<?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>S0035-001X2020000600790</article-id>
<article-id pub-id-type="doi">10.31349/revmexfis.66.790</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Structural, electronic, and optical properties of quaternary alloys Al0.50Ga0.50NxSb1-x: a first-principles study]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Berber]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bouzouira]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mebrek]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Boudali]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Abid]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moujri]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centre Universitaire Nour Bachir El Bayadh  ]]></institution>
<addr-line><![CDATA[El Bayadh ]]></addr-line>
<country>Algérie</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centre Universitaire Nour Bachir El-Bayadh  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Algérie</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,University of Djillali Liabes  ]]></institution>
<addr-line><![CDATA[Sidi-Bel-Abbes ]]></addr-line>
<country>Algeria</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,University of Saida  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Algeria</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Sidi Bel Abbµes Djillali Liabes University  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Algeria</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>66</volume>
<numero>6</numero>
<fpage>790</fpage>
<lpage>796</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2020000600790&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2020000600790&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2020000600790&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In this study, we have employed the first-principle methods based on density functional theory to investigate the structural, electronic, and optical properties of Al0.50Ga0.50NxSb1-x in zincblende structure. The exchange and correlation potential is described by the generalized gradient approximation of Perdew, Burke, and Ernzerhof (GGA-PBEsol) coupled with TB-mBJ approaches. The studied structures show that all structures are semiconductors and have a direct bandgap except Al0.50Ga0.50N0.25Sb0.75, which has a semi-metallic behavior. The optical properties such as refractive index, extinction coefficient, and optical conductivity are discussed in detail. Our result shows these materials are considered as promising materials for optoelectronic applications in the visible and infrared region. To our knowledge, this is the first time that a study has been done on this alloy, and we would like it to serve as a reference for the next studies.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[First-principles computation]]></kwd>
<kwd lng="en"><![CDATA[GGA-PBEsol approximation]]></kwd>
<kwd lng="en"><![CDATA[TB-mBJ]]></kwd>
<kwd lng="en"><![CDATA[optical properties]]></kwd>
</kwd-group>
</article-meta>
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