File Download
 
Links for fulltext
(May Require Subscription)
 
Supplementary

Article: Interplay between topological insulators and superconductors
  • Basic View
  • Metadata View
  • XML View
TitleInterplay between topological insulators and superconductors
 
AuthorsWang, J6 3
Chang, CZ1 5
Li, H2 4
He, K1
Zhang, D3
Singh, M3
Ma, XC1
Samarth, N3
Xie, M2
Xue, QK1 5
Chan, MHW3
 
Issue Date2012
 
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
 
CitationPhysical Review B - Condensed Matter And Materials Physics, 2012, v. 85 n. 4 [How to Cite?]
DOI: http://dx.doi.org/10.1103/PhysRevB.85.045415
 
AbstractTopological insulators are insulating in the bulk but possess metallic surface states protected by time-reversal symmetry. Here, we report on a detailed electronic transport study in high-quality Bi 2Se 3 topological insulator thin films contacted by superconducting (In, Al, and W) electrodes. The resistance of the film shows an abrupt and significant upturn when the electrodes become superconducting. In turn, the Bi 2Se 3 film greatly weakens the superconductivity of the electrodes, significantly reducing both their transition temperatures and their critical fields. A possible interpretation of these results is that the superconducting electrodes are accessing the surface states and the experimental results are consequences of the interplay between the Cooper pairs of the electrodes and the spin-polarized current of the surface states in Bi 2Se 3. © 2012 American Physical Society.
 
ISSN1098-0121
2012 Impact Factor: 3.767
2012 SCImago Journal Rankings: 2.393
 
DOIhttp://dx.doi.org/10.1103/PhysRevB.85.045415
 
ISI Accession Number IDWOS:000298987700002
Funding AgencyGrant Number
Pennsylvania State University Materials Research Science and Engineering Center under US National Science FoundationDMR-0820404
National Basic Research Program of China2012CB921300
Research Grant Council of the Hong Kong Special Administrative RegionHKU 7061/10P
HKU 10/CRF/08
(Chinese) National Science Foundation
Ministry of Science and Technology of China
National Natural Science Foundation of China11174007
Funding Information:

This work was supported by the Pennsylvania State University Materials Research Science and Engineering Center under US National Science Foundation Grant No. DMR-0820404, the National Basic Research Program of China (Grant No. 2012CB921300), the General Research Fund (Grant No. HKU 7061/10P) and Collaborative Research Fund (Grant No. HKU 10/CRF/08) from the Research Grant Council of the Hong Kong Special Administrative Region, the (Chinese) National Science Foundation, the Ministry of Science and Technology of China, the National Natural Science Foundation of China (Grant No. 11174007). We are grateful to J. Jain, X. Qi, S. Zhang, L. Fu, C. Liu, Y. Ran, and M. Tian for illuminating discussions.

 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorWang, J
 
dc.contributor.authorChang, CZ
 
dc.contributor.authorLi, H
 
dc.contributor.authorHe, K
 
dc.contributor.authorZhang, D
 
dc.contributor.authorSingh, M
 
dc.contributor.authorMa, XC
 
dc.contributor.authorSamarth, N
 
dc.contributor.authorXie, M
 
dc.contributor.authorXue, QK
 
dc.contributor.authorChan, MHW
 
dc.date.accessioned2012-02-03T06:14:14Z
 
dc.date.available2012-02-03T06:14:14Z
 
dc.date.issued2012
 
dc.description.abstractTopological insulators are insulating in the bulk but possess metallic surface states protected by time-reversal symmetry. Here, we report on a detailed electronic transport study in high-quality Bi 2Se 3 topological insulator thin films contacted by superconducting (In, Al, and W) electrodes. The resistance of the film shows an abrupt and significant upturn when the electrodes become superconducting. In turn, the Bi 2Se 3 film greatly weakens the superconductivity of the electrodes, significantly reducing both their transition temperatures and their critical fields. A possible interpretation of these results is that the superconducting electrodes are accessing the surface states and the experimental results are consequences of the interplay between the Cooper pairs of the electrodes and the spin-polarized current of the surface states in Bi 2Se 3. © 2012 American Physical Society.
 
dc.description.naturepublished_or_final_version
 
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2012, v. 85 n. 4 [How to Cite?]
DOI: http://dx.doi.org/10.1103/PhysRevB.85.045415
 
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.85.045415
 
dc.identifier.epage045415-7
 
dc.identifier.hkuros198604
 
dc.identifier.isiWOS:000298987700002
Funding AgencyGrant Number
Pennsylvania State University Materials Research Science and Engineering Center under US National Science FoundationDMR-0820404
National Basic Research Program of China2012CB921300
Research Grant Council of the Hong Kong Special Administrative RegionHKU 7061/10P
HKU 10/CRF/08
(Chinese) National Science Foundation
Ministry of Science and Technology of China
National Natural Science Foundation of China11174007
Funding Information:

