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Michael De Volder, Engineering Department - IfM
 

Topological acoustics unlocks new horizons in microfluidics

http://feeds.nature.com/nmat/rss/current - Fri, 21/03/2025 - 00:00

Nature Materials, Published online: 21 March 2025; doi:10.1038/s41563-025-02136-7

Topological acoustics offers robust control over acoustic waves, akin to the control of electrons in topological quantum materials. Now, research shows its transformative applications in microfluidics, enabling robust transport and trapping of nanoparticles and DNA molecules for biomedical devices.

Magnon-mediated exciton–exciton interaction in a van der Waals antiferromagnet

http://feeds.nature.com/nmat/rss/current - Fri, 21/03/2025 - 00:00

Nature Materials, Published online: 21 March 2025; doi:10.1038/s41563-025-02183-0

Using pump-power-dependent exciton absorption spectroscopy, the authors reveal magnon-mediated exciton–exciton interactions and a consequent nonlinear optical response in CrSBr, an antiferromagnetic semiconductor.

Topological acoustofluidics

http://feeds.nature.com/nmat/rss/current - Fri, 21/03/2025 - 00:00

Nature Materials, Published online: 21 March 2025; doi:10.1038/s41563-025-02169-y

The authors present a valley-Hall topological acoustofluidic chip revealing the complex interactions between elastic valley spin and nonlinear fluid dynamics, revealing its potential towards on-chip biological applications.

Unconventional unidirectional magnetoresistance in heterostructures of a topological semimetal and a ferromagnet

http://feeds.nature.com/nmat/rss/current - Fri, 21/03/2025 - 00:00

Nature Materials, Published online: 21 March 2025; doi:10.1038/s41563-025-02175-0

Unconventional unidirectional magnetoresistance observed in the heterostructures of a topological semimetal (WTe2) and a magnetic insulator (Cr2Ge2Te6) enables the electrical read-out of the magnetic states of a perpendicularly polarized magnet through longitudinal resistance measurements.

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