Schematic of the alignment of oxygen molecules encapsulated inside SWCNTs
November 13, 2014
Magnetic nano-wires formed by oxygen molecules encapsulated inside carbon nanotubes –Experimental verification of a Haldane magnet using high magnetic fields–
A collaboration, involving research groups at Osaka University, Tokyo Metropolitan University, Kanagawa University and Niigata University, has succeeded in making a new quantum magnet formed by oxygen molecules encapsulated inside single-walled carbon nanotubes (SWCNTs). Observed for the first time, this new magnet has been experimentally confirmed to be a Haldane magnet by using high magnetic field apparatus at the Center for Advanced High Magnetic Field Science, Graduate School of Science in Osaka University, which was established in April of this year.
Previously, the Haldane magnet has only existed in chain-like compounds with transition metal ions such as Ni ions. Now, the research team succeeded in aligning oxygen molecules inside SWCNTs to create a new Haldane magnet that can be considered, in principle, as a single magnetic nano-wire.
Ultimately, this discovery may be widely applied in the development of new nano-wires and spintronics materials that convey and/or control information by spin.
