Bias-dependent oscillatory electron transport of monatomic sulfur chains

Jing-Xin Yu; Yan Cheng; Stefano Sanvito; Xiang-Rong Chen

doi:10.1063/1.3693380

Bias-dependent oscillatory electron transport of monatomic sulfur chains

Jing-Xin Yu, Yan Cheng, Stefano Sanvito, Xiang-Rong Chen

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

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.

Original language	English (US)
Pages (from-to)	103110
Journal	Applied Physics Letters
Volume	100
Issue number	10
DOIs	https://doi.org/10.1063/1.3693380
State	Published - Mar 10 2012
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: 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).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

Access to Document

10.1063/1.3693380

Cite this

@article{d8f85ffa9d434f87a780d278afe5e660,

title = "Bias-dependent oscillatory electron transport of monatomic sulfur chains",

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. {\textcopyright} 2012 American Institute of Physics.",

author = "Jing-Xin Yu and Yan Cheng and Stefano Sanvito and Xiang-Rong Chen",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: 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). This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2012",

month = mar,

day = "10",

doi = "10.1063/1.3693380",

language = "English (US)",

volume = "100",

pages = "103110",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "10",

}

TY - JOUR

T1 - Bias-dependent oscillatory electron transport of monatomic sulfur chains

AU - Yu, Jing-Xin

AU - Cheng, Yan

AU - Sanvito, Stefano

AU - Chen, Xiang-Rong

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: 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). This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2012/3/10

Y1 - 2012/3/10

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/597665

UR - http://aip.scitation.org/doi/10.1063/1.3693380

UR - http://www.scopus.com/inward/record.url?scp=84863352055&partnerID=8YFLogxK

U2 - 10.1063/1.3693380

DO - 10.1063/1.3693380

M3 - Article

SN - 0003-6951

VL - 100

SP - 103110

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 10

ER -

Bias-dependent oscillatory electron transport of monatomic sulfur chains

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this