<?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>S0035-001X2007000700006</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Meso- and nano- magnetoelectricity: a review]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuentes]]></surname>
<given-names><![CDATA[M.E]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuentes]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olivera]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Autonomous University of Chihuahua  ]]></institution>
<addr-line><![CDATA[ Chih]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Complejo Industrial Chihuahua Advanced Materials Research Center ]]></institution>
<addr-line><![CDATA[Chihuahua Chih]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2007</year>
</pub-date>
<volume>53</volume>
<fpage>21</fpage>
<lpage>29</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2007000700006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2007000700006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2007000700006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[The physics of magnetoelectric phenomena, on different scales, is discussed. At macro- and mesoscopic levels, the best performance today is obtained by magnetostrictive-piezoelectric composites. Magnetoelectric coupling is obtained by means of an elastic link. The Carman model for magneto-elasto-electric interaction is presented. Recent experimental results are commented on. A mesoscopic analysis of single-phased magnetoelectric materials is presented. Effective properties of single-crystals and textured polycrystals are mathematically characterized and references to recent experimental reports are given. Some basic questions regarding the atomic-level physics of magnetoelectric multiferroics are discussed. Quantum mechanical conditions for the co-existence of ferroelectric and ferromagnetic structures are investigated. The approach of Spaldin and coworkers, and its computational implementation, are analyzed. The search for a critical size associated with ferroic phenomena is described. Representative contributions are mentioned. Experimental work and computational modeling running at CIMAV and UACh are described.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se discute la física de los fenómenos megnetoeléctricos a diferentes escalas. A niveles macro- y mesoscópico los compósitos magnetoestrictivo-piezoelectrico exhiben hoy los mejores desempeños. El acoplamiento magnetoeléctrico se obtiene mediante un vínculo elástico. Se presenta el modelo de Carman para la interacción magneto-elasto-eléctrica. Se comenta resultados experimentales representativos. Se expone un análisis mesoscópico de materiales magnetoeléctricos monofásicos. Se dan referencias a desarrollos experimentales recientes. Se discuten cuestiones básicas de la física de la magnetoelectricidad a nivel atómico. Se investigan las condiciones mecano-cuánticas para la coexistencia de ferroelectricidad y ferromagnetismo. Se describe la busqueda de un tamaño crítico para la desaparición de los efectos ferroicos. Se mencionan los trabajos experimentales y de computo desarrollados por CIMAV y la UACh en magnotoelectricidad.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Magnetoelectricity]]></kwd>
<kwd lng="en"><![CDATA[multiferroic materials]]></kwd>
<kwd lng="en"><![CDATA[nano-composites]]></kwd>
<kwd lng="es"><![CDATA[Magnetoelectricidad]]></kwd>
<kwd lng="es"><![CDATA[materiales multiferroicos]]></kwd>
<kwd lng="es"><![CDATA[nanocompósitos]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><font face="verdana" size="4"><b>Meso&#150; and nano&#150; magnetoelectricity: a review</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>M.E. Fuentes&ordf;, L. Fuentes<sup>b</sup>*, R. Olivera<sup>b</sup>, and M. Garc&iacute;a<sup>b</sup></b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">&ordf; Autonomous University of Chihuahua (UACh), Campus Universitario Chihuahua, Chih. 31000, M&eacute;xico.</i></font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>b </sup>Advanced Materials Research Center (CIMAV), Complejo Industrial Chihuahua, Miguel de Cervantes 120 Chihuahua, Chih. 31109, M&eacute;xico, *e&#150;mail: <a href="mailto:luis.fuentes@cimav.edu.mx" target="_blank">luis.fuentes@cimav.edu.mx</a></i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido el 9 de junio de 2006    <br>   Aceptado el 5 de septiembre de 2006</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">The physics of magnetoelectric phenomena, on different scales, is discussed. At macro&#150; and mesoscopic levels, the best performance today is obtained by magnetostrictive&#150;piezoelectric composites. Magnetoelectric coupling is obtained by means of an elastic link. The Carman model for magneto&#150;elasto&#150;electric interaction is presented. Recent experimental results are commented on. A mesoscopic analysis of single&#150;phased magnetoelectric materials is presented. Effective properties of single&#150;crystals and textured polycrystals are mathematically characterized and references to recent experimental reports are given. Some basic questions regarding the atomic&#150;level physics of magnetoelectric multiferroics are discussed. Quantum mechanical conditions for the co&#150;existence of ferroelectric and ferromagnetic structures are investigated. The approach of Spaldin and coworkers, and its computational implementation, are analyzed. The search for a critical size associated with ferroic phenomena is described. Representative contributions are mentioned. Experimental work and computational modeling running at CIMAV and UACh are described.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Magnetoelectricity; multiferroic materials; nano&#150;composites.</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">Se discute la f&iacute;sica de los fen&oacute;menos megnetoel&eacute;ctricos a diferentes escalas. A niveles macro&#150; y mesosc&oacute;pico los comp&oacute;sitos magnetoestrictivo&#150;piezoelectrico exhiben hoy los mejores desempe&ntilde;os. El acoplamiento magnetoel&eacute;ctrico se obtiene mediante un v&iacute;nculo el&aacute;stico. Se presenta el modelo de Carman para la interacci&oacute;n magneto&#150;elasto&#150;el&eacute;ctrica. Se comenta resultados experimentales representativos. Se expone un an&aacute;lisis mesosc&oacute;pico de materiales magnetoel&eacute;ctricos monof&aacute;sicos. Se dan referencias a desarrollos experimentales recientes. Se discuten cuestiones b&aacute;sicas de la f&iacute;sica de la magnetoelectricidad a nivel at&oacute;mico. Se investigan las condiciones mecano&#150;cu&aacute;nticas para la coexistencia de ferroelectricidad y ferromagnetismo. Se describe la busqueda de un tama&ntilde;o cr&iacute;tico para la desaparici&oacute;n de los efectos ferroicos. Se mencionan los trabajos experimentales y de computo desarrollados por CIMAV y la UACh en magnotoelectricidad.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores</b><i>: </i>Magnetoelectricidad; materiales multiferroicos; nanocomp&oacute;sitos.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS: 75.80.+q; 77.84.&#150;s; 75.50.Dd</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
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<label>89</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Spaldin]]></surname>
<given-names><![CDATA[N.A]]></given-names>
</name>
</person-group>
<source><![CDATA[Science]]></source>
<year>2004</year>
<numero>304</numero>
<issue>304</issue>
<page-range>1606</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
