Computational sleuthing confirms first 3D quantum spin liquid

Phys.org  May 10, 2022 Finding convincing evidence that quantum spin liquids exist in actual physical materials has been a decades-long challenge. In a 2019 study led by Rice university found the first evidence that cerium zirconium pyrochlore was a quantum spin liquid. To build a convincing case, an international team of researchers (USA – Florida State University, National High Magnetic Field Laboratory, UCLA, Rice University, Germany) developed a model and tested it against thermodynamic, neutron-scattering and magnetization results from previously published experimental studies of cerium zirconium pyrochlore. They matched three different pieces of evidence: that a version of monopoles does […]

Using spin current to convert mechanical vibrations into electricity

Nanowerk  July 20, 2018 Researchers in Japan have designed a nanoscale device that converts mechanical ripples into an electrical current via a spin current. They found that the spin current generated in the second layer was large enough to move magnetic domain walls, which could be used in memory devices. It is still below the spin currents needed, but they could be increased by optimizing the devices. The technology could be used in devices that permit sound waves to pass in one direction but block them in the opposite direction… read more. TECHNICAL ARTICLE