Absorption of surface acoustic waves by a two-dimensional electron gas in the presence of spin-orbit interaction
Identifieur interne : 00C021 ( Main/Repository ); précédent : 00C020; suivant : 00C022Absorption of surface acoustic waves by a two-dimensional electron gas in the presence of spin-orbit interaction
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Abstract
A theoretical study is presented for interactions between surface acoustic waves (SAWs) and a two-dimensional electron gas (2DEG) in the presence of spin-orbit (SO) interaction (SOI) induced by the Rashba effect. It is found that the presence of the SOI in a 2DEG can open up new channels for electronic transitions. As a result, an enhanced absorption of the SAWs by a 2DEG can be achieved through intra- and inter-SO electronic transition around the Fermi level. These results indicate that spintronic systems can be the candidate of the SAW devices. © 2003 American Institute of Physics.
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Xu</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Theoretical Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country xml:lang="fr">Australie</country><wicri:regionArea>Department of Theoretical Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200</wicri:regionArea><wicri:noRegion>ACT 0200</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Physics, Sichuan University, Chengdu 610064, China</s1></inist:fA14><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Physics, Sichuan University, Chengdu 610064</wicri:regionArea><wicri:noRegion>Chengdu 610064</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Physics Division, National Center for Theoretical Sciences, P.O. Box 2-131, Hsinchu 30013, Taiwan</s1></inist:fA14><country xml:lang="fr">République de Chine (Taïwan)</country><wicri:regionArea>Physics Division, National Center for Theoretical Sciences, P.O. Box 2-131, Hsinchu 30013</wicri:regionArea><wicri:noRegion>Hsinchu 30013</wicri:noRegion></affiliation></author><author><name sortKey="Lin, L B" uniqKey="Lin L">L. B. Lin</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Theoretical Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country xml:lang="fr">Australie</country><wicri:regionArea>Department of Theoretical Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200</wicri:regionArea><wicri:noRegion>ACT 0200</wicri:noRegion></affiliation></author><author><name sortKey="Tang, C S" uniqKey="Tang C">C. S. Tang</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Theoretical Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country xml:lang="fr">Australie</country><wicri:regionArea>Department of Theoretical Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200</wicri:regionArea><wicri:noRegion>ACT 0200</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">03-0352542</idno><date when="2003-09-01">2003-09-01</date><idno type="stanalyst">PASCAL 03-0352542 AIP</idno><idno type="RBID">Pascal:03-0352542</idno><idno type="wicri:Area/Main/Corpus">00CC68</idno><idno type="wicri:Area/Main/Repository">00C021</idno></publicationStmt><seriesStmt><idno type="ISSN">0021-8979</idno><title level="j" type="abbreviated">J. appl. phys.</title><title level="j" type="main">Journal of applied physics</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acoustic surface waves</term><term>Acoustic wave absorption</term><term>Fermi level</term><term>Gallium arsenides</term><term>III-V semiconductors</term><term>Indium compounds</term><term>Semiconductor quantum wells</term><term>Spin-orbit interactions</term><term>Theoretical study</term><term>Two-dimensional electron gas</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>7321F</term><term>6835I</term><term>7170E</term><term>Etude théorique</term><term>Onde acoustique surface</term><term>Absorption onde acoustique</term><term>Gaz électron 2 dimensions</term><term>Interaction spin orbite</term><term>Niveau Fermi</term><term>Indium composé</term><term>Gallium arséniure</term><term>Semiconducteur III-V</term><term>Puits quantique semiconducteur</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A theoretical study is presented for interactions between surface acoustic waves (SAWs) and a two-dimensional electron gas (2DEG) in the presence of spin-orbit (SO) interaction (SOI) induced by the Rashba effect. It is found that the presence of the SOI in a 2DEG can open up new channels for electronic transitions. As a result, an enhanced absorption of the SAWs by a 2DEG can be achieved through intra- and inter-SO electronic transition around the Fermi level. These results indicate that spintronic systems can be the candidate of the SAW devices. © 2003 American Institute of Physics.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0021-8979</s0></fA01><fA02 i1="01"><s0>JAPIAU</s0></fA02><fA03 i2="1"><s0>J. appl. phys.</s0></fA03><fA05><s2>94</s2></fA05><fA06><s2>5</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Absorption of surface acoustic waves by a two-dimensional electron gas in the presence of spin-orbit interaction</s1></fA08><fA11 i1="01" i2="1"><s1>XU (W.)</s1></fA11><fA11 i1="02" i2="1"><s1>LIN (L. B.)</s1></fA11><fA11 i1="03" i2="1"><s1>TANG (C. S.)</s1></fA11><fA14 i1="01"><s1>Department of Theoretical Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></fA14><fA14 i1="02"><s1>Department of Physics, Sichuan University, Chengdu 610064, China</s1></fA14><fA14 i1="03"><s1>Physics Division, National Center for Theoretical Sciences, P.O. Box 2-131, Hsinchu 30013, Taiwan</s1></fA14><fA20><s1>3229-3232</s1></fA20><fA21><s1>2003-09-01</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>126</s2></fA43><fA44><s0>8100</s0><s1>© 2003 American Institute of Physics. All rights reserved.</s1></fA44><fA47 i1="01" i2="1"><s0>03-0352542</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Journal of applied physics</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>A theoretical study is presented for interactions between surface acoustic waves (SAWs) and a two-dimensional electron gas (2DEG) in the presence of spin-orbit (SO) interaction (SOI) induced by the Rashba effect. It is found that the presence of the SOI in a 2DEG can open up new channels for electronic transitions. As a result, an enhanced absorption of the SAWs by a 2DEG can be achieved through intra- and inter-SO electronic transition around the Fermi level. 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