<?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>S0035-001X2011000300009</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Single-electron Faraday generator]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Instituto Tecnológico y de Estudios Superiores de Occidente Departamento de Matemáticas y Física ]]></institution>
<addr-line><![CDATA[Tlaquepaque Jal]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2011</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2011</year>
</pub-date>
<volume>57</volume>
<numero>3</numero>
<fpage>232</fpage>
<lpage>235</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2011000300009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2011000300009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2011000300009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[In this paper I study the posibility of inducing a single-electron current by rotating a non-magnetic conducting rod with a small tunnel junction immerse in a uniform magnetic field perpendicular to the plane of motion. I show first, by using a thermodynamic approach, the conditions needed to pump electrons around the mechanical device in the Coulomb blockade regime. I then use a density matrix approach to describe the dynamics of the single-charge transport including many-body effects. The theory shows that it is possible to have single-electron tunneling (SET) oscillations at low temperatures by satisfying conditions similar to the Coulomb blockade systems.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se demuestra la posibilidad de inducir una corriente de tunelaje electrónico al rotar una varilla conductora con una junta túnel inmersa en un campo magnético homogéneo perpendicular al plano de rotación. Utilizando la energía libre de Helmholtz se obtienen las condiciones necesarias para generar una fuerza electromotriz (fem) que induce la corriente de tunelaje electrónico en el régimen de bloqueo Coulombiano. Utilizando la matriz de densidad se demuestra que es posible tener oscilaciones en el transporte electrónico de carga.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Coulomb blockade]]></kwd>
<kwd lng="en"><![CDATA[SET oscillations]]></kwd>
<kwd lng="en"><![CDATA[electromotive force]]></kwd>
<kwd lng="en"><![CDATA[tunneling Hamiltonian]]></kwd>
<kwd lng="es"><![CDATA[Bloqueo Coulombiano]]></kwd>
<kwd lng="es"><![CDATA[oscilaciones SET]]></kwd>
<kwd lng="es"><![CDATA[fuerza electromotriz]]></kwd>
<kwd lng="es"><![CDATA[Hamiltoniano de tunelaje]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="4">Investigaci&oacute;n</font></p> 	    <p align="center"><font face="verdana" size="2">&nbsp;</font></p> 	    <p align="center"><font face="verdana" size="4"><b>Single&#150;electron Faraday generator</b></font></p> 	    <p align="center"><font face="verdana" size="2">&nbsp;</font></p> 	    <p align="center"><font face="verdana" size="2"><b>G. Gonz&aacute;lez</b></font></p> 	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p> 	    <p align="justify"><font face="verdana" size="2"><i>Departamento de Matem&aacute;ticas y F&iacute;sica, Instituto Tecnol&oacute;gico y de Estudios Superiores de Occidente, Perif&eacute;rico Sur Manuel G&oacute;mez Mor&iacute;n 8585 Tlaquepaque, Jal., 45604, M&eacute;xico, e&#150;mail:</i> <a href="mailto:gabrielglez@iteso.mx">gabrielglez@iteso.mx</a>.</font></p> 	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p> 	    <p align="justify"><font face="verdana" size="2">Recibido el 24 de enero de 2011    ]]></body>
<body><![CDATA[<br>     Aceptado el 16 de marzo 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">In this paper I study the posibility of inducing a single&#150;electron current by rotating a non&#150;magnetic conducting rod with a small tunnel junction immerse in a uniform magnetic field perpendicular to the plane of motion. I show first, by using a thermodynamic approach, the conditions needed to pump electrons around the mechanical device in the Coulomb blockade regime. I then use a density matrix approach to describe the dynamics of the single&#150;charge transport including many&#150;body effects. The theory shows that it is possible to have single&#150;electron tunneling (SET) oscillations at low temperatures by satisfying conditions similar to the Coulomb blockade systems.</font></p> 	    <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Coulomb blockade; SET oscillations; electromotive force; tunneling Hamiltonian.</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 demuestra la posibilidad de inducir una corriente de tunelaje electr&oacute;nico al rotar una varilla conductora con una junta t&uacute;nel inmersa en un campo magn&eacute;tico homog&eacute;neo perpendicular al plano de rotaci&oacute;n. Utilizando la energ&iacute;a libre de Helmholtz se obtienen las condiciones necesarias para generar una fuerza electromotriz (fem) que induce la corriente de tunelaje electr&oacute;nico en el r&eacute;gimen de bloqueo Coulombiano. Utilizando la matriz de densidad se demuestra que es posible tener oscilaciones en el transporte electr&oacute;nico de carga.