This work was supported by the Pennsylvania State University Materials Research Science and Engineering Center under US National Science Foundation Grant No. DMR-0820404, the National Basic Research Program of China (Grant No. 2012CB921300), the General Research Fund (Grant No. HKU 7061/10P) and Collaborative Research Fund (Grant No. HKU 10/CRF/08) from the Research Grant Council of the Hong Kong Special Administrative Region, the (Chinese) National Science Foundation, the Ministry of Science and Technology of China, the National Natural Science Foundation of China (Grant No. 11174007). We are grateful to J. Jain, X. Qi, S. Zhang, L. Fu, C. Liu, Y. Ran, and M. Tian for illuminating discussions.

 
dc.identifier.issn1098-0121
2012 Impact Factor: 3.767
2012 SCImago Journal Rankings: 2.393
 
dc.identifier.issue4
 
dc.identifier.scopuseid_2-s2.0-84863011627
 
dc.identifier.spage045415-1
 
dc.identifier.urihttp://hdl.handle.net/10722/144568
 
dc.identifier.volume85
 
dc.languageeng
 
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
 
dc.publisher.placeUnited States
 
dc.relation.ispartofPhysical Review B - Condensed Matter and Materials Physics
 
dc.relation.referencesReferences in Scopus
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
 
dc.rightsPhysical Review B (Condensed Matter and Materials Physics). Copyright © American Physical Society.
 
dc.titleInterplay between topological insulators and superconductors
 
dc.typeArticle
 
<?xml encoding="utf-8" version="1.0"?>
<item><contributor.author>Wang, J</contributor.author>
<contributor.author>Chang, CZ</contributor.author>
<contributor.author>Li, H</contributor.author>
<contributor.author>He, K</contributor.author>
<contributor.author>Zhang, D</contributor.author>
<contributor.author>Singh, M</contributor.author>
<contributor.author>Ma, XC</contributor.author>
<contributor.author>Samarth, N</contributor.author>
<contributor.author>Xie, M</contributor.author>
<contributor.author>Xue, QK</contributor.author>
<contributor.author>Chan, MHW</contributor.author>
<date.accessioned>2012-02-03T06:14:14Z</date.accessioned>
<date.available>2012-02-03T06:14:14Z</date.available>
<date.issued>2012</date.issued>
<identifier.citation>Physical Review B - Condensed Matter And Materials Physics, 2012, v. 85 n. 4</identifier.citation>
<identifier.issn>1098-0121</identifier.issn>
<identifier.uri>http://hdl.handle.net/10722/144568</identifier.uri>
<description.abstract>Topological insulators are insulating in the bulk but possess metallic surface states protected by time-reversal symmetry. Here, we report on a detailed electronic transport study in high-quality Bi 2Se 3 topological insulator thin films contacted by superconducting (In, Al, and W) electrodes. The resistance of the film shows an abrupt and significant upturn when the electrodes become superconducting. In turn, the Bi 2Se 3 film greatly weakens the superconductivity of the electrodes, significantly reducing both their transition temperatures and their critical fields. A possible interpretation of these results is that the superconducting electrodes are accessing the surface states and the experimental results are consequences of the interplay between the Cooper pairs of the electrodes and the spin-polarized current of the surface states in Bi 2Se 3. &#169; 2012 American Physical Society.</description.abstract>
<language>eng</language>
<publisher>American Physical Society. The Journal&apos;s web site is located at http://prb.aps.org/</publisher>
<relation.ispartof>Physical Review B - Condensed Matter and Materials Physics</relation.ispartof>
<rights>Creative Commons: Attribution 3.0 Hong Kong License</rights>
<rights>Physical Review B (Condensed Matter and Materials Physics). Copyright &#169; American Physical Society.</rights>
<title>Interplay between topological insulators and superconductors</title>
<type>Article</type>
<description.nature>published_or_final_version</description.nature>
<identifier.doi>10.1103/PhysRevB.85.045415</identifier.doi>
<identifier.scopus>eid_2-s2.0-84863011627</identifier.scopus>
<identifier.hkuros>198604</identifier.hkuros>
<relation.references>http://www.scopus.com/mlt/select.url?eid=2-s2.0-84863011627&amp;selection=ref&amp;src=s&amp;origin=recordpage</relation.references>
<identifier.volume>85</identifier.volume>
<identifier.issue>4</identifier.issue>
<identifier.spage>045415-1</identifier.spage>
<identifier.epage>045415-7</identifier.epage>
<identifier.isi>WOS:000298987700002</identifier.isi>
<publisher.place>United States</publisher.place>
<bitstream.url>http://hub.hku.hk/bitstream/10722/144568/1/Content.pdf</bitstream.url>
</item>
Author Affiliations
  1. Institute of Physics Chinese Academy of Sciences
  2. The University of Hong Kong
  3. Pennsylvania State University
  4. University of Electronic Science and Technology of China
  5. Tsinghua University
  6. Peking University