<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2012000100007</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Electronic band structure of platinum low-index surfaces: an ab initio and tight-binding study. II]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Suárez]]></surname>
<given-names><![CDATA[H.J.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rubio-Ponce]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olguín]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad de Ibagué Facultad de Ciencias Naturales y Matemáticas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Ciencias Básicas ]]></institution>
<addr-line><![CDATA[México D.F.]]></addr-line>
<country>México</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación y de Estudios Avanzados Departamento de Física]]></institution>
<addr-line><![CDATA[México D.F.]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2012</year>
</pub-date>
<volume>58</volume>
<numero>1</numero>
<fpage>46</fpage>
<lpage>54</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2012000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2012000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2012000100007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[We present the calculated electronic band structure of ideal Pt(100) and Pt(110) surface by using density functional theory and the empirical tight-binding method. A detailed discussion of the surface- and resonance-states is given. It is shown that the calculated surface- and resonance-states of ideal Pt(100) surfaces agree very well with the available experimental data. For Pt(110), some of the surface- and resonance-states are characteristic of the low symmetry of the surface and are identified as being independent of surface reconstruction effects. As in the previous paper, the density functional calculations were performed using the full potential linearized augmented plane wave method, and the empirical calculations were performed using the tight-binding method and Surface Green's Function Matching Method.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Presentamos el cálculo de la estructura electrónica de bandas de la superficie ideal del Pt(100) y Pt(110). El cálculo se realizó utilizando la teoría del funcional de la densidad y el método de enlace fuerte. Como resultado de nuestro cálculo presentamos una discusión detallada de los estados resonantes y los estados de superficie. Para la superficie ideal del Pt(100) mostramos que tanto los estados de superficie como los estados resonantes concuerdan aceptablemente con datos experimentales. Para el caso de Pt(110) hallamos que los estados resonantes y de superficie característicos de la dimensionalidad de la superficie, son independientes de la reconstrucción y se reproducen aceptablemente en nuestro cálculo. Al igual que en el trabajo anterior, utilizamos la teoría del funcional de la densidad con el método de ondas planas aumentadas, mientras que los cálculos empíricos se han hecho utilizando el método de enlace fuerte junto con el método de empalme de las funciones de Green.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Ab initio calculations]]></kwd>
<kwd lng="en"><![CDATA[surface states]]></kwd>
<kwd lng="en"><![CDATA[resonance states]]></kwd>
<kwd lng="en"><![CDATA[tight-binding calculations]]></kwd>
<kwd lng="en"><![CDATA[metal surfaces]]></kwd>
<kwd lng="es"><![CDATA[Calculo Ab initio]]></kwd>
<kwd lng="es"><![CDATA[estados de superficie]]></kwd>
<kwd lng="es"><![CDATA[estados resonantes]]></kwd>
<kwd lng="es"><![CDATA[cálculos de enlace fuerte]]></kwd>
<kwd lng="es"><![CDATA[superficies metálicas]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Investigaci&oacute;n</font></p>     <p align="justify"><font face="verdana" size="4">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Electronic band structure of platinum low&#150;index surfaces: an <i>ab initio </i>and tight&#150;binding study. II</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>H.J. Herrera&#150;Su&aacute;rez<sup>1</sup>, A. Rubio&#150;Ponce<sup>2</sup> and D. Olgu&iacute;n<sup>3</sup></b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>1</sup> Universidad de Ibagu&eacute;, Facultad de Ciencias Naturales y Matem&aacute;ticas, Colombia, Carrera 22 Calle 67 Barrio Ambala.</i></font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>2</sup> Departamento de Ciencias B&aacute;sicas, Universidad Aut&oacute;noma Metropolitana&#150;Azcapotzalco, Av. San Pablo 180, M&eacute;xico, D.F. 02200, M&eacute;xico.</i></font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>3</sup> Departamento de F&iacute;sica, Centro de Investigaci&oacute;n y de Estudios Avanzados del Instituto Polit&eacute;cnico Nacional, </i><i>Apartado Postal 14740, M&eacute;xico, D.F. 07300, M&eacute;xico.</i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Recibido el 30 de agosto de 2011.    <br> Aceptado el 25 de noviembre de 2011.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">We present the calculated electronic band structure of ideal Pt(100) and Pt(110) surface by using density functional theory and the empirical tight&#150;binding method. A detailed discussion of the surface&#150; and resonance&#150;states is given. It is shown that the calculated surface&#150; and resonance&#150;states of ideal Pt(100) surfaces agree very well with the available experimental data. For Pt(110), some of the surface&#150; and resonance&#150;states are characteristic of the low symmetry of the surface and are identified as being independent of surface reconstruction effects. As in the previous paper, the density functional calculations were performed using the full potential linearized augmented plane wave method, and the empirical calculations were performed using the tight&#150;binding method and Surface Green's Function Matching Method.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b><i>Ab initio </i>calculations; surface states; resonance states; tight&#150;binding calculations; metal surfaces.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">Presentamos el c&aacute;lculo de la estructura electr&oacute;nica de bandas de la superficie ideal del Pt(100) y Pt(110). El c&aacute;lculo se realiz&oacute; utilizando la teor&iacute;a del funcional de la densidad y el m&eacute;todo de enlace fuerte. Como resultado de nuestro c&aacute;lculo presentamos una discusi&oacute;n detallada de los estados resonantes y los estados de superficie. Para la superficie ideal del Pt(100) mostramos que tanto los estados de superficie como los estados resonantes concuerdan aceptablemente con datos experimentales. Para el caso de Pt(110) hallamos que los estados resonantes y de superficie caracter&iacute;sticos de la dimensionalidad de la superficie, son independientes de la reconstrucci&oacute;n y se reproducen aceptablemente en nuestro c&aacute;lculo. Al igual que en el trabajo anterior, utilizamos la teor&iacute;a del funcional de la densidad con el m&eacute;todo de ondas planas aumentadas, mientras que los c&aacute;lculos emp&iacute;ricos se han hecho utilizando el m&eacute;todo de enlace fuerte junto con el m&eacute;todo de empalme de las funciones de Green.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Calculo <i>Ab initio; </i>estados de superficie; estados resonantes; c&aacute;lculos de enlace fuerte; superficies met&aacute;licas.</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS: 73.20.At; 71.15.Ap; 71.15.Mb</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v58n1/v58n1a7.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. A. Stroppa, K. Termentzidis, J. Paier, G. Kresse, and J. Hafner, <i>Phys. Rev. B </i><b>76 </b>(2007) 195440;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8376190&pid=S0035-001X201200010000700001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> A. Stroppa and G. Kresse, <i>New J. Phys. </i><b>10 </b>(2008) 063020;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8376191&pid=S0035-001X201200010000700002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> L. Schimka, J. Harl, A. Stroppa, A. Graneis, M. Marsman, F. Mittendorfer, and G. Kresse, <i>Nature Materials </i><b>9 </b>(2010) 741&#150;744.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8376192&pid=S0035-001X201200010000700003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     ]]></body>
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