Thickness-dependent SOT effective fields and magnetization control in Topological insulator/2D-ferromagnet Bi2Te3/Cr1+δTe2 Van der Waals heterostructures with PMA

Nicholas Figueiredo-Prestes; Akylas Lintzeris; Polychronis Tsipas; Nicolas Reyren; Henri Jaffrés; Athanasios Dimoulas; Jean Marie George

doi:10.1109/INTERMAGShortPapers58606.2023.10228725

Thickness-dependent SOT effective fields and magnetization control in Topological insulator/2D-ferromagnet Bi₂Te₃/Cr_1+δTe₂ Van der Waals heterostructures with PMA

Nicholas Figueiredo-Prestes, Akylas Lintzeris, Polychronis Tsipas, Nicolas Reyren, Henri Jaffrés, Athanasios Dimoulas, Jean Marie George

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Second harmonic Spin-Orbit Torques (SOT) evaluation has been used to quantify amplitudes of Field-like (FL) and Damping-like (DL) in Bi₂Te₃/Cr_1+δTe₂ Van der Waals (VdH) heterostructures grown by Molecular Beam Epitaxy (MBE). Although the FL effective field was found to be larger than the DL component, as expected for interfacial mechanisms for SOT generation, the FL/DL torque-ratio exhibits a non-monotonic dependency on the thickness of the ferromagnet layer. At 10 repetitions of the CrTe₂ VdH trilayer, the ratio displays its maximum value with the FL field being about 100 times larger than DL field. The amplitudes of DL field are on par with values for Spin-Hall materials. We also report current-induced magnetization reversal in Bi₂Te₃/Cr_1+δTe₂ with perpendicular magnetic anisotropy (PMA).

Original language	English
Title of host publication	2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798350338362
DOIs	https://doi.org/10.1109/INTERMAGShortPapers58606.2023.10228725
Publication status	Published - 1 Jan 2023
Externally published	Yes
Event	2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Sendai, Japan Duration: 15 May 2023 → 19 May 2023

Publication series

Name	2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings

Conference

Conference	2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023
Country/Territory	Japan
City	Sendai
Period	15/05/23 → 19/05/23

Keywords

Magnetization Reversal
Second Harmonic Techniques
Spin-Orbit Torques
Spintronics

Access to Document

10.1109/INTERMAGShortPapers58606.2023.10228725

Cite this

Figueiredo-Prestes, N., Lintzeris, A., Tsipas, P., Reyren, N., Jaffrés, H., Dimoulas, A., & George, J. M. (2023). Thickness-dependent SOT effective fields and magnetization control in Topological insulator/2D-ferromagnet Bi₂Te₃/Cr_1+δTe₂ Van der Waals heterostructures with PMA. In 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings (2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTERMAGShortPapers58606.2023.10228725

Figueiredo-Prestes, Nicholas ; Lintzeris, Akylas ; Tsipas, Polychronis et al. / Thickness-dependent SOT effective fields and magnetization control in Topological insulator/2D-ferromagnet Bi₂Te₃/Cr_1+δTe₂ Van der Waals heterostructures with PMA. 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. (2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings).

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title = "Thickness-dependent SOT effective fields and magnetization control in Topological insulator/2D-ferromagnet Bi2Te3/Cr1+δTe2 Van der Waals heterostructures with PMA",

abstract = "Second harmonic Spin-Orbit Torques (SOT) evaluation has been used to quantify amplitudes of Field-like (FL) and Damping-like (DL) in Bi2Te3/Cr1+δTe2 Van der Waals (VdH) heterostructures grown by Molecular Beam Epitaxy (MBE). Although the FL effective field was found to be larger than the DL component, as expected for interfacial mechanisms for SOT generation, the FL/DL torque-ratio exhibits a non-monotonic dependency on the thickness of the ferromagnet layer. At 10 repetitions of the CrTe2 VdH trilayer, the ratio displays its maximum value with the FL field being about 100 times larger than DL field. The amplitudes of DL field are on par with values for Spin-Hall materials. We also report current-induced magnetization reversal in Bi2Te3/Cr1+δTe2 with perpendicular magnetic anisotropy (PMA).",

keywords = "Magnetization Reversal, Second Harmonic Techniques, Spin-Orbit Torques, Spintronics",

