195 citations · 1.6k across the 30 of their papers we have counts for
30 papers
Gate-tunable electronic properties of epitaxial Bi (111) films using a printable hexagonal boron nitride ionogel
Jagannath Jena, Heather E. Kurtz, Siddhesh Ambhire +9
Achieving effective electrostatic control of carrier transport in semimetals remains challenging due to strong screening and multiband effects. We report efficient low voltage top…
Proximity-induced nonlinear magnetoresistances on topological insulators
M. Mehraeen, Steven S. -L. Zhang
We employ quadratic-response Kubo formulas to investigate the nonlinear magnetotransport in bilayers composed of a topological insulator and a magnetic insulator, and predict both…
Magnetoresistive detection of perpendicular switching in a magnetic insulator
Silvia Damerio, Achintya Sunil, M. Mehraeen +2
Spintronics offers promising routes for efficient memory, logic, and computing technologies. The central challenge in spintronics is electrically manipulating and detecting magneti…
Unidirectional Magnetoresistance in Antiferromagnet/Heavy-metal bilayers
Soho Shim, M. Mehraeen, Joseph Sklenar +6
The interplay between electronic transport and antiferromagnetic order has attracted a surge of interest as recent studies have shown that a moderate change in the spin orientation…
Spin anomalous-Hall unidirectional magnetoresistance
M. Mehraeen, Steven S. -L. Zhang
We predict a spin anomalous-Hall unidirectional magnetoresistance (AH-UMR) in conducting bilayers composed of a ferromagnetic layer and a nonmagnetic layer, which does $\textit{not…
Tunable spin-charge conversion in class-I topological Dirac semimetals
Rui-Hao Li, Pengtao Shen, Steven S. -L. Zhang
We theoretically demonstrate that class-I topological Dirac semimetals (TDSMs) can provide a platform for realizing both electrically and magnetically tunable spin-charge conversio…
Giant Topological Hall Effect in van der Waals Heterostructures of CrTe2/Bi2Te3
Xiaoqian Zhang, Siddhesh C. Ambhire, Qiangsheng Lu +11
Discoveries of interfacial topological Hall effect (THE) provide an ideal platform for exploring physics arising from the interplay between topology and magnetism. The interfacial…
Quantum unidirectional magnetoresistance
M. Mehraeen, Pengtao Shen, Steven S. -L. Zhang
We predict unidirectional magnetoresistance effects arising in a bilayer composed of a nonmagnetic metal and a ferromagnetic insulator, whereby both longitudinal and transverse res…
Large Magneto-Electric Resistance in the Topological Dirac Semimetal alpha Sn
Yuejie Zhang, Vijaysankar Kalappattil, Chuanpu Liu +6
The spin-momentum locking of surface states in topological quantum materials can produce a resistance that scales linearly with magnetic and electric fields. Such a bilinear magnet…
Magnetism and Spin Dynamics in Room-Temperature van der Waals Magnet FeGeTe
Laith Alahmed, Bhuwan Nepal, Juan Macy +12
Two-dimensional (2D) van der Waals (vdWs) materials have gathered a lot of attention recently. However, the majority of these materials have Curie temperatures that are well below…
Topological Hall Effect in a Topological Insulator Interfaced with a Magnetic Insulator
Peng Li, Jinjun Ding, Steven S. -L. Zhang +13
A topological insulator (TI) interfaced with a magnetic insulator (MI) may host an anomalous Hall effect (AHE), a quantum AHE, and a topological Hall effect (THE). Recent studies,…
Voltage control of magnon spin currents in antiferromagnetic Cr2O3
Changjiang Liu, Yongming Luo, Deshun Hong +6
Voltage-controlled spintronic devices utilizing the spin degree of freedom are desirable for future applications, and may allow energy-efficient information processing. Pure spin c…
Nonlinear Hall effect in Weyl semimetals induced by chiral anomaly
Rui-Hao Li, Olle G. Heinonen, Anton A. Burkov +1
We predict a nonlinear Hall effect in certain Weyl semimetals with broken inversion symmetry. When the energy dispersions about pairs of Weyl nodes are skewed -- the Weyl cones are…
Uniaxial Strain-Induced Anisotropic Charge Transfer in Contact Electrification
Yuliang Chen, Ying Zhang, Liang He +1
Even though contact electrification has been studied for a long time, the mechanism of charge transfer still remains elusive. Most of previous reports only focus on the driving for…
Distinguishing antiferromagnetic spin sublattices via the spin Seebeck effect
Yongming Luo, Changjiang Liu, Hilal Saglam +7
Antiferromagnets are beneficial for future spintronic applications due to their zero magnetic moment and ultrafast dynamics. But gaining direct access to their antiferromagnetic or…
Nonlinear planar Hall effect
Pan He, Steven S. -L. Zhang, Dapeng Zhu +4
An intriguing property of three-dimensional (3D) topological insulator (TI) is the existence of surface states with spin-momentum locking, which offers a new frontier of exploratio…
Spin-to-charge conversion in magnetic Weyl semimetals
Steven S. -L. Zhang, Anton A. Burkov, Ivar Martin +1
Weyl semimetals (WSMs) are a newly discovered class of quantum materials which can host a number of exotic bulk transport properties, such as the chiral magnetic effect, negative m…
Giant anisotropy of Gilbert damping in epitaxial CoFe films
Yi Li, Fanlong Zeng, Steven S. -L. Zhang +9
Tailoring Gilbert damping of metallic ferromagnetic thin films is one of the central interests in spintronics applications. Here we report a giant Gilbert damping anisotropy in epi…
Theory of bilinear magneto-electric resistance from topological-insulator surface states
Steven S. -L. Zhang, Giovanni Vignale
We theoretically investigate a new kind of nonlinear magnetoresistance on the surface of three-dimensional topological insulators (TIs). At variance with the unidirectional magneto…
Observation of out-of-plane spin texture in a SrTiO3 (111) two-dimensional electron gas
Pan He, S. McKeown Walker, Steven S. -L. Zhang +9
We explore the second order bilinear magnetoelectric resistance (BMER) effect in the d-electron-based two-dimensional electron gas (2DEG) at the SrTiO3 (111) surface. We find an ev…
Chiral surface and edge plasmons in ferromagnetic conductors
Steven S. -L. Zhang, Giovanni Vignale
The recently introduced concept of "surface Berry plasmons" is studied in the concrete instance of a ferromagnetic conductor in which the Berry curvature, generated by spin-orbit (…
Topological Hall effect in diffusive ferromagnetic thin films with spin-flip scattering
Steven S. -L. Zhang, Olle Heinonen
We study the topological Hall effect in a diffusive ferromagnetic metal thin film by solving a Boltzmann transport equation in the presence of spin-flip scattering. A generalized s…
Tailoring Magnetic Skyrmions by Geometric Confinement of Magnetic Structures
Steven S. -L. Zhang, C. Phatak, A. K. Petford-Long +1
Nanoscale magnetic skyrmions have interesting static and transport properties that make them candidates for future spintronic devices. Control and manipulation of the size and beha…
Bilinear magneto-electric resistance as a probe of three-dimensional spin texture in topological surface states
Pan He, Steven S. -L. Zhang, Dapeng Zhu +5
Surface states of three-dimensional topological insulators exhibit the phenomenon of spin-momentum locking, whereby the orientation of an electron spin is determined by its momentu…