</font></p> 	    <p align="justify"><font face="verdana" size="2"><b>Descriptores:</b> Bloqueo Coulombiano; oscilaciones SET; fuerza electromotriz; Hamiltoniano de tunelaje.</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p> 	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">PACS: 73.23.Hk</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/v57n3/v57n3a9.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. D.V. Averin and K.K. Likharev, <i>J. of Low Temperature Physics</i> <b>62</b> (1986).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8369388&pid=S0035-001X201100030000900001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p> 	    <!-- ref --><p align="justify"><font face="verdana" size="2">2. H. Grabert and M.H. Devoret, <i>NATO ASI Series</i> Vol. 294 (Plenum Press, New York, 1992). Chap. 2.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8369390&pid=S0035-001X201100030000900002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p> 	    <!-- ref --><p align="justify"><font face="verdana" size="2">3. S. Selberherr <i>Computational Microelectronics</i> (Springer, Wien, NewYork, 2001) Chap. 2.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8369392&pid=S0035-001X201100030000900003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p> 	    <!-- ref --><p align="justify"><font face="verdana" size="2">4. L.D. Landau and E.M. Lifshitz, <i>Statistical Physics</i> Third Edition Part 1, (Butterworth&#150;Heinemann 1980).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8369394&pid=S0035-001X201100030000900004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p> 	    <!-- ref --><p align="justify"><font face="verdana" size="2">5. H.C. Ohanian and J.T. Market, <i>Physics for Engineers and Scientists</i> Vol. 2, Third Edition, (McGrawHill, page 1005 in spanish).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8369396&pid=S0035-001X201100030000900005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p> 	    <!-- ref --><p align="justify"><font face="verdana" size="2">6. D.K. Ferry and S.M. Goodnick, <i>Transport in Nanostructures</i> (Cambridge University Press, 1997).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8369398&pid=S0035-001X201100030000900006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p> 	    <!-- ref --><p align="justify"><font face="verdana" size="2">7. I. Sneddon, <i>Elements of Partial Differential Equations</i> (International Student Edition, 1957).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8369400&pid=S0035-001X201100030000900007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      ]]></body><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Averin]]></surname>
<given-names><![CDATA[D.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Likharev]]></surname>
<given-names><![CDATA[K.K.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. of Low Temperature Physics]]></source>
<year>1986</year>
<volume>62</volume>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Grabert]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Devoret]]></surname>
<given-names><![CDATA[M.H.]]></given-names>
</name>
</person-group>
<source><![CDATA[NATO ASI Series]]></source>
<year>1992</year>
<volume>294</volume>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Plenum Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Selberherr]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[Computational Microelectronics]]></source>
<year>2001</year>
<publisher-loc><![CDATA[WienNewYork ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Landau]]></surname>
<given-names><![CDATA[L.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Lifshitz]]></surname>
<given-names><![CDATA[E.M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Statistical Physics]]></source>
<year>1980</year>
<volume>Part 1</volume>
<edition>Third Edition</edition>
<publisher-name><![CDATA[Butterworth-Heinemann]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ohanian]]></surname>
<given-names><![CDATA[H.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Market]]></surname>
<given-names><![CDATA[J.T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Physics for Engineers and Scientists]]></source>
<year></year>
<volume>2</volume>
<edition>Third Edition</edition>
<page-range>1005</page-range><publisher-name><![CDATA[McGrawHill]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferry]]></surname>
<given-names><![CDATA[D.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Goodnick]]></surname>
<given-names><![CDATA[S.M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Transport in Nanostructures]]></source>
<year>1997</year>
<publisher-name><![CDATA[Cambridge University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sneddon]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<source><![CDATA[Elements of Partial Differential Equations]]></source>
<year>1957</year>
<publisher-name><![CDATA[International Student Edition]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
