File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Dynamic spin-polarized shot noise in a quantum dot coupled to ferromagnetic terminals under the perturbation of ac fields

TitleDynamic spin-polarized shot noise in a quantum dot coupled to ferromagnetic terminals under the perturbation of ac fields
Authors
Issue Date2010
PublisherSpringer. The Journal's web site is located at http://epjb.edpsciences.org
Citation
European Physical Journal B. Condensed Matter and Complex Systems, 2010, v. 77 n. 3, p. 441-451 How to Cite?
AbstractWe have investigated the shot noise in the mesoscopic system composed of a quantum dot (QD) coupled to ferromagnetic terminals under the perturbation of ac fields. The shot noise has been derived using the nonequilibrium Green's function (NGF) technique to describe the spin polarization effect along with photon absorption and emission processes in the Coulomb blockade regime. We have examined the influence of spin polarization on the shot noise under the perturbation of ac fields in the nonadiabatic regime. The Coulomb blockade effect results in the modification of shot noise compared with the noninteracting case. The spin orientation contributes a spin valve effect for controlling electron tunnelling through this QD, and different resonant forms appear around the Coulomb blockade channel. The photon-assisted spin-splitting and spin-polarization effect contributes a photon-assisted spin valve to adjust the electron tunnelling current and shot noise. The spin-polarization effect varies the value of the Fano factor. However, it does not change the noise type from sub-Poissonian to super-Poissonian.
Persistent Identifierhttp://hdl.handle.net/10722/129350
ISSN
2015 Impact Factor: 1.223
2015 SCImago Journal Rankings: 0.524
ISI Accession Number ID
Funding AgencyGrant Number
SAR Government of Hong KongHKU 704308P
National Natural Science Foundation of China10775014
Research Fund for the Doctoral Program of Higher Education of China20091101110040
Funding Information:

This work was supported by a RGC grant from the SAR Government of Hong Kong under Grant No. HKU 704308P, the National Natural Science Foundation of China under the Grant No. 10775014, and by Research Fund for the Doctoral Program of Higher Education of China under the Grant No. 20091101110040.

Grants

 

DC FieldValueLanguage
dc.contributor.authorZhao, HKen_US
dc.contributor.authorZhao, LLen_US
dc.contributor.authorWang, Jen_US
dc.date.accessioned2010-12-23T08:35:44Z-
dc.date.available2010-12-23T08:35:44Z-
dc.date.issued2010en_US
dc.identifier.citationEuropean Physical Journal B. Condensed Matter and Complex Systems, 2010, v. 77 n. 3, p. 441-451en_US
dc.identifier.issn1434-6028-
dc.identifier.urihttp://hdl.handle.net/10722/129350-
dc.description.abstractWe have investigated the shot noise in the mesoscopic system composed of a quantum dot (QD) coupled to ferromagnetic terminals under the perturbation of ac fields. The shot noise has been derived using the nonequilibrium Green's function (NGF) technique to describe the spin polarization effect along with photon absorption and emission processes in the Coulomb blockade regime. We have examined the influence of spin polarization on the shot noise under the perturbation of ac fields in the nonadiabatic regime. The Coulomb blockade effect results in the modification of shot noise compared with the noninteracting case. The spin orientation contributes a spin valve effect for controlling electron tunnelling through this QD, and different resonant forms appear around the Coulomb blockade channel. The photon-assisted spin-splitting and spin-polarization effect contributes a photon-assisted spin valve to adjust the electron tunnelling current and shot noise. The spin-polarization effect varies the value of the Fano factor. However, it does not change the noise type from sub-Poissonian to super-Poissonian.-
dc.languageengen_US
dc.publisherSpringer. The Journal's web site is located at http://epjb.edpsciences.orgen_US
dc.relation.ispartofEuropean Physical Journal B. Condensed Matter and Complex Systemsen_US
dc.rightsThe original publication is available at www.springerlink.com-
dc.titleDynamic spin-polarized shot noise in a quantum dot coupled to ferromagnetic terminals under the perturbation of ac fieldsen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1434-6028&volume=77&issue=3&spage=441&epage=451&date=2010&atitle=Dynamic+spin-polarized+shot+noise+in+a+quantum+dot+coupled+to+ferromagnetic+terminals+under+the+perturbation+of+ac+fields-
dc.identifier.emailZhao, HK: zhaohonk@hku.hk, zhaohonk@yahoo.comen_US
dc.identifier.emailWang, J: jianwang@hkusub.hku.hken_US
dc.identifier.authorityWang, J=rp00799en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1140/epjb/e2010-00291-2-
dc.identifier.scopuseid_2-s2.0-78149286077-
dc.identifier.hkuros183464en_US
dc.identifier.volume77en_US
dc.identifier.issue3-
dc.identifier.spage441en_US
dc.identifier.epage451en_US
dc.identifier.isiWOS:000283586100017-
dc.relation.projectThe first principle study of local heating and heat transport in nano-devices-
dc.identifier.citeulike7966425-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats