[USEMAP:prbcontenthead.gif] [Phys. Rev. B..........] Vol ___ Page/Article: ______ Retrieve _________________________________________________________________ Article Collection: View Collection Help (Click on the COLLECT ARTICLE to add an article.) _________________________________________________________________ Article Collection functions work best when viewed with a JavaScript-capable and -enabled browser (see the online help for more information). [ Previous / Next Abstract | Issue Table of Contents | Bottom of Page ] Physical Review B (Condensed Matter and Materials Physics) -- October 1, 2000 -- Volume 62, Issue 14, pp. 9616-9620 [papers.gif] Full Text: [ PDF (100 kB) GZipped PS Order Document ] _________________________________________________________________ Structural characterization of the Co/Cr multilayers by x-ray-absorption spectroscopy Y. H. Liou,1 W. F. Pong,1 M.-H. Tsai,2 K. H. Chang,1 H. H. Hseih,1 Y. K. Chang,1 F. Z. Chien,1 P. K. Tseng,1 J. F. Lee,3 Y. Liou,4 and J. C. A. Huang5 1Department of Physics, Tamkang University, Tamsui 251, Taiwan 2Department of Physics, National Sun Yat-Sen University, Kaohsiung 804, Taiwan 3Synchrotron Radiation Research Center, Hsinchu Science-based Industrial Park, Hsinchu 300, Taiwan 4Institute of Physics, Academic Sinica, Taipei 115, Taiwan 5Department of Physics, National Cheng Kung University, Tainan 701, Taiwan (Received 11 November 1999; revised 4 May 2000) We have performed Cr and Co K-edge x-ray-absorption measurements to investigate the dependence of local electronic and atomic structures on the Cr-layer thickness in epitaxial Co(1 1-bar 00) (40 Å)/Cr(211) (tCr) (tCr = 2, 3, 5, 7, and 9 Å) multilayers. The Cr K x-ray-absorption near-edge fine structure (XANES) spectra of the Co/Cr multilayers indicate an abrupt transition of the Cr layer from hcp to bcc structure when the thickness of the Cr layer is increased to exceed ~5 Å or three atomic layers. Our results offer an upper limit for the ability of the Co/Cr interface to stabilize the hcp structure in the thin Cr layer. The numbers of nearest-neighbor and next-nearest-neighbor atoms in the Cr and Co layers determined by extended x-ray-absorption fine-structure measurements performed at the Cr and Co K edge, respectively, are consistent with the XANES results. ©2000 The American Physical Society URL: http://link.aps.org/abstract/PRB/v62/p9616 doi:10.1103/PhysRevB.62.9616 PACS: 61.10.Ht, 73.61.-r, 68.55.Jk Additional Information _________________________________________________________________ [papers.gif] Full Text: [ PDF (100 kB) GZipped PS Order Document ] _________________________________________________________________ References Citation links [e.g., Phys. Rev. D 40, 2172 (1989)] go to online journal abstracts. Other links (see Reference Information) are available with your current login. Navigation of links may be more efficient using a second browser window. 1. 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