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“the Cauchy stress tensor completely defines the state of stress at a point inside a material in the deformed state”

The Cauchy Stress Tensor.

Imagine you’re holding a rubber band in your hands and stretching it.

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Chirality in extended 2D structures exhibits fundamental differences from molecular-level chirality. This Perspective discusses how local molecular chirality is transmitted and amplified to form distinctive global chirality within ultrathin, single-crystalline 2D materials; it also explores the future challenges and potential of this field.

Researchers discovered a significant anomalous Hall effect in the magnetic material SrCo6O11 at temperatures above its magnetic transition, where it exhibits a phenomenon known as the “Spin-Fluctuating Devil’s Staircase.” This observation could revolutionize the design of materials for magneto-thermoelectric conversion, impacting the development of new thermoelectric materials.

Here’s a bit of background: When an electric current flows through a metal sample in a magnetic field, it experiences the Lorentz force. This force generates a voltage perpendicular to the magnetic field and current—a phenomenon referred to as the Hall effect.

In magnetic metals, a similar phenomenon—known as the anomalous Hall effect—may occur independently of an external magnetic field, particularly in ferromagnetic materials wherein electron spins are aligned. Generally, this alignment—and thus the anomalous Hall effect—only manifests below a certain temperature, known as the magnetic transition temperature.

The integration of graphene-metal metastructures with laser micropropulsion systems promises significant advancements in space exploration and energy systems.

Could nickel-oxide-based compounds be a new class of high-temperature superconductors?

Experiments on soft granular materials have allowed researchers to derive a rheological description for these materials by extending an established framework valid for hard granular materials.

Imagine knowing your milk has gone bad without having to open your fridge. A technology called printed electronics could one day make innovations like this possible.

James Tour’s lab at Rice University has developed a new method known as flash-within-flash Joule heating (FWF) that could transform the synthesis of high-quality solid-state materials, offering a cleaner, faster and more sustainable manufacturing process. The findings were published in Nature Chemistry on Aug. 8.

A soft x-ray magnetic imaging technique makes possible the study of a wide range of magnetic materials.