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Ultrafast magnetization enhancement in metallic multilayers driven by superdiffusive spin current

Spin dynamics in magnetic materials can be driven by ultrafast light pulses, resulting in transient magnetization changes on femtosecond timescales. Rudolphet al. find that in magnetic trilayers the magnetization of one layer can be enhanced by superdiffusive spin currents from adjacent layers.

Dennis Rudolf
Chan La-O-Vorakiat
Peter M. Oppeneer
Research04 Sept 2012
Nature Communications

Volume: 3, P: 1-6
Zero-field quantum beats and spin decoherence mechanisms in CsPbBr₃ perovskite nanocrystals

Lead halide perovskites host bright triplet excitons which have applications in optospintronic devices. Here the authors observe quantum coherence between exciton sublevels without magnetic field and clarify the mechanisms of exciton spin relaxation in ensembles of CsPbBr₃ nanocrystals.

Rui Cai
Indrajit Wadgaonkar
Tze Chien Sum
ResearchOpen Access29 Apr 2023
Nature Communications

Volume: 14, P: 1-7
Far out-of-equilibrium spin populations trigger giant spin injection into atomically thin MoS₂

Efficient spin injection across ferromagnet/semiconductor interfaces is a major goal for future spintronic approaches. Ultrafast spectroscopy now reveals strong spin currents to be inducible in monolayer MoS₂ by ultralow-intensity laser pulses.

Liang Cheng
Xinbo Wang
Elbert E. M. Chia
Research21 Jan 2019
Nature Physics

Volume: 15, P: 347-351
Ultrafast exciton fluid flow in an atomically thin MoS₂ semiconductor

Evidence is provided for the formation of a collective state of short-lived excitons whose propagation resembles that of a classical liquid flows, with a speed reaching ~6% the speed of light.

Andrés Granados del Águila
Yi Ren Wong
Qihua Xiong
Research31 Jul 2023
Nature Nanotechnology

Volume: 18, P: 1012-1019
Is the controversy over femtosecond magneto-optics really solved?

Karel Carva
Marco Battiato
Peter M. Oppeneer
Correspondence02 Sept 2011
Nature Physics

Volume: 7, P: 665
Modification of spintronic terahertz emitter performance through defect engineering

Dennis M. Nenno
Laura Scheuer
Evangelos Th. Papaioannou
ResearchOpen Access16 Sept 2019
Scientific Reports

Volume: 9, P: 1-16

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Ultrafast magnetization enhancement in metallic multilayers driven by superdiffusive spin current

Zero-field quantum beats and spin decoherence mechanisms in CsPbBr3 perovskite nanocrystals

Far out-of-equilibrium spin populations trigger giant spin injection into atomically thin MoS2

Ultrafast exciton fluid flow in an atomically thin MoS2 semiconductor

Is the controversy over femtosecond magneto-optics really solved?

Modification of spintronic terahertz emitter performance through defect engineering

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Zero-field quantum beats and spin decoherence mechanisms in CsPbBr₃ perovskite nanocrystals

Far out-of-equilibrium spin populations trigger giant spin injection into atomically thin MoS₂

Ultrafast exciton fluid flow in an atomically thin MoS₂ semiconductor