Sun, 27 Jul 2008 07:52:42 BST CiteULike: dchen's Mccarley http://www.citeulike.org/user/dchen/author/Mccarley CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/2758375 <i>Physical Review Letters, Vol. 96, No. 12. (2006)</i><br /><br />We present a detailed study of the effects of interface spin-orbit coupling on the critical field behavior of ultrathin superconducting Be/Au bilayers. Parallel field measurements were made in bilayers with Be thicknesses in the range of d=2–30 nm and Au coverages of 0.5 nm. Though the Au had little effect on the superconducting gap, it produced profound changes in the spin states of the system. In particular, the parallel critical field exceeded the Clogston limit by an order of magnitude in the thinnest films studied. In addition, the parallel critical field unexpectedly scaled as Hc||/01/d, suggesting that the spin-orbit coupling energy was proportional to 0/d2. Tilted field measurements showed that, contrary to recent theory, the interface spin-orbit coupling induces a large in-plane superconducting susceptibility but only a very small transverse susceptibility. Spin Proximity Effect in Ultrathin Superconducting Be-Au Bilayers XS Wu PW Adams Y Yang RL Mccarley doi:10.1103/PhysRevLett.96.127002 Physical Review Letters, Vol. 96, No. 12. (2006) 2008-05-05T16:25:55-00:00 2006 Physical Review Letters 96 12 APS 2006 focus magnetic material