Measurement of spin polarization by Andreev reflection in ferromagnetic In1-xMnxSb epilayers
Identifieur interne : 00A403 ( Main/Repository ); précédent : 00A402; suivant : 00A404Measurement of spin polarization by Andreev reflection in ferromagnetic In1-xMnxSb epilayers
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Abstract
We carried out point contact Andreev reflection (PCAR) spin spectroscopy measurements on epitaxially grown ferromagnetic In1-xMnxSb epilayers with a Curie temperature of ∼9 K. The spin sensitivity of PCAR in this material was demonstrated by parallel control studies on its nonmagnetic analog, In1-yBeySb. We found the conductance curves of the Sn point contacts with In1-yBeySb to be fairly conventional, with the possible presence of proximity-induced superconductivity effects at the lowest temperatures. These measurements provided control data for subsequent PCAR measurements on ferromagnetic In1-xMnxSb, which indicated spin polarization in In1-xMnxSb to be 52±3%. © 2004 American Institute of Physics.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Measurement of spin polarization by Andreev reflection in ferromagnetic In<sub>1-x</sub>Mn<sub>x</sub>Sb epilayers</title><author><name sortKey="Panguluri, R P" uniqKey="Panguluri R">R. P. Panguluri</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country xml:lang="fr">États-Unis</country><placeName><region type="state">Michigan</region></placeName><wicri:cityArea>Department of Physics and Astronomy, Wayne State University, Detroit</wicri:cityArea></affiliation></author><author><name sortKey="Nadgorny, B" uniqKey="Nadgorny B">B. Nadgorny</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country xml:lang="fr">États-Unis</country><placeName><region type="state">Michigan</region></placeName><wicri:cityArea>Department of Physics and Astronomy, Wayne State University, Detroit</wicri:cityArea></affiliation></author><author><name sortKey="Wojtowicz, T" uniqKey="Wojtowicz T">T. Wojtowicz</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556</s1><sZ>3 aut.</sZ></inist:fA14><country xml:lang="fr">États-Unis</country><placeName><region type="state">Indiana</region></placeName><wicri:cityArea>Department of Physics, University of Notre Dame, Notre Dame</wicri:cityArea></affiliation><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Institute of Physics, Polish Academy of Sciences, 02-668 Warsaw, Poland</s1><sZ>3 aut.</sZ></inist:fA14><country xml:lang="fr">Pologne</country><wicri:regionArea>Institute of Physics, Polish Academy of Sciences, 02-668 Warsaw</wicri:regionArea><wicri:noRegion>02-668 Warsaw</wicri:noRegion></affiliation></author><author><name sortKey="Lim, W L" uniqKey="Lim W">W. L. Lim</name><affiliation wicri:level="2"><inist:fA14 i1="04"><s1>Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556</s1><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country xml:lang="fr">États-Unis</country><placeName><region type="state">Indiana</region></placeName><wicri:cityArea>Department of Physics, University of Notre Dame, Notre Dame</wicri:cityArea></affiliation></author><author><name sortKey="Liu, X" uniqKey="Liu X">X. Liu</name><affiliation wicri:level="2"><inist:fA14 i1="04"><s1>Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556</s1><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country xml:lang="fr">États-Unis</country><placeName><region type="state">Indiana</region></placeName><wicri:cityArea>Department of Physics, University of Notre Dame, Notre Dame</wicri:cityArea></affiliation></author><author><name sortKey="Furdyna, J K" uniqKey="Furdyna J">J. K. Furdyna</name><affiliation wicri:level="2"><inist:fA14 i1="04"><s1>Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556</s1><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country xml:lang="fr">États-Unis</country><placeName><region type="state">Indiana</region></placeName><wicri:cityArea>Department of Physics, University of Notre Dame, Notre Dame</wicri:cityArea></affiliation></author></titleStmt><publicationStmt><idno type="inist">04-0267921</idno><date when="2004-06-14">2004-06-14</date><idno type="stanalyst">PASCAL 04-0267921 AIP</idno><idno type="RBID">Pascal:04-0267921</idno><idno type="wicri:Area/Main/Corpus">00B541</idno><idno type="wicri:Area/Main/Repository">00A403</idno></publicationStmt><seriesStmt><idno type="ISSN">0003-6951</idno><title level="j" type="abbreviated">Appl. phys. lett.</title><title level="j" type="main">Applied physics letters</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Curie point</term><term>Electron spin polarization</term><term>Experimental study</term><term>Ferromagnetic materials</term><term>Indium compounds</term><term>Magnetic epitaxial layers</term><term>Manganese compounds</term><term>Semimagnetic semiconductors</term><term>Spin polarized transport</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>7550P</term><term>7550D</term><term>7570A</term><term>7547</term><term>7530W</term><term>7525</term><term>7540C</term><term>Etude expérimentale</term><term>Indium composé</term><term>Manganèse composé</term><term>Semiconducteur semimagnétique</term><term>Matériau ferromagnétique</term><term>Couche épitaxique magnétique</term><term>Point Curie</term><term>Polarisation spin électronique</term><term>Transport polarisé en spin</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We carried out point contact Andreev reflection (PCAR) spin spectroscopy measurements on epitaxially grown ferromagnetic In<sub>1-x</sub>Mn<sub>x</sub>Sb epilayers with a Curie temperature of ∼9 K. The spin sensitivity of PCAR in this material was demonstrated by parallel control studies on its nonmagnetic analog, In<sub>1-y</sub>Be<sub>y</sub>Sb. We found the conductance curves of the Sn point contacts with In<sub>1-y</sub>Be<sub>y</sub>Sb to be fairly conventional, with the possible presence of proximity-induced superconductivity effects at the lowest temperatures. These measurements provided control data for subsequent PCAR measurements on ferromagnetic In<sub>1-x</sub>Mn<sub>x</sub>Sb, which indicated spin polarization in In<sub>1-x</sub>Mn<sub>x</sub>Sb to be 52±3%. © 2004 American Institute of Physics.