Measurement of the Induced Magnetic Polarisation of Rotated-Domain Graphene Grown on Co Film with Polarised Neutron Reflectivity

Razan Omar M. Aboljadayel; Christy John Kinane; Carlos Antonio Fernandes Vaz; David Michael Love; Marie Blandine Martin; Andrea Cabrero-Vilatela; Philipp Braeuninger-Weimer; Adrian Ionescu; Andrew John Caruana; Timothy Randall Charlton; Justin Llandro; Pedro Manuel da Silva Monteiro; Crispin Henry William Barnes; Stephan Hofmann; Sean Langridge

doi:10.3390/nano13192620

Measurement of the Induced Magnetic Polarisation of Rotated-Domain Graphene Grown on Co Film with Polarised Neutron Reflectivity

Razan Omar M. Aboljadayel, Christy John Kinane, Carlos Antonio Fernandes Vaz, David Michael Love, Marie Blandine Martin, Andrea Cabrero-Vilatela, Philipp Braeuninger-Weimer, Adrian Ionescu, Andrew John Caruana, Timothy Randall Charlton, Justin Llandro, Pedro Manuel da Silva Monteiro, Crispin Henry William Barnes, Stephan Hofmann, Sean Langridge

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

Abstract

In this paper, we determine the magnetic moment induced in graphene when grown on a cobalt film using polarised neutron reflectivity (PNR). A magnetic signal in the graphene was detected by X-ray magnetic circular dichroism (XMCD) spectra at the C K-edge. From the XMCD sum rules an estimated magnetic moment of 0.3 (Formula presented.) _B/C atom, while a more accurate estimation of 0.49 (Formula presented.) _B/C atom was obtained by carrying out a PNR measurement at 300 K. The results indicate that the higher magnetic moment in Co is counterbalanced by the larger lattice mismatch between the Co-C (1.6%) and the slightly longer bond length, inducing a magnetic moment in graphene that is similar to that reported in Ni/graphene heterostructures.

Original language	English
Article number	2620
Journal	Nanomaterials
Volume	13
Issue number	19
DOIs	https://doi.org/10.3390/nano13192620
State	Published - Oct 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 by the authors.

Keywords

PNR
XMCD
graphene
heterostructures
magnetism

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10.3390/nano13192620

Cite this

Aboljadayel, R. O. M., Kinane, C. J., Vaz, C. A. F., Love, D. M., Martin, M. B., Cabrero-Vilatela, A., Braeuninger-Weimer, P., Ionescu, A., Caruana, A. J., Charlton, T. R., Llandro, J., Monteiro, P. M. D. S., Barnes, C. H. W., Hofmann, S., & Langridge, S. (2023). Measurement of the Induced Magnetic Polarisation of Rotated-Domain Graphene Grown on Co Film with Polarised Neutron Reflectivity. Nanomaterials, 13(19), Article 2620. https://doi.org/10.3390/nano13192620

@article{25b34829166f4c41b0a12c853509c059,

title = "Measurement of the Induced Magnetic Polarisation of Rotated-Domain Graphene Grown on Co Film with Polarised Neutron Reflectivity",

abstract = "In this paper, we determine the magnetic moment induced in graphene when grown on a cobalt film using polarised neutron reflectivity (PNR). A magnetic signal in the graphene was detected by X-ray magnetic circular dichroism (XMCD) spectra at the C K-edge. From the XMCD sum rules an estimated magnetic moment of 0.3 (Formula presented.) B/C atom, while a more accurate estimation of 0.49 (Formula presented.) B/C atom was obtained by carrying out a PNR measurement at 300 K. The results indicate that the higher magnetic moment in Co is counterbalanced by the larger lattice mismatch between the Co-C (1.6%) and the slightly longer bond length, inducing a magnetic moment in graphene that is similar to that reported in Ni/graphene heterostructures.",

