Spin Seebeck effect and large spin conversion in amorphous Fe2TiSb/polycrystalline Y3Fe5O12 thin films

Poramed Wongjom; Chalothon Wongjom; Ekkarat Pongophas; Yingyot Infahsaeng; Wasan Maiaugree; Mati Horprathum; Chanunthorn Chananonnawathorn; Supree Pinitsoontorn; Harihara Ramamoorthy; Ratchanok Somphonsane; Wanchai Pijitrojana; Thang Bach Phan; Sungkyun Park; Melania Suweni Muntini; Tosawat Seetawan; Athorn Vora-ud

doi:10.1016/j.tsf.2024.140363

Spin Seebeck effect and large spin conversion in amorphous Fe₂TiSb/polycrystalline Y₃Fe₅O₁₂ thin films

Poramed Wongjom, Chalothon Wongjom, Ekkarat Pongophas, Yingyot Infahsaeng, Wasan Maiaugree, Mati Horprathum, Chanunthorn Chananonnawathorn, Supree Pinitsoontorn, Harihara Ramamoorthy, Ratchanok Somphonsane, Wanchai Pijitrojana, Thang Bach Phan, Sungkyun Park, Melania Suweni Muntini, Tosawat Seetawan, Athorn Vora-ud^*

^*Corresponding author for this work

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

Abstract

This study investigates spin current generation in a Fe₂TiSb/Y₃Fe₅O₁₂ multi-layer thin film as prepared via the magnetron sputtering method. Comprehensive characterization techniques are employed to assess film properties, including X-ray diffraction, energy-dispersive X-ray spectroscopy, Scanning electron microscopy, and Vibrating sample magnetometer. The Y₃Fe₅O₁₂ material exhibits a polycrystalline ferromagnetic insulator behavior, while the 20 nm-thick Fe₂TiSb film displays small ferromagnetic metal properties with an amorphous structure. Spin current analysis utilizes the longitudinal spin Seebeck effect configuration, considering magnetic field and temperature dependencies and the results show that spin conversion within the Fe₂TiSb/Y₃Fe₅O₁₂ structure is influenced by both the spin Seebeck effect and the anomalous Nernst effect, resulting in an overall spin signal enhancement. The spin Seebeck coefficient of Fe₂TiSb/Y₃Fe₅O₁₂ was approximately 0.103 μV/K within a magnetic field of 300 mT.

Original language	English
Article number	140363
Journal	Thin Solid Films
Volume	797
DOIs	https://doi.org/10.1016/j.tsf.2024.140363
Publication status	Published - 30 May 2024

Keywords

Spin Seebeck effect
Thin films
Titanium-iron-antimony
Yttrium iron garnet

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10.1016/j.tsf.2024.140363

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Wongjom, P., Wongjom, C., Pongophas, E., Infahsaeng, Y., Maiaugree, W., Horprathum, M., Chananonnawathorn, C., Pinitsoontorn, S., Ramamoorthy, H., Somphonsane, R., Pijitrojana, W., Phan, T. B., Park, S., Muntini, M. S., Seetawan, T., & Vora-ud, A. (2024). Spin Seebeck effect and large spin conversion in amorphous Fe₂TiSb/polycrystalline Y₃Fe₅O₁₂ thin films. Thin Solid Films, 797, Article 140363. https://doi.org/10.1016/j.tsf.2024.140363

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title = "Spin Seebeck effect and large spin conversion in amorphous Fe2TiSb/polycrystalline Y3Fe5O12 thin films",

abstract = "This study investigates spin current generation in a Fe2TiSb/Y3Fe5O12 multi-layer thin film as prepared via the magnetron sputtering method. Comprehensive characterization techniques are employed to assess film properties, including X-ray diffraction, energy-dispersive X-ray spectroscopy, Scanning electron microscopy, and Vibrating sample magnetometer. The Y3Fe5O12 material exhibits a polycrystalline ferromagnetic insulator behavior, while the 20 nm-thick Fe2TiSb film displays small ferromagnetic metal properties with an amorphous structure. Spin current analysis utilizes the longitudinal spin Seebeck effect configuration, considering magnetic field and temperature dependencies and the results show that spin conversion within the Fe2TiSb/Y3Fe5O12 structure is influenced by both the spin Seebeck effect and the anomalous Nernst effect, resulting in an overall spin signal enhancement. The spin Seebeck coefficient of Fe2TiSb/Y3Fe5O12 was approximately 0.103 μV/K within a magnetic field of 300 mT.",

keywords = "Spin Seebeck effect, Thin films, Titanium-iron-antimony, Yttrium iron garnet",

