Terahertz emission from spin to charge conversion in type-II dirac semimetal PtTe2/ferromagnet heterostructure

Yun Sun; Peiyuan Yu; Ying Zhang; Yong Wu; Jie Zhang; Tianxiao Nie

Results in Physics (Apr 2024)

Terahertz emission from spin to charge conversion in type-II dirac semimetal PtTe2/ferromagnet heterostructure

Yun Sun,
Peiyuan Yu,
Ying Zhang,
Yong Wu,
Jie Zhang,
Tianxiao Nie

Affiliations

Yun Sun: Fert Beijing Institute, MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China; National Key Lab of Spintronics, International Innovation Institute, Beihang University, Hangzhou, China
Peiyuan Yu: Fert Beijing Institute, MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China; National Key Lab of Spintronics, International Innovation Institute, Beihang University, Hangzhou, China
Ying Zhang: Fert Beijing Institute, MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China; National Key Lab of Spintronics, International Innovation Institute, Beihang University, Hangzhou, China
Yong Wu: School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; Corresponding authors at: Fert Beijing Institute, MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China.
Jie Zhang: Fert Beijing Institute, MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China; National Key Lab of Spintronics, International Innovation Institute, Beihang University, Hangzhou, China; Corresponding authors at: Fert Beijing Institute, MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China.
Tianxiao Nie: Fert Beijing Institute, MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China; National Key Lab of Spintronics, International Innovation Institute, Beihang University, Hangzhou, China; Corresponding authors at: Fert Beijing Institute, MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University, Beijing 100191, China.

Journal volume & issue: Vol. 59
p. 107592

Abstract

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An emerging type-II Dirac semimetal PtTe2 exhibits a large potential for spintronic devices due to the high conductivity, high mobility, and good air stability. However, there are few reports on the terahertz emission phenomena in PtTe2 films, which may prohibit the practical application in the future. Here, we successfully prepared high quality two-dimensional (2D) materials PtTe2 and combined it with ferromagnet Fe into heterostructure. Then the spintronic terahertz (THz) emission characteristics of PtTe2/Fe heterostructure excited by ultrafast femtosecond laser were investigated. Our work provides a novel material strategy for spintronic devices, paving the way for researching next-generation optospintronic devices.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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