THE STUDY OF SPIN POLARIZED TRANSPORT IN A NONOCRYSTAL: THE EFFECTS OF ELECTRICAL AND MAGNETIC FIELDS

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AEENEHVAND F.; KORDBACHEH A.A.

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Journal: JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY) Year:2010 | Volume:20 | Issue:75 (PHYSICS ISSUE) Page(s): 1-10

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Title

THE STUDY OF SPIN POLARIZED TRANSPORT IN A NONOCRYSTAL: THE EFFECTS OF ELECTRICAL AND MAGNETIC FIELDS

Author(s)

AEENEHVAND F. | KORDBACHEH A.A. | Issue Writer Certificate

Keywords

SPIN POLARIZED TRANSPORTQ3

NANOCRYSTALQ3

MAGNETIC FIELDQ3

ELECTRICAL FIELDQ3

LANDUER FORMALISMQ3

GREEN'S FUNCTIONQ3

Abstract

Introduction: Experimental and theoretical studies of electrical conductance through magnetic nanostructures have extensively attracted much interest during the last years. Spin dependent transport phenomena in magnetic nanostructures such as magnetic quantum wire have received more attention from both scientific and technological view. The transport properties of magnetic quantum wire can be measured by coupling it to leads and passing current through the set up. In the present work we study spin dependent transport in a magnetic NANOCRYSTAL connected between two three dimensional metal leads.Aim: The study of SPIN POLARIZED TRANSPORT in a NANOCRYSTAL with magnetic layers in the presence of electrical and MAGNETIC FIELDs due to LANDUER FORMALISM.Materials and Methods: In this paper, the SPIN POLARIZED TRANSPORT in a three dimensional quantum wire with magnetic layers attached to two metal three dimensional electrodes has been investigated in the tight-binding approach and assuming nearest –neighbor interaction by GREEN'S FUNCTION method and LANDUER FORMALISM.Results: The transport of up & down spin to be accomplished in the separate channels, electrons with spin down have less share in the transport and the transport amplitude will be decreased by means of ELECTRICAL FIELD.Conclusion: some different possible results because of its directly effect on magnetic layers make strengthen the essence of reviewing in the presence or absence of external MAGNETIC FIELD. The magnetic layers couple ferromagnetically in an external MAGNETIC FIELD but couple antiferromagnetically in the absence of the MAGNETIC FIELD. Also the in – plane ELECTRICAL FIELD suppresses the transport amplitude and it has been predicted that the SPIN POLARIZED TRANSPORT amplitude can be controlled externally through this system by means of this electric field.

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APA: Copy

AEENEHVAND, F., & KORDBACHEH, A.A.. (2010). THE STUDY OF SPIN POLARIZED TRANSPORT IN A NONOCRYSTAL: THE EFFECTS OF ELECTRICAL AND MAGNETIC FIELDS. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), 20(75 (PHYSICS ISSUE)), 1-10. SID. https://sid.ir/paper/70514/en

Vancouver: Copy

AEENEHVAND F., KORDBACHEH A.A.. THE STUDY OF SPIN POLARIZED TRANSPORT IN A NONOCRYSTAL: THE EFFECTS OF ELECTRICAL AND MAGNETIC FIELDS. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)[Internet]. 2010;20(75 (PHYSICS ISSUE)):1-10. Available from: https://sid.ir/paper/70514/en

IEEE: Copy

F. AEENEHVAND, and A.A. KORDBACHEH, “THE STUDY OF SPIN POLARIZED TRANSPORT IN A NONOCRYSTAL: THE EFFECTS OF ELECTRICAL AND MAGNETIC FIELDS,” JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), vol. 20, no. 75 (PHYSICS ISSUE), pp. 1–10, 2010, [Online]. Available: https://sid.ir/paper/70514/en

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