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Electrical control of magnetism by electric field and current-induced torques
March 13, 2024
Albert Fert et al.
Rev. Mod. Phys. 96, 015005 (2024)
Tirth Shah, Christian Brendel, Vittorio Peano, and Florian Marquardt
Rev. Mod. Phys. 96, 021002 (2024)
Artificially engineered mechanical systems, sometimes called metamaterials, offer many promising applications on length scales ranging from macroscopic systems to the nanoscale. A topic of particular interest is the existence of topologically protected phononic edge states in such systems that are analogous to the electronic edge states that give rise to the quantum Hall effect. This Colloquium gives an introduction to topologically protected transport in metamaterials and its applications for controlling acoustic transport.
M. Marmol, E. Gachon, and D. Faivre
Rev. Mod. Phys. 96, 021001 (2024)
Magnetotactic bacteria have a built-in compass, in the form of a magnetosome chain made up of magnetic biominerals, that allows them to passively align along terrestrial magnetic field lines. They also sense oxygen gradients and swim using at least one flagellum. Hence, these bacteria are self-propelled active matter capable of displaying flocking behavior. This Colloquium explains the physics behind these various capabilities, as well as their interactions and biological significance.
Gino Isidori, Felix Wilsch, and Daniel Wyler
Rev. Mod. Phys. 96, 015006 (2024)
The standard model is successful at describing most of the data at the electroweak scale, but there are indications that new physics should exist at a higher energy scale. To identify, quantify, and elucidate the new physics, one can use the framework of the standard model effective field theory. This article reviews the construction and theoretical tools provided by the effective field theory for analyzing the present and future experimental data, as well as theoretical ideas for new physics.
Albert Fert et al.
Rev. Mod. Phys. 96, 015005 (2024)
Electronic devices that incorporate magnetism, called spintronic devices, can increase the functionality of electronic circuits and lead to increases in efficiency. Such devices are useful if the magnetization can be manipulated electrically rather than by magnetic fields. This review covers the materials, underlying physics, and applications involved in such manipulation, focusing on two control mechanisms. The first is control by manipulating the magnetization through its coupling to ferroelectric order and the second is control by spin-polarized currents manipulating the magnetization through the angular momentum flowing into it.
Albert Fert et al.
Rev. Mod. Phys. 96, 015005 (2024)
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