Interfacial nanostructure induced spin-reorientation transition in Ni/Fe/Ni/W(110)

J.-S. Lee,1 J. T. Sadowski,2 H. Jang,3 J.-H. Park,3,4 J.-Y. Kim,5 J. Hu,6 R. Wu,6 and C.-C. Kao1 1Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA 2Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA c−CCMR and Department of Physics, Pohang University of Science and Technology, Pohang 790-784, S. Korea 4Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang 790-784, S. Korea 5Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 790-784, S. Korea 6Department of Physics & Astronomy, University of California Irvine, California 92697, USA (Received 13 October 2010; revised manuscript received 3 March 2011; published 22 April 2011)