<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Lo, W. S.</style></author><author><style face="normal" font="default" size="100%">Chien, T. S.</style></author><author><style face="normal" font="default" size="100%">Fang, B. S.</style></author><author><style face="normal" font="default" size="100%">Wei, C. M.</style></author><author><style face="normal" font="default" size="100%">Mei, W. N.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Photoelectron-diffraction studies of Nb(001)</style></title><secondary-title><style face="normal" font="default" size="100%">Surface Review and Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">AUGER-ELECTRON</style></keyword><keyword><style  face="normal" font="default" size="100%">ENERGIES</style></keyword><keyword><style  face="normal" font="default" size="100%">MULTILAYER RELAXATION</style></keyword><keyword><style  face="normal" font="default" size="100%">MULTIPLE</style></keyword><keyword><style  face="normal" font="default" size="100%">RECONSTRUCTION</style></keyword><keyword><style  face="normal" font="default" size="100%">SCATTERING</style></keyword><keyword><style  face="normal" font="default" size="100%">SURFACE CRYSTALLOGRAPHY</style></keyword><keyword><style  face="normal" font="default" size="100%">TA(100)</style></keyword><keyword><style  face="normal" font="default" size="100%">TRANSITION-METALS</style></keyword><keyword><style  face="normal" font="default" size="100%">X-RAY PHOTOELECTRON</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1998</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">&lt;Go to ISI&gt;://WOS:000077249200013</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">5</style></number><volume><style face="normal" font="default" size="100%">5</style></volume><pages><style face="normal" font="default" size="100%">1035-1041</style></pages><isbn><style face="normal" font="default" size="100%">0218-625X</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Photoelectron-diffraction studies of Nb(001) have been performed to determine the first-interlayer contraction using Mg K alpha radiation (h nu = 1253.6 eV) as an excitation source. Photoemission intensities of the 3d(5/2) core level were measured as a function of the polar angle along several azimuths on the single-crystal surface. The 202.3-eV (205.0-eV) binding energy for the 3d(5/2) (3d(3/2)) core level was well resolved in the photoemission spectra, where the peak intensity could be easily evaluated by curve-fitting processes. Large oscillations of the 3d(5/2) intensity as a function of the polar angle due to forward-focusing were observed. Based on multiple-scattering calculations for several first-interlayer spacings ranging from the bulk value to 16% contraction, the best agreement with experiment was obtained for a (13 +/- 5)% contraction of the first-interlayer spacing.&lt;/p&gt;
</style></abstract><work-type><style face="normal" font="default" size="100%">Article</style></work-type><notes><style face="normal" font="default" size="100%">&lt;p&gt;ISI Document Delivery No.: 143HLTimes Cited: 15Cited Reference Count: 25Cited References: AEBISCHER HA, 1990, SURF SCI, V239, P261, DOI 10.1016/0039-6028(90)90229-2 BARTYNSKI RA, 1989, PHYS REV B, V40, P5340, DOI 10.1103/PhysRevB.40.5340 DEBE MK, 1979, SURF SCI, V81, P193, DOI 10.1016/0039-6028(79)90513-2 EGELHOFF WF, 1990, CRIT REV SOLID STATE, V16, P213, DOI 10.1080/10408439008244629 ELLIOTT GS, 1991, PHYS REV B, V44, P10826, DOI 10.1103/PhysRevB.44.10826 FADLEY CS, 1992, ADV SURF SCI FADLEY CS, 1984, PROG SURF SCI, V16, P275, DOI 10.1016/0079-6816(84)90001-7 FANG BS, 1993, PHYS REV B, V47, P10671, DOI 10.1103/PhysRevB.47.10671 FANG BS, 1987, PHYS REV B, V36, P7360, DOI 10.1103/PhysRevB.36.7360 FANG BS, 1994, PHYS REV B, V50, P11093, DOI 10.1103/PhysRevB.50.11093 FELTER TE, 1977, PHYS REV LETT, V38, P1138, DOI 10.1103/PhysRevLett.38.1138 FUGGLE JC, 1980, J ELECTRON SPECTROSC, V21, P275, DOI 10.1016/0368-2048(80)85056-0 HOLMBERG S, 1991, SURF SCI, V254, pL475, DOI 10.1016/0039-6028(91)90627-5 INGLESFIELD JE, 1985, PROG SURF SCI, V20, P105, DOI 10.1016/0079-6816(85)90007-3 KIM B, 1993, PHYS REV B, V48, P4735, DOI 10.1103/PhysRevB.48.4735 LUO JS, 1988, PHYS REV B, V38, P1728, DOI 10.1103/PhysRevB.38.1728 MELMED AJ, 1981, SURF SCI, V111, pL701, DOI 10.1016/0039-6028(80)90698-6 METHFESSEL M, 1992, PHYS REV B, V46, P4816, DOI 10.1103/PhysRevB.46.4816 Moruzzi V.L., 1978, CALCULATED ELECT PRO PAN X, 1990, PHYS REV B, V42, P5025, DOI 10.1103/PhysRevB.42.5025 PICK S, 1990, SURF SCI REP, V12, P99 TITOV A, 1982, SURF SCI, V123, pL709, DOI 10.1016/0039-6028(82)90120-0 TONG SY, 1985, PHYS REV B, V32, P2096, DOI 10.1103/PhysRevB.32.2096 Van Hove M.A., 1979, SURFACE CRYSTALLOGRA XU ML, 1985, PHYS REV B, V31, P6332, DOI 10.1103/PhysRevB.31.6332Lo, WS Chien, TS Fang, BS Wei, CM Mei, WNWORLD SCIENTIFIC PUBL CO PTE LTDSINGAPORE&lt;/p&gt;
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