author = "Nicholas Figueiredo-Prestes and Akylas Lintzeris and Polychronis Tsipas and Nicolas Reyren and Henri Jaffr{\'e}s and Athanasios Dimoulas and George, \{Jean Marie\}",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 ; Conference date: 15-05-2023 Through 19-05-2023",

year = "2023",

month = jan,

day = "1",

doi = "10.1109/INTERMAGShortPapers58606.2023.10228725",

language = "English",

series = "2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings",

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}

Figueiredo-Prestes, N, Lintzeris, A, Tsipas, P, Reyren, N, Jaffrés, H, Dimoulas, A & George, JM 2023, Thickness-dependent SOT effective fields and magnetization control in Topological insulator/2D-ferromagnet Bi₂Te₃/Cr_1+δTe₂ Van der Waals heterostructures with PMA. in 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings. 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings, Institute of Electrical and Electronics Engineers Inc., 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023, Sendai, Japan, 15/05/23. https://doi.org/10.1109/INTERMAGShortPapers58606.2023.10228725

Thickness-dependent SOT effective fields and magnetization control in Topological insulator/2D-ferromagnet Bi₂Te₃/Cr_1+δTe₂ Van der Waals heterostructures with PMA. / Figueiredo-Prestes, Nicholas; Lintzeris, Akylas; Tsipas, Polychronis et al.
2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. (2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Thickness-dependent SOT effective fields and magnetization control in Topological insulator/2D-ferromagnet Bi2Te3/Cr1+δTe2 Van der Waals heterostructures with PMA

AU - Figueiredo-Prestes, Nicholas

AU - Lintzeris, Akylas

AU - Tsipas, Polychronis

AU - Reyren, Nicolas

AU - Jaffrés, Henri

AU - Dimoulas, Athanasios

AU - George, Jean Marie

PY - 2023/1/1

Y1 - 2023/1/1

N2 - Second harmonic Spin-Orbit Torques (SOT) evaluation has been used to quantify amplitudes of Field-like (FL) and Damping-like (DL) in Bi2Te3/Cr1+δTe2 Van der Waals (VdH) heterostructures grown by Molecular Beam Epitaxy (MBE). Although the FL effective field was found to be larger than the DL component, as expected for interfacial mechanisms for SOT generation, the FL/DL torque-ratio exhibits a non-monotonic dependency on the thickness of the ferromagnet layer. At 10 repetitions of the CrTe2 VdH trilayer, the ratio displays its maximum value with the FL field being about 100 times larger than DL field. The amplitudes of DL field are on par with values for Spin-Hall materials. We also report current-induced magnetization reversal in Bi2Te3/Cr1+δTe2 with perpendicular magnetic anisotropy (PMA).

AB - Second harmonic Spin-Orbit Torques (SOT) evaluation has been used to quantify amplitudes of Field-like (FL) and Damping-like (DL) in Bi2Te3/Cr1+δTe2 Van der Waals (VdH) heterostructures grown by Molecular Beam Epitaxy (MBE). Although the FL effective field was found to be larger than the DL component, as expected for interfacial mechanisms for SOT generation, the FL/DL torque-ratio exhibits a non-monotonic dependency on the thickness of the ferromagnet layer. At 10 repetitions of the CrTe2 VdH trilayer, the ratio displays its maximum value with the FL field being about 100 times larger than DL field. The amplitudes of DL field are on par with values for Spin-Hall materials. We also report current-induced magnetization reversal in Bi2Te3/Cr1+δTe2 with perpendicular magnetic anisotropy (PMA).

KW - Magnetization Reversal

KW - Second Harmonic Techniques

KW - Spin-Orbit Torques

KW - Spintronics

U2 - 10.1109/INTERMAGShortPapers58606.2023.10228725

DO - 10.1109/INTERMAGShortPapers58606.2023.10228725

M3 - Conference contribution

AN - SCOPUS:85172728617

T3 - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings

BT - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023

Y2 - 15 May 2023 through 19 May 2023

ER -

Figueiredo-Prestes N, Lintzeris A, Tsipas P, Reyren N, Jaffrés H, Dimoulas A et al. Thickness-dependent SOT effective fields and magnetization control in Topological insulator/2D-ferromagnet Bi₂Te₃/Cr_1+δTe₂ Van der Waals heterostructures with PMA. In 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2023. (2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings). doi: 10.1109/INTERMAGShortPapers58606.2023.10228725