Spintronics-Info: the spintronics experts

Spintronics is the new science of computers and memory chips that are based on electron spin rather than (or in addition to) the charge (used in electronics). Spintronics is an exciting field that holds promise to build faster and more efficient computers and devices. Spintronics-Info, established in 2007, is the world's leading spintronics industry portal - offering a popular web publication and newsletter.

Recent Spintronic News

Researchers achieve field‑free switching of hard ferromagnets with giant spin‑orbit torque

Researchers at the University of Waterloo recently demonstrated fully electrical, field‑free control of perpendicular magnetization using spin‑orbit torque (SOT) in a low‑symmetry 2D magnet/topological‑insulator heterostructure, paving the way for scalable, energy‑efficient spintronic memory and logic devices.

Stacking the three-fold symmetry of BiSbTe on top of the two-fold symmetry of intercalated-CrTe, the interface only permits a unidirectional symmetry which produces an extremely strong out-of-plane spin torque and can deterministically switch a very hard, perpendicular magnet with ease. Image credit: University of Waterloo  

Modern MRAM and related spintronic memories need dense, robust perpendicular magnetic anisotropy (PMA) bits that can be switched deterministically with low energy consumption, but conventional SOT easily switches only in‑plane moments and typically requires an external bias field to tilt perpendicular spins “up” or “down”. In perpendicular configurations, bits point out of the film plane, which boosts storage density but makes the energy‑efficient, fully electrical control of their state difficult. Standard heavy‑metal/ferromagnet stacks already break out‑of‑plane symmetry and can support in‑plane switching, yet deterministic out‑of‑plane reversal demands breaking additional in‑plane symmetries - usually via an applied magnetic field, which adds circuit complexity, power overhead, and risks cross‑talk between neighboring bits.

Read the full story Posted: Jan 29,2026

Spin-size-controlled Kondo physics opens a new route to magnetic quantum materials

A research team, led by Associate Professor Hironori Yamaguchi at Osaka Metropolitan University, has found that the Kondo effect behaves differently depending on spin size. In systems with small spins, it suppresses magnetism, but when spins are larger, it actually promotes magnetic order. This discovery highlights a new quantum boundary with major implications for future materials.

The team created a new type of Kondo necklace using a carefully engineered organic inorganic hybrid material made from organic radicals and nickel ions. This precise design was achieved using RaX-D, a molecular design framework that allows fine control over crystal structure and magnetic interactions. The researchers had previously succeeded in building a spin-1/2 Kondo necklace. In their latest work, they extended the system by increasing the localized spin (decollated spin) from 1/2 to 1. Thermodynamic measurements revealed a clear phase transition, showing that the system entered a magnetically ordered state.

Read the full story Posted: Jan 25,2026

Rhombus-shaped nanographenes enable room-temperature pure spin currents in all-carbon spintronic devices

Researchers from Suzhou University of Science and Technology, Yancheng Polytechnic College and Soochow University have investigated spin transport in spintronic devices built from rhombus-shaped nanographenes (RNGs) contacted by zigzag graphene nanoribbon (ZGNR) electrodes via carbon chains. These RNGs exhibit measurable magnetic exchange coupling and robust all‑carbon magnetism, making them promising candidates for room‑temperature spintronic applications.

In the parallel magnetic configuration of the two ZGNR electrodes, the devices show a pronounced spin‑filtering effect that allows only spin‑up electrons to pass through. The connection geometry between the RNGs and the carbon chains is found to strongly influence the quantum transport characteristics.

Read the full story Posted: Jan 21,2026

Researchers succeed in directly tracking how chiral nanowires control electron spins

An international team of researchers, led by Ulsan National Institute of Science and Technology (UNIST), has directly observed how electron spins behave in real space, providing a new understanding of this complex interaction. 

The phenomenon where electron spins align in a specific direction after passing through chiral materials is crucial for future spin-based electronics, yet the underlying mechanism has been unclear. The team’s work shows that chiral materials actively change the spin orientation of electrons, overturning the long-held belief that these materials simply filter spins without affecting their direction.

Read the full story Posted: Jan 17,2026

Unexpected feature in transitional metal-based compounds could enable a new class of spintronic materials

Scientists at Ames National Laboratory, in collaboration with Indranil Das’s group at the Saha Institute of Nuclear Physics (India), recently found a surprising electronic feature in transitional metal-based compounds that could pave the way for a new class of spintronic materials for computing and memory technologies.

