54 citations · 135 across the 13 of their papers we have counts for
15 papers
Effects of Longitudinal Spin Current Density Gradient on Spin-Orbit Torque Switching of Perpendicular Magnetization
Guowen Gong, Qianbiao Liu, Lijun Zhu
It has remained a critical open question as to whether a longitudinal spin current gradient (e.g., due to a gradient in the thickness, composition, or width) can replace the longit…
Demonstration of room-temperature, magnetic-field-free, and ultralow-power spin-orbit torque logic device based on composition-uniform van der Waals magnet Fe3GaTe2
Zhengxiao Li, Qianbiao Liu, Wenliang Zhu +1
Van der Waals magnets have received blooming interest in material science and spintronics for the advantages of low magnetization, flexible stacking, strong tunability, and danglin…
Initialization-free ultralow-power programmable spin-orbit torque logic devices enabled by chirally asymmetric switching
Qianbiao Liu, Lijun Zhu
Spin logic is of great interest for the development of high-performance, non-Von Neumann artificial intelligence chips. Of particular advantage is the programmable spin-orbit torqu…
Universal scaling of the Anomalous Hall voltage of magnetic layer with the adjacent conducting layer
Zhihao Yan, Qianbiao Liu, Zhengxiao Li +1
The anomalous Hall voltage of magnetic heterostructures plays a key role as the indicator for the magnetization state and its interplay with a variety of spintronic effects. In thi…
Dominant spin Hall torque and negligible orbital Hall torque in α-W/ferromagnet heterostructures with artifacts-free angular momentum detectors
Taiyang Zhang, Lujun Zhu, Qianbiao Liu +1
α-phased W was theoretically predicted to have a negative spin Hall conductivity and a positive orbital Hall conductivity at the same time, leaving the physical origin of the curre…
Enhancing z spin generation in trivial spin Hall materials for scalable, energy-efficient, field-free, complete spin-orbit torque switching applications
Qianbiao Liu, Lijun Zhu
Despite the remarkable efforts in the past two decades, it has remained a major challenge to achieve switching of perpendicularly magnetized spin-orbit torque devices in a scalable…
Absence of orbital current torque in Ta/ferromagnet bilayers
Qianbiao Liu, Lijun Zhu
It has become a heated debate as to whether the orbital Hall effect of a material could generate a non-local orbital current and a non-zero spin-orbit torque on an adjacent magneti…
Physics Origin of Universal Unusual Magnetoresistance
Lijun Zhu, Qianbiao Liu, Xiangrong Wang
The discovery of the unusual magnetoresistance (UMR) during the rotation of magnetization in the plane perpendicular to the electric current, which has been typically attributed to…
Efficient generation of out-of-plane polarized spin current in polycrystalline heavy metal devices with broken electric symmetries
Qianbiao Liu, Xin Lin, Ariel Shaked +3
Spin currents of perpendicularly polarized spins (z spins) by an in-plane charge current have received blooming interest for the potential in energy-efficient spin-orbit torque swi…
Strongly asymmetric magnetization switching and programmable complete Boolean logic enabled by long-range intralayer Dzyaloshinskii-Moriya interaction
Qianbiao Liu, Long Liu, Guozhong Xing +1
Electrical switching of magnetization is central to spintronics. Despite the enormous efforts on the spin torques and the Dzyaloshinskii-Moriya interaction (DMI) effects, some fund…
Giant coercivity, resistivity upturn, and anomalous Hall effect in ferrimagnetic FeTb
Lijun Zhu, Lujun Zhu, Qianbiao Liu +1
Despite the blooming interest, the transition-metal rare-earth ferrimagnets have not been comprehensively understood in terms of their coercivity and transport properties. Here, we…
Current-induced perpendicular effective magnetic field in magnetic heterostructures
Qianbiao Liu, Lijun Zhu
Generation of perpendicular effective magnetic field or perpendicular spins (σz) is central for the development of energy-efficient, scalable, and external-magnetic-field-free spin…
Strong Spin-Orbit Torque Induced by the Intrinsic Spin Hall Effect in Cr1-xPtx
Qianbiao Liu, Jingwei Li, Lujun Zhu +3
We report on a spin-orbit torque study of the spin current generation in Cr1-xPtx alloy, using the light 3d ferromagnetic Co as the spin current detector. We find that the dampingl…
Giant bulk spin-orbit torque and efficient electrical switching in single ferrimagnetic FeTb layers with strong perpendicular magnetic anisotropy
Qianbiao Liu, Lijun Zhu, Xiyue S. Zhang +2
Efficient manipulation of antiferromagnetically coupled materials that are integration-friendly and have strong perpendicular magnetic anisotropy (PMA) is of great interest for low…
Perpendicularly magnetized YIG films with small Gilbert damping constant and anomalous spin transport properties
Qianbiao Liu, Kangkang Meng, Zedong Xu +4
The Y3Fe5O12 (YIG) films with perpendicular magnetic anisotropy (PMA) have recently attracted a great deal of attention for spintronics applications. Here, we report the induced PM…