A high-temperature ferromagnetic topological insulating phase by proximity coupling
Abstract
Topological insulators are insulating materials that display conducting surface states protected by time-reversal symmetry(1,)2, wherein electron spins are locked to their momentum. This unique property opens up new opportunities for creating next-generation electronic, spintronic and quantum computation devices(3-5). Introducing ferromagnetic order into a topological insulator system without compromising its distinctive quantum coherent features could lead to the realization of several predicted physical phenomena(6,7). In particular, achieving robust long-range magnetic order at the surface of the topological insulator at specific locations without introducing spin-scattering centres could open up new possibilities for devices. Here we use spin-polarized neutron reflectivity experiments to demonstrate topologically enhanced interface magnetism by coupling a ferromagnetic insulator (EuS) to a topological insulator (Bi2Se3) in a bilayer system. This interfacial ferromagnetism persists up to room temperature, even though the ferromagnetic insulator is known to order ferromagnetically only at low temperatures (<17 K). The magnetism induced at the interface resulting from the large spin-orbit interaction and the spin-momentum locking of the topological insulator surface greatly enhances the magnetic ordering (Curie) temperature of this bilayer system. The ferromagnetism extends similar to 2 nm into the Bi2Se3 from the interface. Owing to the short-range nature of the ferromagnetic exchange interaction, the time-reversalmore »
- Authors:
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
- OSTI Identifier:
- 1274417
- DOE Contract Number:
- AC02-06CH11357
- Resource Type:
- Journal Article
- Journal Name:
- Nature (London)
- Additional Journal Information:
- Journal Volume: 533; Journal Issue: 7604; Journal ID: ISSN 0028-0836
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Katmis, Ferhat, Lauter, Valeria, Nogueira, Flavio S., Assaf, Badih A., Jamer, Michelle E., Wei, Peng, Satpati, Biswarup, Freeland, John W., Eremin, Ilya, Heiman, Don, Jarillo-Herrero, Pablo, and Moodera, Jagadeesh S. A high-temperature ferromagnetic topological insulating phase by proximity coupling. United States: N. p., 2016.
Web. doi:10.1038/nature17635.
Katmis, Ferhat, Lauter, Valeria, Nogueira, Flavio S., Assaf, Badih A., Jamer, Michelle E., Wei, Peng, Satpati, Biswarup, Freeland, John W., Eremin, Ilya, Heiman, Don, Jarillo-Herrero, Pablo, & Moodera, Jagadeesh S. A high-temperature ferromagnetic topological insulating phase by proximity coupling. United States. https://doi.org/10.1038/nature17635
Katmis, Ferhat, Lauter, Valeria, Nogueira, Flavio S., Assaf, Badih A., Jamer, Michelle E., Wei, Peng, Satpati, Biswarup, Freeland, John W., Eremin, Ilya, Heiman, Don, Jarillo-Herrero, Pablo, and Moodera, Jagadeesh S. 2016.
"A high-temperature ferromagnetic topological insulating phase by proximity coupling". United States. https://doi.org/10.1038/nature17635.
@article{osti_1274417,
title = {A high-temperature ferromagnetic topological insulating phase by proximity coupling},
author = {Katmis, Ferhat and Lauter, Valeria and Nogueira, Flavio S. and Assaf, Badih A. and Jamer, Michelle E. and Wei, Peng and Satpati, Biswarup and Freeland, John W. and Eremin, Ilya and Heiman, Don and Jarillo-Herrero, Pablo and Moodera, Jagadeesh S.},
abstractNote = {Topological insulators are insulating materials that display conducting surface states protected by time-reversal symmetry(1,)2, wherein electron spins are locked to their momentum. This unique property opens up new opportunities for creating next-generation electronic, spintronic and quantum computation devices(3-5). Introducing ferromagnetic order into a topological insulator system without compromising its distinctive quantum coherent features could lead to the realization of several predicted physical phenomena(6,7). In particular, achieving robust long-range magnetic order at the surface of the topological insulator at specific locations without introducing spin-scattering centres could open up new possibilities for devices. Here we use spin-polarized neutron reflectivity experiments to demonstrate topologically enhanced interface magnetism by coupling a ferromagnetic insulator (EuS) to a topological insulator (Bi2Se3) in a bilayer system. This interfacial ferromagnetism persists up to room temperature, even though the ferromagnetic insulator is known to order ferromagnetically only at low temperatures (<17 K). The magnetism induced at the interface resulting from the large spin-orbit interaction and the spin-momentum locking of the topological insulator surface greatly enhances the magnetic ordering (Curie) temperature of this bilayer system. The ferromagnetism extends similar to 2 nm into the Bi2Se3 from the interface. Owing to the short-range nature of the ferromagnetic exchange interaction, the time-reversal symmetry is broken only near the surface of a topological insulator, while leaving its bulk states unaffected. The topological magneto-electric response originating in such an engineered topological insulator(2,8) could allow efficient manipulation of the magnetization dynamics by an electric field, providing an energy-efficient topological control mechanism for future spin-based technologies.},
doi = {10.1038/nature17635},
url = {https://www.osti.gov/biblio/1274417},
journal = {Nature (London)},
issn = {0028-0836},
number = 7604,
volume = 533,
place = {United States},
year = {Mon May 09 00:00:00 EDT 2016},
month = {Mon May 09 00:00:00 EDT 2016}
}
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Interface effects on the magnetic-proximity-induced quantized Hall response in heterostructures based on three-dimensional topological insulators
journal, March 2019
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- Physical Review B, Vol. 99, Issue 11
Bulk transport properties of bismuth selenide thin films grown by magnetron sputtering approaching the two-dimensional limit
journal, September 2018
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- Journal of Applied Physics, Vol. 124, Issue 10
Coupling of magnetic orders in a 4f metal/oxide system
journal, January 2018
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- Journal of Materials Chemistry C, Vol. 6, Issue 37
Tunneling Planar Hall Effect in Topological Insulators: Spin-Valves and Amplifiers
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- arXiv
Robustness of topologically protected edge states in quantum walk experiments with neutral atoms
text, January 2016
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- arXiv
Van der Waals Engineering of Ferromagnetic Semiconductor Heterostructures for Spin and Valleytronics
text, January 2017
- Zhong, Ding; Seyler, Kyle L.; Linpeng, Xiayu
- arXiv
Dirac-Electrons-Mediated Magnetic Proximity Effect in Topological Insulator / Magnetic Insulator Heterostructures
text, January 2017
- Li, Mingda; Song, Qichen; Zhao, Weiwei
- arXiv
Gate-tunable black phosphorus spin valve with nanosecond spin lifetimes
text, January 2017
- Avsar, Ahmet; Tan, Jun You; Kurpas, Marcin
- arXiv
Above 400 K Robust Perpendicular Ferromagnetic Phase in a Topological Insulator
text, January 2017
- Tang, Chi; Chang, Cui-Zu; Zhao, Gejian
- arXiv
Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
text, January 2018
- Manchon, A.; Zelezný, J.; Miron, I. M.