The feature was found in Mn₂PdIn, a Heusler compound - a type of alloy valued for its tunable magnetic and electronic properties. These alloys can exhibit behaviors not seen in their individual elements, making them prime candidates for spintronic applications.

Read the full story Posted: Dec 29,2025

Geometry‑programmed spin chirality for zero‑field chiral magnonics

Researchers from EPFL, Max Planck Institute and HZB have shown that spin chirality can be engineered purely by 3D shape in an otherwise non‑chiral ferromagnet, unlocking spontaneous MChA at room temperature and zero applied field.

The device is a hollow “Archimedean screw”: a 3D‑printed polymer tube made by two‑photon lithography and conformally coated with a ~30 nm polycrystalline Ni layer by ALD, forming a twisted nanotube whose left‑ or right‑handed geometry imprints the magnetic twist. The curved, twisted shape creates a helical magnetization pattern with a built‑in magnetic “circulation”, which breaks symmetry between +k and −k spin waves without needing exotic chiral crystals or external magnetic fields.

Read the full story Posted: Dec 20,2025

Researchers reveal spin–orbit-driven AC currents from Larmor spin precession in semiconductors

Researchers from RWTH Aachen University, Ioffe Institute and Forschungszentrum Jülich GmbH have shown that the collective motion of spin-polarized electrons can spontaneously generate ultrafast electric currents - without any applied voltage.

In their experiments on strained n-InGaAs semiconductor layers, the team found that when electrons are initialized in the same spin state and exposed to a magnetic field, they produce an alternating current (AC) at gigahertz frequencies. This current persists until the coherent spin precession of the electrons dephases. Its amplitude scales linearly with both the strength of the spin–orbit interaction and the magnetic field, revealing a direct link between spin dynamics and charge motion in solid-state systems.

Read the full story Posted: Dec 17,2025

Researchers report confinement-induced spin-texture reorientation in ion-patterned nanomagnets

Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have partnered with NTNU, the Norwegian University of Science and Technology in Trondheim, and the Institute of Nuclear Physics in the Polish Academy of Sciences to develop a method that facilitates the manufacture of particularly efficient magnetic nanomaterials in a relatively simple process based on inexpensive raw materials. 

Using a highly focused ion beam, they imprint magnetic nanostrips consisting of tiny, vertically aligned nanomagnets onto the materials. This geometry makes the material highly sensitive to external magnetic fields and current pulses.

Read the full story Posted: Dec 10,2025

Spatiotemporal visualization of current-induced spin switching in the antiferromagnetic Weyl semimetal Mn₃Sn

A research team, led by Ryo Shimano of the University of Tokyo, has explored ultrafast spin dynamics in the antiferromagnetic Weyl semimetal Mn₃Sn, providing direct visualization of current-induced switching processes at the sub-nanosecond scale. Mn₃Sn is of particular interest for spintronic applications due to its non-collinear spin structure, which gives rise to distinct magnetic and electrical properties at room temperature.

Using spatiotemporally resolved magneto-optical Kerr effect imaging with electrical pulses as short as 140 picoseconds, the team captured the evolution of magnetic domains during switching in polycrystalline Mn₃Sn films. The measurements revealed two distinct regimes of magnetization reversal depending on the intensity and duration of the applied current pulse: a non-thermal process where switching occurs without disrupting the antiferromagnetic order, and a thermally assisted process involving transient heating beyond the magnetic ordering temperature.

Read the full story Posted: Dec 05,2025

Researchers report 'twisted metallic magnet' for next‑generation spintronics and electronics

Researchers from The University of Tokyo, RIKEN Center for Emergent Matter Science (CEMS), Tokyo Metropolitan University, Karlsruhe Institute of Technology (KIT), Gdańsk University of Technology, High Energy Accelerator Research Organization, Japan Atomic Energy Agency, and additional institutes recently reported a metallic “twisted” antiferromagnet that realizes p‑wave magnetism and delivers a strong, easily readable spintronic signal. This material links a helical spin texture directly to charge transport, pointing toward faster, cooler, and more compact spin‑based memory and logic technologies.

In this compound, atomic magnetic moments do not all align in one direction as in a standard magnet; instead, they form a helix along a crystal axis, creating an antiferromagnetic “twisted” state with nearly zero net magnetization. This helical texture produces an odd‑parity (p‑wave) spin splitting of the conduction electrons, so electrons moving in different directions carry oppositely polarized spins without relying on strong electronic correlations.

Read the full story Posted: Nov 29,2025