Co-tunneling effects on transport in the spin blockade regime

Using non-equilibrium Green's function technique with auxiliary-particle operators, we study co-tunneling effects on transport through double quantum dots in the spin blockade regime. We construct the Luttinger-Ward functional by summing infinite number of Feynman diagrams under the non-crossin...

Full description

Saved in:
Bibliographic Details
Main Authors: Jung Hyun Oh, Bubanja, V., Mincheol Shin, Seok-Hee Lee
Format: Conference Proceeding
Language:English
Subjects:
Chemicals
Electric potential
Electrodes
Equations
Mathematical model
Quantum dots
Tunneling
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites
container_end_page 1136
container_issue
container_start_page 1133
container_title
container_volume
creator Jung Hyun Oh
Bubanja, V.
Mincheol Shin
Seok-Hee Lee
description Using non-equilibrium Green's function technique with auxiliary-particle operators, we study co-tunneling effects on transport through double quantum dots in the spin blockade regime. We construct the Luttinger-Ward functional by summing infinite number of Feynman diagrams under the non-crossing approximation and, thereby, tunneling currents are calculated in conservative ways for a finite Coulomb potential U. We find that co-tunneling results in Kondo resonance peaks along the chemical potential even in high bias voltages and leads to relatively large occupation probabilities of states which would be prohibited in sequential tunneling cases. As a result, conductance peaks are broadened and large leakage currents are found in the spin blockade regime, which may lead to errors in the spin read-out.
doi_str_mv 10.1109/NANO.2011.6144495
format conference_proceeding
fullrecord <record><control><sourceid>ieee_CHZPO</sourceid><recordid>TN_cdi_ieee_primary_6144495</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><ieee_id>6144495</ieee_id><sourcerecordid>6144495</sourcerecordid><originalsourceid>FETCH-LOGICAL-i90t-29432d633c96af3b7bdaa9345f7ba546389592c2223119af07700abcb8ee39e23</originalsourceid><addsrcrecordid>eNpVkM1OwzAQhA20ElXJAyAueYEEr9exswcOVcSfVLWX3isnWZdAmkRxOPD2FFEhMZeZ0SfNYYS4BZkCSLrfrDbbVEmA1IDWmrILEZHNQWfWQgbGXooFkNYJYS6v_jGNsz9GNBezn5lrEYXwLk8yhrSEhXgo-mT67Dpum-4Qs_dcTSHuu3gaXReGfpzi5lTeOA7DKZRtX324muORD82Rb8TcuzZwdPal2D097oqXZL19fi1W66QhOSWKNKraIFZknMfSlrVzhDrztnSZNphTRqpSSiEAOS-tldKVVZkzI7HCpbj7nW2YeT-MzdGNX_vzJfgNY1hN0Q</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>conference_proceeding</recordtype></control><display><type>conference_proceeding</type><title>Co-tunneling effects on transport in the spin blockade regime</title><source>IEEE Xplore All Conference Series</source><creator>Jung Hyun Oh ; Bubanja, V. ; Mincheol Shin ; Seok-Hee Lee</creator><creatorcontrib>Jung Hyun Oh ; Bubanja, V. ; Mincheol Shin ; Seok-Hee Lee</creatorcontrib><description>Using non-equilibrium Green's function technique with auxiliary-particle operators, we study co-tunneling effects on transport through double quantum dots in the spin blockade regime. We construct the Luttinger-Ward functional by summing infinite number of Feynman diagrams under the non-crossing approximation and, thereby, tunneling currents are calculated in conservative ways for a finite Coulomb potential U. We find that co-tunneling results in Kondo resonance peaks along the chemical potential even in high bias voltages and leads to relatively large occupation probabilities of states which would be prohibited in sequential tunneling cases. As a result, conductance peaks are broadened and large leakage currents are found in the spin blockade regime, which may lead to errors in the spin read-out.</description><identifier>ISSN: 1944-9399</identifier><identifier>ISBN: 9781457715143</identifier><identifier>ISBN: 1457715147</identifier><identifier>EISSN: 1944-9380</identifier><identifier>EISBN: 9781457715167</identifier><identifier>EISBN: 1457715163</identifier><identifier>EISBN: 1457715155</identifier><identifier>EISBN: 9781457715150</identifier><identifier>DOI: 10.1109/NANO.2011.6144495</identifier><identifier>LCCN: 2011</identifier><language>eng</language><publisher>IEEE</publisher><subject>Chemicals ; Electric potential ; Electrodes ; Equations ; Mathematical model ; Quantum dots ; Tunneling</subject><ispartof>2011 11th IEEE International Conference on Nanotechnology, 2011, p.1133-1136</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/6144495$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,776,780,785,786,2051,27904,54533,54898,54910</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/6144495$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Jung Hyun Oh</creatorcontrib><creatorcontrib>Bubanja, V.</creatorcontrib><creatorcontrib>Mincheol Shin</creatorcontrib><creatorcontrib>Seok-Hee Lee</creatorcontrib><title>Co-tunneling effects on transport in the spin blockade regime</title><title>2011 11th IEEE International Conference on Nanotechnology</title><addtitle>NANO</addtitle><description>Using non-equilibrium Green's function technique with auxiliary-particle operators, we study co-tunneling effects on transport through double quantum dots in the spin blockade regime. We construct the Luttinger-Ward functional by summing infinite number of Feynman diagrams under the non-crossing approximation and, thereby, tunneling currents are calculated in conservative ways for a finite Coulomb potential U. We find that co-tunneling results in Kondo resonance peaks along the chemical potential even in high bias voltages and leads to relatively large occupation probabilities of states which would be prohibited in sequential tunneling cases. As a result, conductance peaks are broadened and large leakage currents are found in the spin blockade regime, which may lead to errors in the spin read-out.