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0003-6951</s0></fA01><fA02 i1="01"><s0>APPLAB</s0></fA02><fA03 i2="1"><s0>Appl. phys. lett.</s0></fA03><fA05><s2>84</s2></fA05><fA06><s2>24</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Measurement of spin polarization by Andreev reflection in ferromagnetic In<sub>1-x</sub>Mn<sub>x</sub>Sb epilayers</s1></fA08><fA11 i1="01" i2="1"><s1>PANGULURI (R. P.)</s1></fA11><fA11 i1="02" i2="1"><s1>NADGORNY (B.)</s1></fA11><fA11 i1="03" i2="1"><s1>WOJTOWICZ (T.)</s1></fA11><fA11 i1="04" i2="1"><s1>LIM (W. L.)</s1></fA11><fA11 i1="05" i2="1"><s1>LIU (X.)</s1></fA11><fA11 i1="06" i2="1"><s1>FURDYNA (J. K.)</s1></fA11><fA14 i1="01"><s1>Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA14 i1="02"><s1>Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556</s1><sZ>3 aut.</sZ></fA14><fA14 i1="03"><s1>Institute of Physics, Polish Academy of Sciences, 02-668 Warsaw, Poland</s1><sZ>3 aut.</sZ></fA14><fA14 i1="04"><s1>Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556</s1><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>6 aut.</sZ></fA14><fA20><s1>4947-4949</s1></fA20><fA21><s1>2004-06-14</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>10020</s2></fA43><fA44><s0>8100</s0><s1>© 2004 American Institute of Physics. All rights reserved.</s1></fA44><fA47 i1="01" i2="1"><s0>04-0267921</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Applied physics letters</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>We carried out point contact Andreev reflection (PCAR) spin spectroscopy measurements on epitaxially grown ferromagnetic In<sub>1-x</sub>Mn<sub>x</sub>Sb epilayers with a Curie temperature of ∼9 K. The spin sensitivity of PCAR in this material was demonstrated by parallel control studies on its nonmagnetic analog, In<sub>1-y</sub>Be<sub>y</sub>Sb. We found the conductance curves of the Sn point contacts with In<sub>1-y</sub>Be<sub>y</sub>Sb to be fairly conventional, with the possible presence of proximity-induced superconductivity effects at the lowest temperatures. These measurements provided control data for subsequent PCAR measurements on ferromagnetic In<sub>1-x</sub>Mn<sub>x</sub>Sb, which indicated spin polarization in In<sub>1-x</sub>Mn<sub>x</sub>Sb to be 52±3%. © 2004 American Institute of Physics.</s0></fC01><fC02 i1="01" i2="3"><s0>001B70E50P</s0></fC02><fC02 i1="02" i2="3"><s0>001B70E50D</s0></fC02><fC02 i1="03" i2="3"><s0>001B70E70A</s0></fC02><fC02 i1="04" i2="3"><s0>001B70E47</s0></fC02><fC02 i1="05" i2="3"><s0>001B70E30W</s0></fC02><fC02 i1="06" i2="3"><s0>001B70E25</s0></fC02><fC02 i1="07" i2="3"><s0>001B70E40C</s0></fC02><fC03 i1="01" i2="3" l="FRE"><s0>7550P</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="02" i2="3" l="FRE"><s0>7550D</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="03" i2="3" l="FRE"><s0>7570A</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="04" i2="3" l="FRE"><s0>7547</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="05" i2="3" l="FRE"><s0>7530W</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="06" i2="3" l="FRE"><s0>7525</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="07" i2="3" l="FRE"><s0>7540C</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="08" i2="3" l="FRE"><s0>Etude expérimentale</s0></fC03><fC03 i1="08" i2="3" l="ENG"><s0>Experimental study</s0></fC03><fC03 i1="09" i2="3" l="FRE"><s0>Indium composé</s0></fC03><fC03 i1="09" i2="3" l="ENG"><s0>Indium compounds</s0></fC03><fC03 i1="10" i2="3" l="FRE"><s0>Manganèse composé</s0></fC03><fC03 i1="10" i2="3" l="ENG"><s0>Manganese compounds</s0></fC03><fC03 i1="11" i2="3" l="FRE"><s0>Semiconducteur semimagnétique</s0></fC03><fC03 i1="11" i2="3" l="ENG"><s0>Semimagnetic semiconductors</s0></fC03><fC03 i1="12" i2="3" l="FRE"><s0>Matériau ferromagnétique</s0></fC03><fC03 i1="12" i2="3" l="ENG"><s0>Ferromagnetic materials</s0></fC03><fC03 i1="13" i2="3" l="FRE"><s0>Couche épitaxique magnétique</s0></fC03><fC03 i1="13" i2="3" l="ENG"><s0>Magnetic epitaxial layers</s0></fC03><fC03 i1="14" i2="3" l="FRE"><s0>Point Curie</s0></fC03><fC03 i1="14" i2="3" l="ENG"><s0>Curie point</s0></fC03><fC03 i1="15" i2="3" l="FRE"><s0>Polarisation spin électronique</s0></fC03><fC03 i1="15" i2="3" l="ENG"><s0>Electron spin polarization</s0></fC03><fC03 i1="16" i2="3" l="FRE"><s0>Transport polarisé en spin</s0></fC03><fC03 i1="16" i2="3" l="ENG"><s0>Spin polarized transport</s0></fC03><fN21><s1>166</s1></fN21><fN47 i1="01" i2="1"><s0>0422M000060</s0></fN47></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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