Max Planck Institute of Microstructure Physics

All-Optical Ultrafast Pure Spin Current in the Altermagnet Cr2SO

Abstract All-optical generation of pure spin current─the flow of spin in the absence of a corresponding charge flow─relies on symmetry based compensation between the two spin channels. 2D d-wave altermagnets, which in many respects are ideal spintronic materials due to their very...

Boosting Terahertz Emission via Ultrathin Cu‐Engineered Interfacial Orbital Hybridization

ABSTRACT Orbital angular momentum provides a promising route for developing spintronic terahertz emitters beyond conventional spin‐based mechanisms. However, efficient orbital‐to‐charge conversion and its underlying physics remain largely unexplored. Here, we report a pronounced...

Mode‐Selective C═C and C─N Vibrational Coupling Modulates Nonradiative Decay in Regioisomeric Organic Phosphorescent Emission

ABSTRACT Structural isomerization has emerged as an effective strategy for improving the performance of organic room‐temperature phosphorescent materials, but reported explanations are mainly attributed to differences in molecular packing, spin‐orbit coupling, excited‐state elect...

Suppression of spectral gap and flat bands on a cuprate superconductor side-surface

Abstract Side surfaces of cuprate superconductors are expected to display a suppressed d -wave order parameter and zero-energy topological flat bands with a large density of states, making them susceptible to symmetry broken orders. Yet such surfaces have never been investigated...

Conducting Flexible Single Crystalline Silver Nanocluster Chain

ABSTRACT Atomically precise silver nanoclusters (AgNCs) represent an emerging class of functional materials for constructing periodically extended architectures with tunable properties. In particular, the 1D architecture of AgNCs is highly attractive owing to their ability to pro...

Nonmonotonic scaling of the anomalous Hall effect in a bicollinear antiferromagnet

An anomalous Hall effect (AHE) in antiferromagnetic (AF) systems without net magnetization is of considerable interest for fundamental physics and spintronic applications. Of particular interest is the two-dimensional van der Waals antiferromagnet iron telluride (FeTe), which has...

Opportunities toward Scalable Domain-Wall-Based Spintronic Devices

Abstract Since its initial proposal in 2004, racetrack memory, which utilizes current-induced motion of domain walls within a magnetic nanowire, has evolved from a conceptual spintronic device into a mature research platform supported by major advances in materials engineering, n...

Stochastic Dynamics of Domain Wall on a Racetrack: Impact of Line‐Edge Roughness

We investigate the impact of line‐edge roughness on current‐driven domain wall dynamics in ferromagnetic racetracks. Modeling the edge disorder as a spatially correlated Ornstein–Uhlenbeck process, we demonstrate that even minimal experimentally relevant roughness induces pronoun...

Spontaneous emergence of skyrmions beyond room temperature in boron-doped CrTe

Abstract Magnetic skyrmions are vortex-like spin textures that exhibit remarkable emergent phenomena and hold great promise for applications in spintronics, magnonic devices, and neuromorphic computing. Typically, these spin textures are formed in magnetic samples through the app...

Electron-RichAcetylenic Nanostructures with In Situ Chelated UltrafinePalladium Nanoclusters for EfficientLiquid-Phase Reaction Catalyst

Abstract The development of uniformly distributed ultrafine metallic nanoclusters for advanced catalysts has attracted significant interest. However, synthesizing supports with specific electronic environments and well-defined pores to prevent aggregation remains challenging. Her...