</description><subject>Chemicals</subject><subject>Electric potential</subject><subject>Electrodes</subject><subject>Equations</subject><subject>Mathematical model</subject><subject>Quantum dots</subject><subject>Tunneling</subject><issn>1944-9399</issn><issn>1944-9380</issn><isbn>9781457715143</isbn><isbn>1457715147</isbn><isbn>9781457715167</isbn><isbn>1457715163</isbn><isbn>1457715155</isbn><isbn>9781457715150</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2011</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><recordid>eNpVkM1OwzAQhA20ElXJAyAueYEEr9exswcOVcSfVLWX3isnWZdAmkRxOPD2FFEhMZeZ0SfNYYS4BZkCSLrfrDbbVEmA1IDWmrILEZHNQWfWQgbGXooFkNYJYS6v_jGNsz9GNBezn5lrEYXwLk8yhrSEhXgo-mT67Dpum-4Qs_dcTSHuu3gaXReGfpzi5lTeOA7DKZRtX324muORD82Rb8TcuzZwdPal2D097oqXZL19fi1W66QhOSWKNKraIFZknMfSlrVzhDrztnSZNphTRqpSSiEAOS-tldKVVZkzI7HCpbj7nW2YeT-MzdGNX_vzJfgNY1hN0Q</recordid><startdate>201108</startdate><enddate>201108</enddate><creator>Jung Hyun Oh</creator><creator>Bubanja, V.</creator><creator>Mincheol Shin</creator><creator>Seok-Hee Lee</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>201108</creationdate><title>Co-tunneling effects on transport in the spin blockade regime</title><author>Jung Hyun Oh ; Bubanja, V. ; Mincheol Shin ; Seok-Hee Lee</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i90t-29432d633c96af3b7bdaa9345f7ba546389592c2223119af07700abcb8ee39e23</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Chemicals</topic><topic>Electric potential</topic><topic>Electrodes</topic><topic>Equations</topic><topic>Mathematical model</topic><topic>Quantum dots</topic><topic>Tunneling</topic><toplevel>online_resources</toplevel><creatorcontrib>Jung Hyun Oh</creatorcontrib><creatorcontrib>Bubanja, V.</creatorcontrib><creatorcontrib>Mincheol Shin</creatorcontrib><creatorcontrib>Seok-Hee Lee</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Jung Hyun Oh</au><au>Bubanja, V.</au><au>Mincheol Shin</au><au>Seok-Hee Lee</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Co-tunneling effects on transport in the spin blockade regime</atitle><btitle>2011 11th IEEE International Conference on Nanotechnology</btitle><stitle>NANO</stitle><date>2011-08</date><risdate>2011</risdate><spage>1133</spage><epage>1136</epage><pages>1133-1136</pages><issn>1944-9399</issn><eissn>1944-9380</eissn><isbn>9781457715143</isbn><isbn>1457715147</isbn><eisbn>9781457715167</eisbn><eisbn>1457715163</eisbn><eisbn>1457715155</eisbn><eisbn>9781457715150</eisbn><abstract>Using non-equilibrium Green's function technique with auxiliary-particle operators, we study co-tunneling effects on transport through double quantum dots in the spin blockade regime. We construct the Luttinger-Ward functional by summing infinite number of Feynman diagrams under the non-crossing approximation and, thereby, tunneling currents are calculated in conservative ways for a finite Coulomb potential U. We find that co-tunneling results in Kondo resonance peaks along the chemical potential even in high bias voltages and leads to relatively large occupation probabilities of states which would be prohibited in sequential tunneling cases. As a result, conductance peaks are broadened and large leakage currents are found in the spin blockade regime, which may lead to errors in the spin read-out.</abstract><pub>IEEE</pub><doi>10.1109/NANO.2011.6144495</doi><tpages>4</tpages></addata></record>
fulltext fulltext_linktorsrc
identifier ISSN: 1944-9399
ispartof 2011 11th IEEE International Conference on Nanotechnology, 2011, p.1133-1136
issn 1944-9399
1944-9380
language eng
recordid cdi_ieee_primary_6144495
source IEEE Xplore All Conference Series
subjects Chemicals
Electric potential
Electrodes
Equations
Mathematical model
Quantum dots
Tunneling
title Co-tunneling effects on transport in the spin blockade regime
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-26T22%3A53%3A26IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-ieee_CHZPO&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=proceeding&rft.atitle=Co-tunneling%20effects%20on%20transport%20in%20the%20spin%20blockade%20regime&rft.btitle=2011%2011th%20IEEE%20International%20Conference%20on%20Nanotechnology&rft.au=Jung%20Hyun%20Oh&rft.date=2011-08&rft.spage=1133&rft.epage=1136&rft.pages=1133-1136&rft.issn=1944-9399&rft.eissn=1944-9380&rft.isbn=9781457715143&rft.isbn_list=1457715147&rft_id=info:doi/10.1109/NANO.2011.6144495&rft.eisbn=9781457715167&rft.eisbn_list=1457715163&rft.eisbn_list=1457715155&rft.eisbn_list=9781457715150&rft_dat=%3Cieee_CHZPO%3E6144495%3C/ieee_CHZPO%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-i90t-29432d633c96af3b7bdaa9345f7ba546389592c2223119af07700abcb8ee39e23%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rft_ieee_id=6144495&rfr_iscdi=true