Quantum size effect and temperature effect on spin-polarized transport in ZnSe/Zn1-xMnxSe multilayers

Yong Guo; Jun Qiang Lu; Zhong Zeng; Qian Wang; Bing Lin Gu; Yoshiyuki Kawazoe

doi:10.1016/S0375-9601(01)00285-7

Quantum size effect and temperature effect on spin-polarized transport in ZnSe/Zn_1-xMn_xSe multilayers

Yong Guo, Jun Qiang Lu, Zhong Zeng, Qian Wang, Bing Lin Gu, Yoshiyuki Kawazoe

New Industry Creation Hatchery Center (NICHe)

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

6 Citations (Scopus)

Abstract

We present tight-binding Green's function investigations of the influence of quantum sizes and the temperature on spin tunneling transport through a tunable ZnSe/Zn_1-xMn_xSe multilayers under an external electric field. It is found that the degree of polarization can be significantly induced by the size of the corresponding structure. As the size of the multilayers is increasing, both the transmission spectra and the current density spectra become more complicated and the degree of spin polarization is higher. It is also found that the degree of the spin polarization is drastically reduced as the temperature is increasing.

Original language	English
Pages (from-to)	205-215
Number of pages	11
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	284
Issue number	4-5
DOIs	https://doi.org/10.1016/S0375-9601(01)00285-7
Publication status	Published - 2001 Jun 11

Keywords

Heterojunctions
Semimagnetic semiconductor
Spin polarization
Tunneling

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1016/S0375-9601(01)00285-7

Cite this

@article{5e4e6915054a4a1f9f98cd7172cffaa4,

title = "Quantum size effect and temperature effect on spin-polarized transport in ZnSe/Zn1-xMnxSe multilayers",

abstract = "We present tight-binding Green's function investigations of the influence of quantum sizes and the temperature on spin tunneling transport through a tunable ZnSe/Zn1-xMnxSe multilayers under an external electric field. It is found that the degree of polarization can be significantly induced by the size of the corresponding structure. As the size of the multilayers is increasing, both the transmission spectra and the current density spectra become more complicated and the degree of spin polarization is higher. It is also found that the degree of the spin polarization is drastically reduced as the temperature is increasing.",

keywords = "Heterojunctions, Semimagnetic semiconductor, Spin polarization, Tunneling",

author = "Yong Guo and Lu, {Jun Qiang} and Zhong Zeng and Qian Wang and Gu, {Bing Lin} and Yoshiyuki Kawazoe",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (grant No. 10004006) and by the National Key Project of Basic Research Development Plan (grant No. 2000067107). Three of us (Y.G., J.-Q.L., and B.-L.G.) gratefully acknowledge the cooperation with the Institute for Materials Research, Tohoku University, Japan.",

year = "2001",

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doi = "10.1016/S0375-9601(01)00285-7",

language = "English",

volume = "284",

pages = "205--215",

journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

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publisher = "Elsevier",

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TY - JOUR

T1 - Quantum size effect and temperature effect on spin-polarized transport in ZnSe/Zn1-xMnxSe multilayers

AU - Guo, Yong

AU - Lu, Jun Qiang

AU - Zeng, Zhong

AU - Wang, Qian

AU - Gu, Bing Lin

AU - Kawazoe, Yoshiyuki

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (grant No. 10004006) and by the National Key Project of Basic Research Development Plan (grant No. 2000067107). Three of us (Y.G., J.-Q.L., and B.-L.G.) gratefully acknowledge the cooperation with the Institute for Materials Research, Tohoku University, Japan.

PY - 2001/6/11

Y1 - 2001/6/11

N2 - We present tight-binding Green's function investigations of the influence of quantum sizes and the temperature on spin tunneling transport through a tunable ZnSe/Zn1-xMnxSe multilayers under an external electric field. It is found that the degree of polarization can be significantly induced by the size of the corresponding structure. As the size of the multilayers is increasing, both the transmission spectra and the current density spectra become more complicated and the degree of spin polarization is higher. It is also found that the degree of the spin polarization is drastically reduced as the temperature is increasing.

AB - We present tight-binding Green's function investigations of the influence of quantum sizes and the temperature on spin tunneling transport through a tunable ZnSe/Zn1-xMnxSe multilayers under an external electric field. It is found that the degree of polarization can be significantly induced by the size of the corresponding structure. As the size of the multilayers is increasing, both the transmission spectra and the current density spectra become more complicated and the degree of spin polarization is higher. It is also found that the degree of the spin polarization is drastically reduced as the temperature is increasing.

KW - Heterojunctions

KW - Semimagnetic semiconductor

KW - Spin polarization

KW - Tunneling

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