news & viewsand Alq3.This sounds very similar to the recently reported spin filtering at the interface between Cobalt and flat geometry zinc methyl phenalenyl molecules 6 , so now at least two mechanisms for spin filtering at metal-organic interfaces have been demonstrated.To cut a long story short, Steil et al. succeeded in capturing the majority and minority spin electrons as they cross the Co/Alq3 interface.This is perhaps the first time that we have had all the clues to build a clear picture of spin filtering at an interface, and this makes a real difference; providing us with a powerful and easily understandable means for tailoring interfaces for spintronics.

An apple falls from a tree -but would an antimatter apple fall in exactly the same way?The gravitational interaction between matter and antimatter is still insufficiently understood, but so far evidence suggests that the gravitational mass of matter is the same as that of antimatter.To test this further, the ALPHA collaboration at CERN has developed a way of measuring anti-hydrogen atoms in free fall.Anti-hydrogen atoms are produced by mixing antiprotons (supplied by CERN's Antiproton Decelerator) and positrons in a Penning trap.The anti-atoms are trapped in the three-dimensional potential minimum created by additional magnetic fields.When these fields are switched off, the anti-atoms are released, but their escape is short-lived as