Anomalous magnetism in epitaxial Mn2RuxGa thin films

Gwenaël Atcheson; Jack O’Brien; Aaron Naden; Katarzyna Siewierska; J. M. D. Coey; Karsten Rode; Plamen Stamenov

doi:10.1109/intermagshortpapers58606.2023.10228845

Anomalous magnetism in epitaxial Mn₂Ru_xGa thin films

Gwenaël Atcheson, Jack O’Brien, Aaron Naden, Katarzyna Siewierska, J. M. D. Coey, Karsten Rode, Plamen Stamenov

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

Abstract

Thin films of Mn₂Ru_xGa grown by sputtering at low temperature, T_sub = 225^◦C, are nearly defect free and have in-plane grain size exceeding 180 nm. A higher T sub of 425^◦C leads to an increased density of defects and reduced in-plane coherence. The near-perfect films grown at low temperature exhibit a pinched wasp-waist magnetic hysteresis that is a consequence of the frustration induced by exchange interaction and site-specific anisotropy. At higher temperatures, the long-range crystalline order is broken by the presence of defects and simpler square hysteresis loops are recovered.

Original language	English
Title of host publication	22023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)
Publisher	IEEE
ISBN (Print)	9798350338362
DOIs	https://doi.org/10.1109/intermagshortpapers58606.2023.10228845
Publication status	Published - 4 Sept 2023
Event	2023 IEEE Intermag Conference - Sendai International Center, Sendai, Japan Duration: 15 May 2023 → 19 May 2023 https://2023.intermag.org/

Publication series

Name	2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)
Publisher	IEEE

Conference

Conference	2023 IEEE Intermag Conference
Country/Territory	Japan
City	Sendai
Period	15/05/23 → 19/05/23
Internet address	https://2023.intermag.org/

Access to Document

10.1109/intermagshortpapers58606.2023.10228845

Light Element Analysis Facility (LEAF): Light Element Analysis Facility (LEAF)
Irvine, J. T. S. (PI), Baker, R. (CoI) & Miller, D. N. (CoI)
EPSRC
5/04/20 → 4/04/23
Project: Standard
Electon Microscopy: Electon Microscopy for the characterisation and manipulation of advanced function materials and their interfaces at the nanoscale
Irvine, J. T. S. (PI), Baker, R. (CoI) & Zhou, W. (CoI)
EPSRC
1/04/18 → 2/09/20
Project: Standard
Equipment Account: Characterisation and Manipulation of Advanced Functional Materials and their Interfaces at the Nanoscale
Samuel, I. D. W. (PI)
EPSRC
1/10/13 → 30/09/23
Project: Standard

Cite this

Atcheson, G., O’Brien, J., Naden, A., Siewierska, K., Coey, J. M. D., Rode, K., & Stamenov, P. (2023). Anomalous magnetism in epitaxial Mn₂Ru_xGa thin films. In 22023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers) (2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)). IEEE. https://doi.org/10.1109/intermagshortpapers58606.2023.10228845

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title = "Anomalous magnetism in epitaxial Mn2RuxGa thin films",

abstract = "Thin films of Mn2RuxGa grown by sputtering at low temperature, Tsub = 225◦C, are nearly defect free and have in-plane grain size exceeding 180 nm. A higher T sub of 425◦C leads to an increased density of defects and reduced in-plane coherence. The near-perfect films grown at low temperature exhibit a pinched wasp-waist magnetic hysteresis that is a consequence of the frustration induced by exchange interaction and site-specific anisotropy. At higher temperatures, the long-range crystalline order is broken by the presence of defects and simpler square hysteresis loops are recovered.",

author = "Gwena{\"e}l Atcheson and Jack O{\textquoteright}Brien and Aaron Naden and Katarzyna Siewierska and Coey, {J. M. D.} and Karsten Rode and Plamen Stamenov",

year = "2023",

month = sep,

day = "4",

doi = "10.1109/intermagshortpapers58606.2023.10228845",

language = "English",

isbn = "9798350338362",

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

publisher = "IEEE",

booktitle = "22023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)",

note = "2023 IEEE Intermag Conference ; Conference date: 15-05-2023 Through 19-05-2023",

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Atcheson, G, O’Brien, J, Naden, A, Siewierska, K, Coey, JMD, Rode, K & Stamenov, P 2023, Anomalous magnetism in epitaxial Mn₂Ru_xGa thin films. in 22023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers). 2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers), IEEE, 2023 IEEE Intermag Conference , Sendai, Japan, 15/05/23. https://doi.org/10.1109/intermagshortpapers58606.2023.10228845

Anomalous magnetism in epitaxial Mn₂Ru_xGa thin films. / Atcheson, Gwenaël; O’Brien, Jack; Naden, Aaron et al.
22023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers). IEEE, 2023. (2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)).

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

TY - GEN

T1 - Anomalous magnetism in epitaxial Mn2RuxGa thin films

AU - Atcheson, Gwenaël

AU - O’Brien, Jack

AU - Naden, Aaron

AU - Siewierska, Katarzyna

AU - Coey, J. M. D.

AU - Rode, Karsten

AU - Stamenov, Plamen

PY - 2023/9/4

Y1 - 2023/9/4

N2 - Thin films of Mn2RuxGa grown by sputtering at low temperature, Tsub = 225◦C, are nearly defect free and have in-plane grain size exceeding 180 nm. A higher T sub of 425◦C leads to an increased density of defects and reduced in-plane coherence. The near-perfect films grown at low temperature exhibit a pinched wasp-waist magnetic hysteresis that is a consequence of the frustration induced by exchange interaction and site-specific anisotropy. At higher temperatures, the long-range crystalline order is broken by the presence of defects and simpler square hysteresis loops are recovered.

AB - Thin films of Mn2RuxGa grown by sputtering at low temperature, Tsub = 225◦C, are nearly defect free and have in-plane grain size exceeding 180 nm. A higher T sub of 425◦C leads to an increased density of defects and reduced in-plane coherence. The near-perfect films grown at low temperature exhibit a pinched wasp-waist magnetic hysteresis that is a consequence of the frustration induced by exchange interaction and site-specific anisotropy. At higher temperatures, the long-range crystalline order is broken by the presence of defects and simpler square hysteresis loops are recovered.

U2 - 10.1109/intermagshortpapers58606.2023.10228845

DO - 10.1109/intermagshortpapers58606.2023.10228845

M3 - Conference contribution

SN - 9798350338362

T3 - 2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)

BT - 22023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)

PB - IEEE

T2 - 2023 IEEE Intermag Conference

Y2 - 15 May 2023 through 19 May 2023

ER -

Anomalous magnetism in epitaxial Mn2RuxGa thin films

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Projects

Light Element Analysis Facility (LEAF): Light Element Analysis Facility (LEAF)

Electon Microscopy: Electon Microscopy for the characterisation and manipulation of advanced function materials and their interfaces at the nanoscale

Equipment Account: Characterisation and Manipulation of Advanced Functional Materials and their Interfaces at the Nanoscale

Cite this

Anomalous magnetism in epitaxial Mn₂Ru_xGa thin films