magnetic moments tagged posts

This brings skyrmions a step closer to use in real-world data storage as well as other novel magnetic and electronic technologies, ie the basis for a new type of computer memory that never loses its grip on the data it stores. Until just recently, magnetic skyrmions had only been seen at very low temperatures and under powerful magnetic fields.

The magnetic force in each individual atom in a magnet ie “magnetic moments” all line up the same way. But under extreme conditions, certain magnetic materials (such as MnSi or FeCoSi) can, instead, develop spots where the moments curve and twist, forming a winding, ring-like configuration...

The magnetic moments of the three organic molecules and the cobalt surface align very stably relative to each other.
Credit: M. Gruber, KIT

A thin layer of organic molecules can stabilize the magnetic orientation of a cobalt surface. “This special interaction between organic molecules and metal surfaces could help to manufacture information storage systems in a more simple, flexible and cheaper way,” explains Wulf Wulfhekel from KIT. Microscopic magnets with constant orientation are used in hard disks, for example. With a view to “printable electronics,” organic molecules indeed could open up new simple production methods utilizing the self-organization of molecules.

METHOD: 3 molecular layers of the dye phtalocynine were applied to the surface of ferromagnetic cobalt...

Rice University researchers (from left) Emilia Morosan, Eteri Svanidze and Jiakui Wang revealed their discovery of the first itinerant antiferromagnet. Credit: Jeff Fitlow/Rice University

Combining Titanium and Gold to make 1st itinerant antiferromagnet: TiAu. This is not the kind of magnet one would stick to a refrigerator. Magnetic order only appears in TiAu when the metal is cooled to 36K = -395F. “Magnetization is a function of temperature,” said lead author Eteri Svanidze. “The magnet’s ordering temperature appears as an anomaly in the smooth curve we see in such magnetization measurements.” For common magnets, it is generally 100s of degs F, way hotter than any kitchen...