Spintronic Physical Unclonable Functions Based on Field‐Free Spin–Orbit‐Torque Switching
Abstract: Physical unclonable function (PUFs) utilize inherent random physical variations of solid‐state devices and are a core ingredient of hardware security primitives. PUFs promise more robust information security than that provided by the conventional software‐based approaches. While silicon‐ and memristor‐based PUFs are advancing, their reliability and scalability require further improvements. These are currently limited by output fluctuations and associated additional peripherals. Here, highly reliable spintronic PUFs that exploit field‐free spin–orbit‐torque switching in IrMn/CoFeB/Ta/CoFeB structures are demonstrated. It is shown that the stochastic switching polarity of the perpendicular magnetization of the top CoFeB can be achieved by manipulating the exchange bias directions of the bottom IrMn/CoFeB. This serves as an entropy source for the spintronic PUF, which is characterized by high entropy, uniqueness, reconfigurability, and digital output. Furthermore, the device ensures a zero bit‐error‐rate under repetitive operations and robustness against external magnetic fields, and offers scalable and energy‐efficient device implementations.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Spintronic Physical Unclonable Functions Based on Field‐Free Spin–Orbit‐Torque Switching ; day:17 ; month:10 ; year:2022 ; extent:9
Advanced materials ; (17.10.2022) (gesamt 9)
- Creator
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Lee, Soogil
Kang, Jaimin
Kim, Jeong‐Mok
Kim, Namhee
Han, Donghyeon
Lee, Taekhyeon
Ko, San
Yang, Jiseok
Lee, Sanghwa
Lee, Sungjun
Koh, Daekyu
Kang, Min‐Gu
Lee, Jisung
Noh, Sujung
Lee, Hansaem
Kwon, JoonHyun
Baek, Seung‐heon Chris
Kim, Kab‐Jin
Park, Byong‐Guk
- DOI
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10.1002/adma.202203558
- URN
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urn:nbn:de:101:1-2022101815235240325725
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:22 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Lee, Soogil
- Kang, Jaimin
- Kim, Jeong‐Mok
- Kim, Namhee
- Han, Donghyeon
- Lee, Taekhyeon
- Ko, San
- Yang, Jiseok
- Lee, Sanghwa
- Lee, Sungjun
- Koh, Daekyu
- Kang, Min‐Gu
- Lee, Jisung
- Noh, Sujung
- Lee, Hansaem
- Kwon, JoonHyun
- Baek, Seung‐heon Chris
- Kim, Kab‐Jin
- Park, Byong‐Guk
Other Objects (12)
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Purely Electrical Controllable Spin–Orbit Torque‐Based Reconfigurable Physically Unclonable Functions
Spin-orbit torque switching of an antiferromagnetic metallic heterostructure
Oscillatory spin-orbit torque switching induced by field-like torques
Spin–Orbit Torque Switching in an All‐Van der Waals Heterostructure
Improved Robustness against Magnetic Field in Spin–Orbit‐Torque‐Based Physical Unclonable Functions through Write‐Back Operation
Electric Field Control of Spin–Orbit Torque Magnetization Switching in a Spin–Orbit Ferromagnet Single Layer
Magnetization switching process by dual spin-orbit torque in interlayer exchange-coupled systems
Field-free spin–orbit torque switching in ferromagnetic trilayers at sub-ns timescales
Reconfigurable spintronic logic gate utilizing precessional magnetization switching
Current Induced Field‐Free Switching in a Magnetic Insulator with Enhanced Spin‐Orbit Torque
Topological transformation of synthetic ferromagnetic skyrmions: thermal assisted switching of helicity by spin-orbit torque
Optical Verification of Physically Unclonable Function Devices Based on Spin‐Orbit Torque Switching
Purely Electrical Controllable Spin–Orbit Torque‐Based Reconfigurable Physically Unclonable Functions
Spin-orbit torque switching of an antiferromagnetic metallic heterostructure
Oscillatory spin-orbit torque switching induced by field-like torques
Spin–Orbit Torque Switching in an All‐Van der Waals Heterostructure
Improved Robustness against Magnetic Field in Spin–Orbit‐Torque‐Based Physical Unclonable Functions through Write‐Back Operation
Electric Field Control of Spin–Orbit Torque Magnetization Switching in a Spin–Orbit Ferromagnet Single Layer
Magnetization switching process by dual spin-orbit torque in interlayer exchange-coupled systems
Field-free spin–orbit torque switching in ferromagnetic trilayers at sub-ns timescales
Reconfigurable spintronic logic gate utilizing precessional magnetization switching
Current Induced Field‐Free Switching in a Magnetic Insulator with Enhanced Spin‐Orbit Torque
Topological transformation of synthetic ferromagnetic skyrmions: thermal assisted switching of helicity by spin-orbit torque
Optical Verification of Physically Unclonable Function Devices Based on Spin‐Orbit Torque Switching
Purely Electrical Controllable Spin–Orbit Torque‐Based Reconfigurable Physically Unclonable Functions
Spin-orbit torque switching of an antiferromagnetic metallic heterostructure
Oscillatory spin-orbit torque switching induced by field-like torques
Spin–Orbit Torque Switching in an All‐Van der Waals Heterostructure
Improved Robustness against Magnetic Field in Spin–Orbit‐Torque‐Based Physical Unclonable Functions through Write‐Back Operation
Electric Field Control of Spin–Orbit Torque Magnetization Switching in a Spin–Orbit Ferromagnet Single Layer
Magnetization switching process by dual spin-orbit torque in interlayer exchange-coupled systems
Field-free spin–orbit torque switching in ferromagnetic trilayers at sub-ns timescales
Reconfigurable spintronic logic gate utilizing precessional magnetization switching
Current Induced Field‐Free Switching in a Magnetic Insulator with Enhanced Spin‐Orbit Torque