Exploiting the full potential of multiferroic materials for magnetic memory devices
Peer-Reviewed Publication
Updates every hour. Last Updated: 9-Jul-2025 04:11 ET (9-Jul-2025 08:11 GMT/UTC)
Magnetization components perpendicular to an applied electric field can be reversed efficiently in multiferroic materials, as reported by researchers from Institute of Science Tokyo. This challenges their previous finding that the electric field and magnetization reversal must align. Using BiFe0.9Co0.1O3 thin films with a specific crystallographic orientation, they demonstrated that a parallel electric field can induce perpendicular magnetization reversal, enabling more flexible designs of energy-efficient magnetic memory devices.
Earthquakes create ripple effects in Earth's upper atmosphere that can disrupt satellite communications and navigation systems we rely on. Nagoya University scientists and their collaborators have used Japan's extensive network of Global Navigation Satellite System (GNSS) receivers to create the first 3D images of atmospheric disturbances caused by the 2024 Noto Peninsula Earthquake. Their results show sound wave disturbance patterns in unique 3D detail and provide new insights into how earthquakes generate these waves. The results were published in the journal Earth, Planets and Space.
Kyoto, Japan -- Whether you are lucky enough to have a cat companion or must merely live this experience vicariously through cat videos, Felis catus is a familiar and comforting presence in our daily lives. Unlike most other feline species, cats exhibit sociality, can live in groups, and communicate both with other cats and humans, which is why they have been humans' trusted accomplices for millennia.
Despite this intimacy, there is still much that we don't know about our feline friends. Numerous behavioral studies have been conducted on other mammal species, but relatively few on cats.
In part to fill this gap, a team of researchers at Wildlife Research Center of Kyoto University are investigating the genetic background of cats' behavioral traits. Specifically, they aim to understand the association between traits like purring and variation in the androgen receptor gene. Though the exact function of purring remains unclear, previous studies have indicated that it is beneficial for feline communication and survival.
Current regulations for nanomedicines overlook the effects of the different forms of the same element, such as ions, nanoparticles, and aggregates. In a recent study, Japanese researchers developed a new analytical method combining an asymmetric flow field-flow fractionation system and mass spectrometry to separately quantify these forms. This technique allows for better quality control and safety evaluation of metal-based nanomedicines, promoting their development and clinical use, with applications also extending to food, cosmetics, and the environment.
In a major advancement for sustainable construction, Japanese scientists have created a cement-free soil solidifier from industrial waste. By combining Siding Cut Powder and activated by Earth Silica, an alkaline stimulant from recycled glass, scientists produced a high-performance material that meets compressive strength standards exceeding the 160 kN/m² construction-grade threshold and eliminates arsenic leaching through calcium hydroxide stabilization. The technology reduces landfill volumes and carbon emissions, offering a circular solution for infrastructure development worldwide.
Researchers from the National Institute for Physiological Sciences/the Exploratory Research Center on Life and Living Systems (ExCELLS)/the Graduate University for Advanced Studies (SOKENDAI) in Japan have identified a monoacylglycerol acyltransferase-coding gene named bishu-1. It is involved in the thermal responsiveness of cool temperature-sensing neurons by regulating ionotropic receptor expression, thereby maintaining the cool temperature avoidance behaviors in Drosophila larvae.