- arXiv
Hard magnetic properties in nanoflake van der Waals Fe3GeTe2
text, January 2018
- Tan, Cheng; Lee, Jinhwan; Jung, Soon-Gil
- arXiv
Unconventional Planar Hall Effect in Exchange-Coupled Topological Insulator-Ferromagnetic Insulator Heterostructures
text, January 2018
- Rakhmilevich, David; Wang, Fei; Zhao, Weiwei
- arXiv
Intrinsic magnetic topological insulators in van der Waals layered MnBi$_2$Te$_4$-family materials
text, January 2018
- Li, Jiaheng; Li, Yang; Du, Shiqiao
- arXiv
Giant gate-controlled proximity magnetoresistance in semiconductor-based ferromagnetic/nonmagnetic bilayers
text, January 2018
- Takiguchi, Kosuke; Anh, Le Duc; Chiba, Takahiro
- arXiv
Large Anomalous Hall Effect in Topological Insulators with Proximitized Ferromagnetic Insulators
text, January 2019
- Mogi, Masataka; Nakajima, Taro; Ukleev, Victor
- arXiv
Topological phase transition induced by magnetic proximity effect in two dimensions
text, January 2019
- Zeng, Yijie; Wang, Luyang; Li, Song
- arXiv
Antiferromagnetic Topological Insulator MnBi2Te4: Synthesis and Magnetic properties
text, January 2019
- Li, Hao; Liu, Shengsheng; Liu, Chang
- arXiv
Carrier free long-range magnetism in Mo doped one quintuple layer Bi2Te3 and Sb2Te3
text, January 2019
- Zhang, Xiaodong; Zhu, Junyi
- arXiv
The study of magnetic topological semimetals by first principles calculations
text, January 2019
- Zou, Jinyu; He, Zhuoran; Xu, Gang
- arXiv
Van der Waals heterostructures for high-performance device applications: challenges and opportunities
text, January 2019
- Liang, Shi-Jun; Cheng, Bin; Cui, Xinyi
- arXiv
Ferromagnetic state above room temperature in a proximitized topological Dirac semimetal
text, January 2019
- Uchida, Masaki; Koretsune, Takashi; Sato, Shin
- arXiv
A New Magnetic Topological Quantum Material Candidate by Design
journal, April 2019
- Gui, Xin; Pletikosic, Ivo; Cao, Huibo
- ACS Central Science
Utilizing Chemical Intuition in the Search for New Quantum Materials
journal, May 2019
- Scholz, Tanja; Lotsch, Bettina V.
- ACS Central Science, Vol. 5, Issue 5
Emerging two-dimensional ferromagnetism in silicene materials
journal, April 2018
- Tokmachev, Andrey M.; Averyanov, Dmitry V.; Parfenov, Oleg E.
- Nature Communications, Vol. 9, Issue 1
Probing the magnetic profile of diluted magnetic semiconductors using polarized neutron reflectivity
journal, July 2017
- Luo, X.; Tseng, L. T.; Lee, W. T.
- Scientific Reports, Vol. 7, Issue 1
Dirac gap opening and Dirac-fermion-mediated magnetic coupling in antiferromagnetic Gd-doped topological insulators and their manipulation by synchrotron radiation
journal, March 2019
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- Scientific Reports, Vol. 9, Issue 1
Search for ferromagnetic order in overdoped copper-oxide superconductors
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- Scientific Reports, Vol. 7, Issue 1
Strain-induced high-temperature perovskite ferromagnetic insulator
journal, March 2018
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- Proceedings of the National Academy of Sciences, Vol. 115, Issue 12
Magnetization switching using topological surface states
journal, August 2019
- Li, Peng; Kally, James; Zhang, Steven S. -L.
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Weak Localization and Antilocalization in Topological Materials with Impurity Spin-Orbit Interactions
journal, July 2017
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Van der Waals Engineering of Ferromagnetic Semiconductor Heterostructures for Spin and Valleytronics
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- Zhong, Ding; Seyler, Kyle L.; Linpeng, Xiayu
- arXiv
Giant Valley Splitting in Monolayer WS2 by Magnetic Proximity Effect
text, January 2019
- Norden, Tenzin; Zhao, Chuan; Zhang, Peiyao
- arXiv