Size effect on single pulse all-optical helicity-independent switching in GdFeCo disk arrays

Danny Petty Gweha Nyoma; Maxime Vergès; Michel Hehn; Daniel Lacour; Julius Hohlfeld; Sebastiaan van Dijken; Grégory Malinowski; Stéphane Mangin; François Montaigne

doi:10.1063/5.0150250

Size effect on single pulse all-optical helicity-independent switching in GdFeCo disk arrays

Danny Petty Gweha Nyoma
, Maxime Vergès
, Michel Hehn
, Daniel Lacour
, Julius Hohlfeld
, Sebastiaan van Dijken
, Grégory Malinowski
, Stéphane Mangin
, François Montaigne^*

^*Tämän työn vastaava kirjoittaja

Université de Lorraine

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

68 Lataukset (Pure)

Abstrakti

We experimentally demonstrate single pulse toggle switching of the magnetization of GdFeCo disks with perpendicular to film plane anisotropy, which diameter ranges from 3 μm to 400 nm using 35 fs linearly polarized laser pulses. Two different magnetic states can be observed depending on the laser fluence: either a deterministic switching of the disk magnetization or a randomly oriented disk. We report that the fluence required to observe both magnetic states show a non-monotonic behavior with disk diameter and that the smallest disks require the lowest minimum fluence for achieving single pulse all-optical helicity-independent switching. Different evolution of the fluence thresholds for both phenomenon as a function of the disk size is observed and discussed.

Alkuperäiskieli	Englanti
Artikkeli	052405
Julkaisu	Applied Physics Letters
Vuosikerta	123
Numero	5
DOI - pysyväislinkit	https://doi.org/10.1063/5.0150250
Tila	Julkaistu - 31 heinäk. 2023
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

This work was supported partly by the French PIA project “Lorraine Université d'Excellence” (No. ANR-15-IDEX-04-LUE) and by the “FEDER-FSE Lorraine et Massif Vosges 2014–2020,” a European Union Program (RaNGE project). This work was supported by the No. ANR-20-CE09-0013 UFO, by the Institute Carnot ICEEL for the project “CAPMAT” and FASTNESS, by the Région Grand Est, by the Metropole Grand Nancy, for the Chaire PLUS by the European Union's Horizon 2020 research and innovation program COMRAD under the Marie Skłodowska-Curie Grant Agreement No. 861300, and by the Academy of Finland (Grant No. 316857). This article is based upon work from COST Action CA17123 MAGNETOFON, supported by COST (European Cooperation in Science and Technology). Devices in the present study were patterned at MiNaLor clean-room platform, which is partially supported by FEDER and Grand Est Region through the RaNGE project.

Pääsy asiakirjaan

10.1063/5.0150250

Size effect on single pulse all-optical helicity-independent switching in GdFeCo disk arraysFinal published version, 2,51 MB

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Linkki julkaisuun Scopuksessa

Sähköisten, magneettisten ja plasmonisten nanomateriaalien ioninen ohjaus
van Dijken, S. (Vastuullinen johtaja), Farhan, A. (Projektin jäsen), Simojoki, H. (Projektin jäsen), Perumbilavil, S. (Projektin jäsen), Hagnäs, R. (Projektin jäsen), Lepikko, S. (Projektin jäsen) & Freire Fernandez, F. (Projektin jäsen)
01/09/2018 → 31/08/2022
Projekti: Academy of Finland: Other research funding

Siteeraa tätä

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title = "Size effect on single pulse all-optical helicity-independent switching in GdFeCo disk arrays",

abstract = "We experimentally demonstrate single pulse toggle switching of the magnetization of GdFeCo disks with perpendicular to film plane anisotropy, which diameter ranges from 3 μm to 400 nm using 35 fs linearly polarized laser pulses. Two different magnetic states can be observed depending on the laser fluence: either a deterministic switching of the disk magnetization or a randomly oriented disk. We report that the fluence required to observe both magnetic states show a non-monotonic behavior with disk diameter and that the smallest disks require the lowest minimum fluence for achieving single pulse all-optical helicity-independent switching. Different evolution of the fluence thresholds for both phenomenon as a function of the disk size is observed and discussed.",

author = "\{Gweha Nyoma\}, \{Danny Petty\} and Maxime Verg{\`e}s and Michel Hehn and Daniel Lacour and Julius Hohlfeld and \{van Dijken\}, Sebastiaan and Gr{\'e}gory Malinowski and St{\'e}phane Mangin and Fran{\c c}ois Montaigne",

