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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:black'>Dear All,<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:black'>This is a kind reminder that our next LI-LA-SiGMA seminar will be tomorrow, June 1st at 2.30pm. We will join the seminar in access grid room( 234 Nethken Hall). The seminar will be broadcasted from SC 2049 at UNO.<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:black'> Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:black'>Abdul Khaliq<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> li-css-bounces@loni.org [mailto:li-css-bounces@loni.org] <b>On Behalf Of </b>Dentcho Genov<br><b>Sent:</b> Thursday, May 26, 2011 12:48 PM<br><b>To:</b> li-css@loni.org; li-scientific@loni.org; lasigma@loni.org; Faculty-l@coes.latech.edu<br><b>Subject:</b> [LI-CSs] LI-LA-SiGMA seminar Wednesday, June 1st<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:black'>Dear All,<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p><p class=MsoNoSpacing style='line-height:115%'><span style='color:black'>Our next LI-LA-SiGMA seminar will be on Wednesday, June 1st at 2.30pm. The seminar will be broadcasted from SC 2049 at UNO. Our speaker is Dr. </span>Valeri Petkov, Dept. Physics, CMU<span style='color:black'>.</span><span style='color:#1F497D'> </span><span style='color:black'>Also, we need decide who will take over the management of the seminar since my tenure has ended.<o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoPlainText style='text-align:justify'><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'>Title: </span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Nanostructure by high-energy XRD and atomic pair distribution functions.<span style='color:black'><o:p></o:p></span></span></p><p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><u>Abstract:</u> Knowledge of the atomic-scale structure is an important prerequisite to understanding, predicting and improving properties of materials. With bulk materials it is easily obtained by traditional (Bragg) x-ray diffraction. However, when the physical size of materials is reduced to nanoscale dimensions Bragg x-ray diffraction is difficult to apply. The reason is that the diffraction patterns of nanosized materials show a limited number of Bragg peaks, if any, and a very pronounced diffuse component. The problem may be solved by employing a non-traditional approach involving high-energy x-ray diffraction and atomic pair distribution function data analysis [1]. In the talk, the essentials of this approach will be introduced and its great potential demonstrated with results from several recent studies on nanostructured metallic (Au and PtPd [2]), oxidic (BaTiO<sub>3</sub>, V<sub>2</sub>O<sub><span style='font-size:9.0pt'>5</span></sub>, TiO<sub><span style='font-size:9.0pt'>2</span></sub>, Fe<sub>2</sub>O<sub>3 </sub>[3]), semiconductor (CdTe, PbSe [4]) and organic (PAMAM dendrimers [5]) materials.<o:p></o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Arial","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Arial","sans-serif"'>[1]</span><b> </b><b><span lang=FR>V. Petkov</span></b><span lang=FR> </span><i>Materials Today</i><span lang=FR> 11 (2008) 28. </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Arial","sans-serif"'>[2]</span><b> <a name="OLE_LINK2">V. Petkov</a></b>, N. Bedford, M. R. Knecht<sup> </sup>, Mi. G. Weir<sup> </sup>, R. M. Crooks<sup> </sup>, W.Tang<sup> </sup>,G. Henkelman<sup> </sup>and A. Frenkel<b><sup> </sup></b> <i>J. Phys. Chem</i>. C 112 (2008) 8907; <span class=lastname><b>V. Petkov, </b>T. Ohta, Y. Hou<sup> </sup>and Y. Ren<b><i><sup> </sup></i></b></span><i>J. Phys. Chem</i>. C 111 (2007) 714.<o:p></o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:"Arial","sans-serif"'>[3] </span><b>V. Petkov</b>, V. Buscaglia, M. Buscaglia, Z. Zhao<span style='color:red'> </span>and Y. Ren <i>Phys. Rev</i>. <i>B</i> 78 (2008) 054107; <b>V. Petkov</b>, P. Y. Zavalij, S. Lutta, M. S. Whittingham, V. Parvanov and S. Shastri <i>Phys. Rev. B 69.</i> (2004) 085410; S. K. Pradhan, Y. Mao, S. S. Wong, P. Chupas and <b>Valeri Petkov</b> <i>Chem. Mat</i>. 19 (2007) 6180; <b><span lang=IT>V. Petkov</span></b><span lang=IT>, P. D. Cozzoli, R. Buonsanti, R.Cingolani, and Y.Ren <i> </i></span><i>JACS Comm</i>. 131 (2009) 14264.<o:p></o:p></p><p class=MsoNormal>[4] S. K. Pradhan, Z. T. Deng,<span style='color:red'> </span>F. Tang, C. Wang, Y. Ren<sup> </sup>, P. Moeck and <b>V. Petkov </b><i>J. Appl. Phys.</i> 102 (2007) 044304; <b><span lang=FR>V. Petkov</span></b><span lang=FR>, </span>I. Moreels, Z. Hens and Y. Ren <i>Phys. Rev. Lett</i> (2010), submitted.<o:p></o:p></p><p class=MsoNormal>[5] <span class=firstname><b>V.</b></span><span class=lastname><b> Petkov</b>, V. Parvanov, D. Tomalia, D. Swanson, D. Bergstrom and <b> </b>T. Vogt<b>, </b></span><i>Solid State Comm</i><b>. </b>134 (2005) 671<o:p></o:p></p><p class=MsoNormal style='text-align:justify'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>The access grid locations are as follow: <o:p></o:p></span></p><p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoNoSpacing style='line-height:115%'><u>Tulane:</u> AG room: 403 Stanley Thomas Hall<o:p></o:p></p><p class=MsoNoSpacing style='line-height:115%'><u>University of Louisiana at Lafayette</u>: AG room: Abdalla Hall<o:p></o:p></p><p class=MsoNoSpacing style='line-height:115%'><u>Southern University:</u> AG room: 218 Moore Hall<o:p></o:p></p><p class=MsoNoSpacing style='line-height:115%'><u>UNO:</u> AG room: <span style='color:black'>SC 2002</span><o:p></o:p></p><p class=MsoNoSpacing style='line-height:115%'><u>LSU:</u> AG room: Johnston 338<o:p></o:p></p><p class=MsoNoSpacing style='line-height:115%'><u>LATECH:</u> AG room: 234 Netken Hall<o:p></o:p></p><p class=MsoPlainText style='text-align:justify'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoPlainText style='text-align:justify'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Please, distribute this email to your students and colleagues.<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Kind Regards,<o:p></o:p></p><p class=MsoNormal>Dentcho<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>----<o:p></o:p></p><p class=MsoNormal>Dentcho A. Genov, PhD<o:p></o:p></p><p class=MsoNormal>The LONI Institute Fellow<o:p></o:p></p><p class=MsoNormal>Assistant Professor of Physics & Electrical Engineering<o:p></o:p></p><p class=MsoNormal>Louisiana Tech University, Engineering Annex, Room 220<o:p></o:p></p><p class=MsoNormal>599 W Arizona Ave, Ruston LA 71272<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Phone: (318) 257-4190, Fax: (318) 257-2777<o:p></o:p></p><p class=MsoNormal>Webpage: <a href="http://www.phys.latech.edu/~dgenov/">http://www.phys.latech.edu/~dgenov/</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>