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Recent studies on the magneto-transport properties of topological insulators (TI) have attracted great attention due to the rich spin-orbit physics and promising applications in spintronic devices. Particularly the strongly spin-moment…

Materials Science · Physics 2017-08-23 Jiahao Han , A. Richardella , Saima Siddiqui , Joseph Finley , N. Samarth , Luqiao Liu

Topological insulators (TIs) are a promising class of materials for manipulating the magnetization of an adjacent ferromagnet (FM) through the spin-orbit torque (SOT) mechanism. However, current studies combining TIs with conventional FMs…

The emergent two-dimensional (2D) ferromagnetic materials with unique magnetic properties have endowed great potential for next-generation spintronic devices with extraordinary merits of high flexibility, easy controllability, and high…

Magnetic devices are a leading contender for implementing memory and logic technologies that are nonvolatile, that can scale to high density and high speed, and that do not suffer wear-out. However, widespread applications of magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 A. R. Mellnik , J. S. Lee , A. Richardella , J. L. Grab , P. J. Mintun , M. H. Fischer , A. Vaezi , A. Manchon , E. -A. Kim , N. Samarth , D. C. Ralph

Spin-orbit torques (SOTs) from transition metal oxides (TMOs) in conjunction with magnetic materials have recently attracted tremendous attention for realizing high-efficient spintronic devices. SrRuO3 is a promising candidate among TMOs…

Materials Science · Physics 2024-03-04 Sheng Li , Bin Lao , Zengxing Lu , Xuan Zheng , Kenan Zhao , Liguang Gong , Tao Tang , Keyi Wu , Run-Wei Li , Zhiming Wang

Spin-orbit torque (SOT) magnetization switching of ferromagnets with large perpendicular magnetic anisotropy has a great potential for the next-generation non-volatile magnetoresistive random-access memory (MRAM). It requires a…

Mesoscale and Nanoscale Physics · Physics 2022-03-08 Tuo Fan , Nguyen Huynh Duy Khang , Soichiro Nakano , Pham Nam Hai

Topological insulators (TI) and magnetic topological insulators (MTI) can apply highly efficient spin-orbit torque (SOT) and manipulate the magnetization with their unique topological surface states with ultra-high efficiency. Here, we…

Spin-orbit-torque (SOT) switching using the spin Hall effect (SHE) in heavy metals and topological insulators (TIs) has great potential for ultra-low power magnetoresistive random-access memory (MRAM). To be competitive with conventional…

Materials Science · Physics 2018-09-20 Nguyen Huynh Duy Khang , Yugo Ueda , Pham Nam Hai

Electric-field manipulation of magnetic order has proved of both fundamental and technological importance in spintronic devices. So far, electric-field control of ferromagnetism, magnetization and magnetic anisotropy has been explored in…

The spin-orbit torque (SOT) arising from materials with large spin-orbit coupling promises a path for ultra-low power and fast magnetic-based storage and computational devices. We investigated the SOT from magnetron-sputtered BixSe(1-x)…

Spin-orbit torque (SOT) enables efficient electrical control of magnetization, offering a pathway towards low-power spintronic devices. Magnetic topological insulators (TIs), with spin-momentum-locked surface states and intrinsic…

Mesoscale and Nanoscale Physics · Physics 2026-05-21 Ling-Jie Zhou , Deyi Zhuo , Han Tay , Zi-Jie Yan , Pu Xiao , Xiaoda Liu , Bomin Zhang , Cui-Zu Chang

The combination of magnetism and topology in magnetic topological insulators (MTIs) has led to unprecedented advancements of time reversal symmetry-breaking topological quantum physics in the past decade. Compared with the uniform films,…

Mesoscale and Nanoscale Physics · Physics 2021-02-26 Qi Yao , Yuchen Ji , Peng Chen , Qing-Lin He , Xufeng Kou

Spin-orbit torque (SOT) provides an efficient way to achieve charge-to-spin conversion and can switch perpendicular magnetization, which is essential for designing novel energy-efficient spintronic devices. An out-of-plane SOT could…

Materials Science · Physics 2023-01-02 Xiaomiao Yin , Lujun Wei , Pai Liu , Jiajv Yang , Pengchao Zhang , JinCheng Peng , Fei Huang , Ruobai Liu , Jun Du , Yong Pu

Three-dimensional (3D) topological insulators are known for their strong spin-orbit coupling and the existence of spin-textured topological surface states which could be potentially exploited for spintronics. Here, we investigate spin…

Mesoscale and Nanoscale Physics · Physics 2014-07-31 Mahdi Jamali , Joon Sue Lee , Yang Lv , Zhengyang Zhao , Nitin Samarth , Jian-Ping Wang

Emerging wide varieties of the two-dimensional (2D) van der Waals (vdW) magnets with atomically thin and smooth interfaces holds great promise for next-generation spintronic devices. However, due to the lower Curie temperature of the vdW 2D…

Spin-based electronics in topological insulators (TIs) is favored by the long spin coherence1,2 and consequently fault-tolerant information storage. Magnetically doped TIs are ferromagnetic up to 13 K,3 well below any practical operating…

Current-induced control of magnetization in ferromagnets using spin-orbit torque (SOT) has drawn attention as a new mechanism for fast and energy efficient magnetic memory devices. Energy-efficient spintronic devices require a spin-current…

Spatial confinement of electronic topological surface states (TSS) in topological insulators poses a formidable challenge because TSS are protected by time-reversal symmetry. In previous works formation of a gap in the electronic spectrum…

The spin-orbit torques (SOTs) generated from topological insulators (TIs) have gained increasing attention in recent years. These TIs, which are typically formed by epitaxially grown chalcogenides, possess extremely high SOT efficiencies…

Materials Science · Physics 2020-02-18 Tian-Yue Chen , Cheng-Wei Peng , Tsung-Yu Tsai , Wei-Bang Liao , Chun-Te Wu , Hung-Wei Yen , Chi-Feng Pai

We investigate spin-charge conversion phenomena in hybrid structures of topological insulator (TI) thin films and magnetic insulators. We find an anisotropic inverse spin-galvanic effect (ISGE) that yields a highly tunable spin-orbit torque…

Mesoscale and Nanoscale Physics · Physics 2020-11-11 Ali G. Moghaddam , Alireza Qaiumzadeh , Anna Dyrdał , Jamal Berakdar
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