A new route to electrically controlled helimagnetic structures

Advanced magnetic memory and spintronic devices rely on the ability to control magnetic states using electricity. Today, such ...
PNAS

Torque-generating units of the bacterial flagellar motor are rotary motors

Bacteria swim by rotating rigid helical flagellar filaments. Here, we find that the torque-generating unit that drives flagellar rotation is itself a rotary motor. Each torque-generating unit is a ...
Bulletin of the Atomic Scientists

Fusion: The Uncertain Certainty

(Editor’s note: The following article originally appeared in the Bulletin of the Atomic Scientists in October, 1971. It is reprinted here in full in November 2024—so readers can get a sense of how ...
Nature

Implementation of dispersion-free slow acoustic wave propagation and phase engineering with helical-structured metamaterials

The ability to slow down wave propagation in materials has attracted significant research interest. A successful solution will give rise to manageable enhanced wave–matter interaction, freewheeling ...