Bonding and Magnetic Exchange in Metal-[TCNE] Magnets

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Date/Time:Thursday, 27 Oct 2011 - Thursday, 27 Oct 2011
Location:PHYSICS Room 5
Phone:515-294-5630
Channel:College of Liberal Arts and Sciences
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Konstantin Pokhodnya Senior Research Scientist Center for Nanoscale Science and Engineering NORTH DAKOTA STATE UNIVERSITY

The ability to control and manipulate the spin of electrons is a grand challenge that has the potential to revolutionize the electronics industry and lead to unprecedented efficiencies in solid-state electronics as well as lighting. The M-[TCNE] (M = 3d metal; TCNE = tetracyanoethylene) system is one of the most interesting classes of molecule-based magnets, exhibiting a plethora of compositions and structures with a wide range of magnetic ordering temperatures (up to 400 K). They can be deposited as thin films on a variety of substrates via CVD methodology. Some of them demonstrate a semiconductor behavior, and their highly spin-polarized conduction and valance bands make them suitable for spintronics applications. The talk will review the properties of molecular magnets from both chemistry and solid state physics perspective and discuss possible pathways of controlling the ordering temperature and transport properties.