author = "Poramed Wongjom and Chalothon Wongjom and Ekkarat Pongophas and Yingyot Infahsaeng and Wasan Maiaugree and Mati Horprathum and Chanunthorn Chananonnawathorn and Supree Pinitsoontorn and Harihara Ramamoorthy and Ratchanok Somphonsane and Wanchai Pijitrojana and Phan, {Thang Bach} and Sungkyun Park and Muntini, {Melania Suweni} and Tosawat Seetawan and Athorn Vora-ud",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2024",

month = may,

day = "30",

doi = "10.1016/j.tsf.2024.140363",

language = "English",

volume = "797",

journal = "Thin Solid Films",

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Wongjom, P, Wongjom, C, Pongophas, E, Infahsaeng, Y, Maiaugree, W, Horprathum, M, Chananonnawathorn, C, Pinitsoontorn, S, Ramamoorthy, H, Somphonsane, R, Pijitrojana, W, Phan, TB, Park, S, Muntini, MS, Seetawan, T & Vora-ud, A 2024, 'Spin Seebeck effect and large spin conversion in amorphous Fe₂TiSb/polycrystalline Y₃Fe₅O₁₂ thin films', Thin Solid Films, vol. 797, 140363. https://doi.org/10.1016/j.tsf.2024.140363

TY - JOUR

T1 - Spin Seebeck effect and large spin conversion in amorphous Fe2TiSb/polycrystalline Y3Fe5O12 thin films

AU - Wongjom, Poramed

AU - Wongjom, Chalothon

AU - Pongophas, Ekkarat

AU - Infahsaeng, Yingyot

AU - Maiaugree, Wasan

AU - Horprathum, Mati

AU - Chananonnawathorn, Chanunthorn

AU - Pinitsoontorn, Supree

AU - Ramamoorthy, Harihara

AU - Somphonsane, Ratchanok

AU - Pijitrojana, Wanchai

AU - Phan, Thang Bach

AU - Park, Sungkyun

AU - Muntini, Melania Suweni

AU - Seetawan, Tosawat

AU - Vora-ud, Athorn

PY - 2024/5/30

Y1 - 2024/5/30

N2 - This study investigates spin current generation in a Fe2TiSb/Y3Fe5O12 multi-layer thin film as prepared via the magnetron sputtering method. Comprehensive characterization techniques are employed to assess film properties, including X-ray diffraction, energy-dispersive X-ray spectroscopy, Scanning electron microscopy, and Vibrating sample magnetometer. The Y3Fe5O12 material exhibits a polycrystalline ferromagnetic insulator behavior, while the 20 nm-thick Fe2TiSb film displays small ferromagnetic metal properties with an amorphous structure. Spin current analysis utilizes the longitudinal spin Seebeck effect configuration, considering magnetic field and temperature dependencies and the results show that spin conversion within the Fe2TiSb/Y3Fe5O12 structure is influenced by both the spin Seebeck effect and the anomalous Nernst effect, resulting in an overall spin signal enhancement. The spin Seebeck coefficient of Fe2TiSb/Y3Fe5O12 was approximately 0.103 μV/K within a magnetic field of 300 mT.

AB - This study investigates spin current generation in a Fe2TiSb/Y3Fe5O12 multi-layer thin film as prepared via the magnetron sputtering method. Comprehensive characterization techniques are employed to assess film properties, including X-ray diffraction, energy-dispersive X-ray spectroscopy, Scanning electron microscopy, and Vibrating sample magnetometer. The Y3Fe5O12 material exhibits a polycrystalline ferromagnetic insulator behavior, while the 20 nm-thick Fe2TiSb film displays small ferromagnetic metal properties with an amorphous structure. Spin current analysis utilizes the longitudinal spin Seebeck effect configuration, considering magnetic field and temperature dependencies and the results show that spin conversion within the Fe2TiSb/Y3Fe5O12 structure is influenced by both the spin Seebeck effect and the anomalous Nernst effect, resulting in an overall spin signal enhancement. The spin Seebeck coefficient of Fe2TiSb/Y3Fe5O12 was approximately 0.103 μV/K within a magnetic field of 300 mT.

KW - Spin Seebeck effect

KW - Thin films

KW - Titanium-iron-antimony

KW - Yttrium iron garnet

UR - http://www.scopus.com/inward/record.url?scp=85191315545&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2024.140363

DO - 10.1016/j.tsf.2024.140363

M3 - Article

AN - SCOPUS:85191315545

SN - 0040-6090

VL - 797

JO - Thin Solid Films

JF - Thin Solid Films

M1 - 140363

ER -

Spin Seebeck effect and large spin conversion in amorphous Fe₂TiSb/polycrystalline Y₃Fe₅O₁₂ thin films

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