Nanosized magnetic particles called skyrmions are considered highly promising candidates for new data storage and information technologies. Now, physicists have revealed new behaviour involving the antiparticle equivalent of skyrmions in a ferromagnetic material. The researchers demonstrated their findings using advanced computer simulations that can accurately model magnetic properties of nanometre-thick materials. The results are published in Nature Electronics.
Computer simulations reveal new behavior of antiskyrmions in gradually increased electric currents.
Scientists at the University of California, Los Angeles present research on a curious cosmic phenomenon known as 'whistlers' -- very low frequency packets of radio waves that race along magnetic field lines. Appearing in the Physics of Plasmas, the study provides new insights into the nature of whistlers and space plasmas and could one day aid in the development of practical plasma technologies with magnetic fields, including spacecraft thrusters that use charged particles as fuel.
Graphene Flagship Partners successfully combined photoswitchable molecular lattices with layered materials to create new high-performance devices that show macroscopic responses to light.
Researchers have demonstrated holonomic quantum gates under zero-magnetic field at room temperature, which will enable the realization of fast and fault-tolerant universal quantum computers.
Magnetic resonance imaging (MRI) could identify morphological and functional brain changes of major depressive disorder (MDD). These alterations may potentially serve as MRI biomarkers that are clinically useful for the early diagnosis and evaluation of the treatment outcomes of MDD.
Researchers from ITMO University developed and tested an MRI coil providing high-resolution imaging of the whole body of a mouse. Such coils are used in preclinical testing, as well as in imaging of various body systems. The new coil produces images with three times higher resolution than standard commercial volume MRI coils. Scientist used inexpensive materials and manufacturing technology that may be adjusted for various research projects. The research was published in NMR in Biomedicine as the cover story.
Chorus waves are electromagnetic waves. Converted to sound they sound like singing and chirping birds at dawn. They can cause polar lights above the Earth as well as damage to satellites. Now, a team of researchers led by Yuri Shprits of GFZ German Research Centre for Geosciences found that such waves are intensified millionfold around Jupiter's moon Ganymede. This study provides important observational constraints for theoretical studies.
Metamaterials researchers from Duke University have shown that patterns made by radio waves can detect a person's presence and location anywhere inside of a room. The technology is sensitive enough to detect a person breathing and could lead to new smart home devices for energy savings, security, healthcare and gaming.
Plasmonic waveguides open the possibility to develop dramatically miniaturized optical devices and provide a promising route towards the next-generation of integrated nanophotonic circuits for information processing, optical computing and others. Key elements of nanophotonic circuits are switchable plasmonic routers and plasmonic modulators. Recently Dr. Joachim Herrmann (MBI) and his external collaborators developed new concepts for the realization of such nanodevices.