note = "Funding Information: This work was supported partly by the French PIA project “Lorraine Universit{\'e} d'Excellence” (No. ANR-15-IDEX-04-LUE) and by the “FEDER-FSE Lorraine et Massif Vosges 2014–2020,” a European Union Program (RaNGE project). This work was supported by the No. ANR-20-CE09-0013 UFO, by the Institute Carnot ICEEL for the project “CAPMAT” and FASTNESS, by the R{\'e}gion Grand Est, by the Metropole Grand Nancy, for the Chaire PLUS by the European Union's Horizon 2020 research and innovation program COMRAD under the Marie Sk{\l}odowska-Curie Grant Agreement No. 861300, and by the Academy of Finland (Grant No. 316857). This article is based upon work from COST Action CA17123 MAGNETOFON, supported by COST (European Cooperation in Science and Technology). Devices in the present study were patterned at MiNaLor clean-room platform, which is partially supported by FEDER and Grand Est Region through the RaNGE project. Publisher Copyright: {\textcopyright} 2023 Author(s).",

year = "2023",

month = jul,

day = "31",

doi = "10.1063/5.0150250",

language = "English",

volume = "123",

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TY - JOUR

T1 - Size effect on single pulse all-optical helicity-independent switching in GdFeCo disk arrays

AU - Gweha Nyoma, Danny Petty

AU - Vergès, Maxime

AU - Hehn, Michel

AU - Lacour, Daniel

AU - Hohlfeld, Julius

AU - van Dijken, Sebastiaan

AU - Malinowski, Grégory

AU - Mangin, Stéphane

AU - Montaigne, François

N1 - Funding Information: This work was supported partly by the French PIA project “Lorraine Université d'Excellence” (No. ANR-15-IDEX-04-LUE) and by the “FEDER-FSE Lorraine et Massif Vosges 2014–2020,” a European Union Program (RaNGE project). This work was supported by the No. ANR-20-CE09-0013 UFO, by the Institute Carnot ICEEL for the project “CAPMAT” and FASTNESS, by the Région Grand Est, by the Metropole Grand Nancy, for the Chaire PLUS by the European Union's Horizon 2020 research and innovation program COMRAD under the Marie Skłodowska-Curie Grant Agreement No. 861300, and by the Academy of Finland (Grant No. 316857). This article is based upon work from COST Action CA17123 MAGNETOFON, supported by COST (European Cooperation in Science and Technology). Devices in the present study were patterned at MiNaLor clean-room platform, which is partially supported by FEDER and Grand Est Region through the RaNGE project. Publisher Copyright: © 2023 Author(s).

PY - 2023/7/31

Y1 - 2023/7/31

N2 - We experimentally demonstrate single pulse toggle switching of the magnetization of GdFeCo disks with perpendicular to film plane anisotropy, which diameter ranges from 3 μm to 400 nm using 35 fs linearly polarized laser pulses. Two different magnetic states can be observed depending on the laser fluence: either a deterministic switching of the disk magnetization or a randomly oriented disk. We report that the fluence required to observe both magnetic states show a non-monotonic behavior with disk diameter and that the smallest disks require the lowest minimum fluence for achieving single pulse all-optical helicity-independent switching. Different evolution of the fluence thresholds for both phenomenon as a function of the disk size is observed and discussed.

AB - We experimentally demonstrate single pulse toggle switching of the magnetization of GdFeCo disks with perpendicular to film plane anisotropy, which diameter ranges from 3 μm to 400 nm using 35 fs linearly polarized laser pulses. Two different magnetic states can be observed depending on the laser fluence: either a deterministic switching of the disk magnetization or a randomly oriented disk. We report that the fluence required to observe both magnetic states show a non-monotonic behavior with disk diameter and that the smallest disks require the lowest minimum fluence for achieving single pulse all-optical helicity-independent switching. Different evolution of the fluence thresholds for both phenomenon as a function of the disk size is observed and discussed.

UR - https://www.scopus.com/pages/publications/85166911005

U2 - 10.1063/5.0150250

DO - 10.1063/5.0150250

M3 - Article

AN - SCOPUS:85166911005

SN - 0003-6951

VL - 123

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 5

M1 - 052405

ER -

Size effect on single pulse all-optical helicity-independent switching in GdFeCo disk arrays

Abstrakti

Rahoitus

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Sormenjälki

Projektit

Sähköisten, magneettisten ja plasmonisten nanomateriaalien ioninen ohjaus

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