Magnetic Properties of bcc-Fe(001)/C60 Interfaces for Organic Spintronics

T. Lan Ahn Tran; Deniz Cakir; P.K.J. Wong; A.B. Preobrajenski; Gerardus H.L.A. Brocks; Wilfred Gerard van der Wiel; Machiel Pieter de Jong

doi:10.1021/am3024367

Magnetic Properties of bcc-Fe(001)/C₆₀ Interfaces for Organic Spintronics

T. Lan Ahn Tran, Deniz Cakir, P.K.J. Wong, A.B. Preobrajenski, Gerardus H.L.A. Brocks, Wilfred Gerard van der Wiel, Machiel Pieter de Jong

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

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Abstract

The magnetic structure of the interfaces between organic semiconductors and ferromagnetic contacts plays a key role in the spin injection and extraction processes in organic spintronic devices. We present a combined computational (density functional theory) and experimental (X-ray magnetic circular dichroism) study on the magnetic properties of interfaces between bcc-Fe(001) and C-60 molecules. C-60 is an interesting candidate for application in organic spintronics due to the absence of hydrogen atoms and the associated hyperfine fields. Adsorption of C-60 on Fe(001) reduces the magnetic moments on the top Fe layers by similar to 6%, while inducing an antiparrallel magnetic moment of similar to-0.2 mu(B) on C-60. Adsorption of C-60 on a model ferromagnetic substrate consisting of three Fe monolayers on W(001) leads to a different structure but to very similar interface magnetic properties.

Original language	Undefined
Pages (from-to)	837-841
Number of pages	5
Journal	ACS applied materials & interfaces
Volume	5
Issue number	3
DOIs	https://doi.org/10.1021/am3024367
Publication status	Published - 10 Jan 2013

Keywords

EWI-24405
IR-89201
METIS-298629

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10.1021/am3024367

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Cite this

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title = "Magnetic Properties of bcc-Fe(001)/C60 Interfaces for Organic Spintronics",

abstract = "The magnetic structure of the interfaces between organic semiconductors and ferromagnetic contacts plays a key role in the spin injection and extraction processes in organic spintronic devices. We present a combined computational (density functional theory) and experimental (X-ray magnetic circular dichroism) study on the magnetic properties of interfaces between bcc-Fe(001) and C-60 molecules. C-60 is an interesting candidate for application in organic spintronics due to the absence of hydrogen atoms and the associated hyperfine fields. Adsorption of C-60 on Fe(001) reduces the magnetic moments on the top Fe layers by similar to 6%, while inducing an antiparrallel magnetic moment of similar to-0.2 mu(B) on C-60. Adsorption of C-60 on a model ferromagnetic substrate consisting of three Fe monolayers on W(001) leads to a different structure but to very similar interface magnetic properties.",

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author = "Tran, {T. Lan Ahn} and Deniz Cakir and P.K.J. Wong and A.B. Preobrajenski and Brocks, {Gerardus H.L.A.} and {van der Wiel}, {Wilfred Gerard} and {de Jong}, {Machiel Pieter}",

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doi = "10.1021/am3024367",

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TY - JOUR

T1 - Magnetic Properties of bcc-Fe(001)/C60 Interfaces for Organic Spintronics

AU - Tran, T. Lan Ahn

AU - Cakir, Deniz

AU - Wong, P.K.J.

AU - Preobrajenski, A.B.

AU - Brocks, Gerardus H.L.A.

AU - van der Wiel, Wilfred Gerard

AU - de Jong, Machiel Pieter

PY - 2013/1/10

Y1 - 2013/1/10

N2 - The magnetic structure of the interfaces between organic semiconductors and ferromagnetic contacts plays a key role in the spin injection and extraction processes in organic spintronic devices. We present a combined computational (density functional theory) and experimental (X-ray magnetic circular dichroism) study on the magnetic properties of interfaces between bcc-Fe(001) and C-60 molecules. C-60 is an interesting candidate for application in organic spintronics due to the absence of hydrogen atoms and the associated hyperfine fields. Adsorption of C-60 on Fe(001) reduces the magnetic moments on the top Fe layers by similar to 6%, while inducing an antiparrallel magnetic moment of similar to-0.2 mu(B) on C-60. Adsorption of C-60 on a model ferromagnetic substrate consisting of three Fe monolayers on W(001) leads to a different structure but to very similar interface magnetic properties.

AB - The magnetic structure of the interfaces between organic semiconductors and ferromagnetic contacts plays a key role in the spin injection and extraction processes in organic spintronic devices. We present a combined computational (density functional theory) and experimental (X-ray magnetic circular dichroism) study on the magnetic properties of interfaces between bcc-Fe(001) and C-60 molecules. C-60 is an interesting candidate for application in organic spintronics due to the absence of hydrogen atoms and the associated hyperfine fields. Adsorption of C-60 on Fe(001) reduces the magnetic moments on the top Fe layers by similar to 6%, while inducing an antiparrallel magnetic moment of similar to-0.2 mu(B) on C-60. Adsorption of C-60 on a model ferromagnetic substrate consisting of three Fe monolayers on W(001) leads to a different structure but to very similar interface magnetic properties.

KW - EWI-24405

KW - IR-89201

KW - METIS-298629

U2 - 10.1021/am3024367

DO - 10.1021/am3024367

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