Bias-dependent oscillatory electron transport of monatomic sulfur chains

Handle URI:
http://hdl.handle.net/10754/597665
Title:
Bias-dependent oscillatory electron transport of monatomic sulfur chains
Authors:
Yu, Jing-Xin; Cheng, Yan; Sanvito, Stefano; Chen, Xiang-Rong
Abstract:
The bias-dependent oscillatory electron transport of monatomic sulfur chains sandwiched between gold electrodes is investigated with density functional theory and non-equilibrium Green's function method. At zero bias, in contrast to the typical odd-even oscillations observed in most metallic chains, we find that the conductance oscillates with a period of four atoms. However, as the bias voltage is increased the current displays a two-atom periodicity. This emerges gradually, first for the longer chains and then, at voltages larger than 0.7 V, for lengths. The oscillatory behaviors are analyzed by the density of states and the energy-dependent and bias-dependent transmission coefficients. © 2012 American Institute of Physics.
Citation:
Yu J-X, Cheng Y, Sanvito S, Chen X-R (2012) Bias-dependent oscillatory electron transport of monatomic sulfur chains. Applied Physics Letters 100: 103110. Available: http://dx.doi.org/10.1063/1.3693380.
Publisher:
AIP Publishing
Journal:
Applied Physics Letters
Issue Date:
2012
DOI:
10.1063/1.3693380
Type:
Article
ISSN:
0003-6951
Sponsors:
The authors would like to thank the support by the National Natural Science Foundation of China (Grant No. 11174214) and by the SRFDP (Grant No. 20090181110080). The SMEAGOL project (SS) is sponsored by Science Foundation of Ireland (Grant No. 07/IN.1/I945), CRANN and KAUST (ACRAB project).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorYu, Jing-Xinen
dc.contributor.authorCheng, Yanen
dc.contributor.authorSanvito, Stefanoen
dc.contributor.authorChen, Xiang-Rongen
dc.date.accessioned2016-02-25T12:44:00Zen
dc.date.available2016-02-25T12:44:00Zen
dc.date.issued2012en
dc.identifier.citationYu J-X, Cheng Y, Sanvito S, Chen X-R (2012) Bias-dependent oscillatory electron transport of monatomic sulfur chains. Applied Physics Letters 100: 103110. Available: http://dx.doi.org/10.1063/1.3693380.en
dc.identifier.issn0003-6951en
dc.identifier.doi10.1063/1.3693380en
dc.identifier.urihttp://hdl.handle.net/10754/597665en
dc.description.abstractThe bias-dependent oscillatory electron transport of monatomic sulfur chains sandwiched between gold electrodes is investigated with density functional theory and non-equilibrium Green's function method. At zero bias, in contrast to the typical odd-even oscillations observed in most metallic chains, we find that the conductance oscillates with a period of four atoms. However, as the bias voltage is increased the current displays a two-atom periodicity. This emerges gradually, first for the longer chains and then, at voltages larger than 0.7 V, for lengths. The oscillatory behaviors are analyzed by the density of states and the energy-dependent and bias-dependent transmission coefficients. © 2012 American Institute of Physics.en
dc.description.sponsorshipThe authors would like to thank the support by the National Natural Science Foundation of China (Grant No. 11174214) and by the SRFDP (Grant No. 20090181110080). The SMEAGOL project (SS) is sponsored by Science Foundation of Ireland (Grant No. 07/IN.1/I945), CRANN and KAUST (ACRAB project).en
dc.publisherAIP Publishingen
dc.titleBias-dependent oscillatory electron transport of monatomic sulfur chainsen
dc.typeArticleen
dc.identifier.journalApplied Physics Lettersen
dc.contributor.institutionSichuan University, Chengdu, Chinaen
dc.contributor.institutionTrinity College Dublin, Dublin, Irelanden
dc.contributor.institutionInternational Center for Material Physics, Chinese Academy of Sciences, Shenyang, Chinaen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.