optical effects in periodic arrays of nanostructures. We give also an overview of the applications of these systems in biological and chemical sensing, as well as in light polarization and phase control. We further review the area of nonlinear magnetophotonics, the semiconductor spin-plasmonics, and the general principles and applications of opto-magnetism and nano-optical ultrafast control of magnetism and spintronics.

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Section: Spin-polarization In Semiconductors Using Plasmonsmentioning

confidence: 99%

Nanoscale magnetophotonics

Maccaferri

Zubritskaya

Razdolski

et al. 2020

Journal of Applied Physics

117

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“…A consequence of the existing open shell Fe 3d orbitals in hematite is the appearance of spin ordering, which may have an impact on charge carrier dynamics as found for other systems where there is spin-orbit coupling and associated selection rules for charge transport. [43] The magnetic structure of hematite has been characterized by a number of experimental techniques. [44][45][46][47] Each Fe 3+ site has a spin of 5/2, and these spins are ordered throughout the crystal up to high temperatures (~ 950 K).…”

Section: Electronic Structurementioning

confidence: 99%

The “Rust” Challenge: On the Correlations between Electronic Structure, Excited State Dynamics, and Photoelectrochemical Performance of Hematite Photoanodes for Solar Water Splitting

et al. 2018

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In recent years, hematite's potential as a photoanode material for solar hydrogen production has ignited a renewed interest in its physical and interfacial properties, which continues to be an active field of research. Research on hematite photoanodes provides new insights on the correlations between electronic structure, transport properties, excited state dynamics, and charge transfer phenomena, and expands our knowledge on solar cell materials into correlated electron systems. This research news article presents a snapshot of selected theoretical and experimental developments linking the electronic structure to the photoelectrochemical performance, with particular focus on optoelectronic properties and charge carrier dynamics.

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“…In practice, 𝐺 eff ↑↓ , or equivalently 𝑔 eff ↑↓ = 𝐺 eff ↑↓ ℎ/𝑒 2 , for a HM/FM system is typically determined by measuring the FM thickness (tFM) dependence of the damping (α) of in-plane magnetized bilayers based on the standard model where the tFM dependence is attributed only to the enhancement of α by spin pumping into the HM layer [7][8][9][10][11][12][24][25][26][27][28], i.e.…”

mentioning

confidence: 99%

Effective Spin-Mixing Conductance of Heavy-Metal–Ferromagnet Interfaces

2019

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The effective spin-mixing conductance ( eff ↑↓ ) of a heavy metal/ferromagnet (HM/FM) interface characterizes the efficiency of the interfacial spin transport. Accurately determining eff ↑↓ is critical to the quantitative understanding of measurements of direct and inverse spin Hall effects. eff ↑↓ is typically ascertained from the inverse dependence of magnetic damping on the FM thickness under the assumption that spin pumping is the dominant mechanism affecting this dependence. Here we report that, this assumption fails badly in many in-plane magnetized prototypical HM/FM systems in the nm-scale thickness regime. Instead, the majority of the damping is from two-magnon scattering at the FM interface, while spin-memory-loss scattering at the interface can also be significant. If these two effects are neglected, the results will be an unphysical "giant" apparent eff ↑↓ and hence considerable underestimation of both the spin Hall ratio and the spin Hall conductivity in inverse/direct spin Hall experiments.

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Optical conversion of pure spin currents in hybrid molecular devices

Cited by 12 publications

References 54 publications

Nanoscale magnetophotonics

Nanoscale magnetophotonics

The “Rust” Challenge: On the Correlations between Electronic Structure, Excited State Dynamics, and Photoelectrochemical Performance of Hematite Photoanodes for Solar Water Splitting

Effective Spin-Mixing Conductance of Heavy-Metal–Ferromagnet Interfaces

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