keywords = "PNR, XMCD, graphene, heterostructures, magnetism",

author = "Aboljadayel, {Razan Omar M.} and Kinane, {Christy John} and Vaz, {Carlos Antonio Fernandes} and Love, {David Michael} and Martin, {Marie Blandine} and Andrea Cabrero-Vilatela and Philipp Braeuninger-Weimer and Adrian Ionescu and Caruana, {Andrew John} and Charlton, {Timothy Randall} and Justin Llandro and Monteiro, {Pedro Manuel da Silva} and Barnes, {Crispin Henry William} and Stephan Hofmann and Sean Langridge",

note = "Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2023",

month = oct,

doi = "10.3390/nano13192620",

language = "English",

volume = "13",

journal = "Nanomaterials",

issn = "2079-4991",

publisher = "MDPI",

number = "19",

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Aboljadayel, ROM, Kinane, CJ, Vaz, CAF, Love, DM, Martin, MB, Cabrero-Vilatela, A, Braeuninger-Weimer, P, Ionescu, A, Caruana, AJ, Charlton, TR, Llandro, J, Monteiro, PMDS, Barnes, CHW, Hofmann, S & Langridge, S 2023, 'Measurement of the Induced Magnetic Polarisation of Rotated-Domain Graphene Grown on Co Film with Polarised Neutron Reflectivity', Nanomaterials, vol. 13, no. 19, 2620. https://doi.org/10.3390/nano13192620

TY - JOUR

T1 - Measurement of the Induced Magnetic Polarisation of Rotated-Domain Graphene Grown on Co Film with Polarised Neutron Reflectivity

AU - Aboljadayel, Razan Omar M.

AU - Kinane, Christy John

AU - Vaz, Carlos Antonio Fernandes

AU - Love, David Michael

AU - Martin, Marie Blandine

AU - Cabrero-Vilatela, Andrea

AU - Braeuninger-Weimer, Philipp

AU - Ionescu, Adrian

AU - Caruana, Andrew John

AU - Charlton, Timothy Randall

AU - Llandro, Justin

AU - Monteiro, Pedro Manuel da Silva

AU - Barnes, Crispin Henry William

AU - Hofmann, Stephan

AU - Langridge, Sean

PY - 2023/10

Y1 - 2023/10

N2 - In this paper, we determine the magnetic moment induced in graphene when grown on a cobalt film using polarised neutron reflectivity (PNR). A magnetic signal in the graphene was detected by X-ray magnetic circular dichroism (XMCD) spectra at the C K-edge. From the XMCD sum rules an estimated magnetic moment of 0.3 (Formula presented.) B/C atom, while a more accurate estimation of 0.49 (Formula presented.) B/C atom was obtained by carrying out a PNR measurement at 300 K. The results indicate that the higher magnetic moment in Co is counterbalanced by the larger lattice mismatch between the Co-C (1.6%) and the slightly longer bond length, inducing a magnetic moment in graphene that is similar to that reported in Ni/graphene heterostructures.

AB - In this paper, we determine the magnetic moment induced in graphene when grown on a cobalt film using polarised neutron reflectivity (PNR). A magnetic signal in the graphene was detected by X-ray magnetic circular dichroism (XMCD) spectra at the C K-edge. From the XMCD sum rules an estimated magnetic moment of 0.3 (Formula presented.) B/C atom, while a more accurate estimation of 0.49 (Formula presented.) B/C atom was obtained by carrying out a PNR measurement at 300 K. The results indicate that the higher magnetic moment in Co is counterbalanced by the larger lattice mismatch between the Co-C (1.6%) and the slightly longer bond length, inducing a magnetic moment in graphene that is similar to that reported in Ni/graphene heterostructures.

KW - PNR

KW - XMCD

KW - graphene

KW - heterostructures

KW - magnetism

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U2 - 10.3390/nano13192620

DO - 10.3390/nano13192620

M3 - Article

AN - SCOPUS:85173822936

SN - 2079-4991

VL - 13

JO - Nanomaterials

JF - Nanomaterials

IS - 19

M1 - 2620

ER -

Measurement of the Induced Magnetic Polarisation of Rotated-Domain Graphene Grown on Co Film with Polarised Neutron Reflectivity

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Keywords

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