QPG News
A simple state-of-the-art spectrometer for student labs: Cost-efficient, instructive, and widely applicable
We present a simple, cost-effective, yet instructive spectrometer for use in undergraduate instructional laboratory courses. Deliberate design choices are made to enhance the learning experience provided by the setup, where every component is accessible to students, allowing them to fully understand the function of each individual item.
New Kind of Magnetism Spotted in an Engineered Material
In an atomically thin stack of semiconductors, a mechanism unseen in any natural substance causes electrons’ spins to align.
New type of magnetism appears in a layered semiconductor
The magnetic properties of materials usually originate from exchange interactions between their electrons, but researchers at ETH Zurich in Switzerland have now discovered a new type of magnetism that disobeys this rule. Known as kinetic magnetism, and previously only predicted theoretically, the new mechanism occurs in a regime where the strength of electron exchange interactions vanishes.
A new kind of magnetism
ETH Zurich researchers have detected a new type of magnetism in an artificially produced material. The material becomes ferromagnetic through minimization of the kinetic energy of its electrons.
Quasiparticles Repel, Then Attract
Resonant excitation of a thin-film semiconductor leads to impurities that attract rather than repel each other, providing a possible tool for manipulating superconductivity.