209 citations · 1.2k across the 21 of their papers we have counts for
21 papers
Disorder-Induced Suppression of Antiferromagnetic Magnon Transport in Cr2O3
Josiah Keagy, Haoyu Liu, Junyu Tang +5
We explore the impact of spin disorder associated with structural defects on antiferromagnetic magnon transport by probing the spin-flop transition of Cr2O3 using spin Seebeck effe…
Confinement-Induced Chiral Edge Channel Interaction in Quantum Anomalous Hall Insulators
Ling-Jie Zhou, Ruobing Mei, Yi-Fan Zhao +8
In quantum anomalous Hall (QAH) insulators, the interior is insulating but electrons can travel with zero resistance along one-dimensional conducting paths known as chiral edge cha…
Electrical Switching of the Edge Current Chirality in Quantum Anomalous Hall Insulators
Wei Yuan, Ling-Jie Zhou, Kaijie Yang +9
A quantum anomalous Hall (QAH) insulator is a topological state of matter, in which the interior is insulating but electrical current flows along the edges of the sample, in either…
Evolution of Dopant-Concentration-Induced Magnetic Exchange Interaction in Topological Insulator Thin Films
Fei Wang, Yi-Fan Zhao, Zijie Yan +6
Two essential ingredients for the quantum anomalous Hall (QAH) effect, i.e. topological and magnetic orders, can be combined by doping magnetic ions into a topological insulator (T…
First and second order magnetic anisotropy and damping of europium iron garnet under high strain
Victor H. Ortiz, Bassim Arkook, Junxue Li +8
Understanding and tailoring static and dynamic properties of magnetic insulator thin films is important for spintronic device applications. Here, we grow atomically flat epitaxial…
Observation of magnon-polarons in a uniaxial antiferromagnetic insulator
Junxue Li, Haakon T. Simensen, Derek Reitz +6
Magnon-polarons, a type of hybridized excitations between magnons and phonons, were first reported in yttrium iron garnet as anomalies in the spin Seebeck effect responses. Here we…
Spin Seebeck Effect near the Antiferromagnetic Spin-Flop Transition
Derek Reitz, Junxue Li, Wei Yuan +2
We develop a low-temperature, long-wavelength theory for the interfacial spin Seebeck effect (SSE) in easy-axis antiferromagnets. The field-induced spin-flop (SF) transition of Née…
Observation of Interfacial Antiferromagnetic Coupling between Magnetic Topological Insulator and Antiferromagnetic Insulator
Fei Wang, Di Xiao, Wei Yuan +13
Inducing magnetic orders in a topological insulator (TI) to break its time reversal symmetry has been predicted to reveal many exotic topological quantum phenomena. The manipulatio…
Dirac-Surface-State Modulated Spin Dynamics in a Ferrimagnetic Insulator at Room Temperature
Chi Tang, Qi Song, Cui-Zu Chang +10
This work demonstrates dramatically modified spin dynamics of magnetic insulator (MI) by the spin-momentum locked Dirac surface states of the adjacent topological insulator (TI) wh…
Experimental Signatures of Spin Superfluid Ground State in Canted Antiferromagnet Cr2O3 via Nonlocal Spin Transport
Wei Yuan, Qiong Zhu, Tang Su +9
Spin superfluid is a novel emerging quantum matter arising from the Bose-Einstein condensate (BEC) of spin-1 bosons. We demonstrate the spin superfluid ground state in canted antif…
Role of La doping for Topological Hall Effect in Epitaxial EuO Films
Yu Yun, Yang Ma, Tang Su +6
We report the critical role of La doping in the topological Hall effect observed in LaxEu1-xO thin films (~ 50 nm) grown by molecular beam epitaxy. When the La doping exceeds 0.036…
The Role of Oxygen in Ionic Liquid Gating on 2D Cr2Ge2Te6: a Non-Oxide Material
Yangyang Chen, Wenyu Xing, Xirui Wang +10
Ionic liquid gating can markedly modulate the materials' carrier density so as to induce metallization, superconductivity, and quantum phase transitions. One of the main issues is…
Observation of long phase-coherence length in epitaxial La-doped CdO thin films
Yu Yun, Yang Ma, Songsheng Tao +9
The search for long electron phase coherence length, which is the length that an electron can keep its quantum wave-like properties, has attracted considerable interest in the last…
Probe of Spin Dynamics in Superconducting NbN Thin Films via Spin Pumping
Yunyan Yao, Qi Song, Yota Takamura +7
The emerging field of superconductor (SC) spintronics has attracted intensive attentions recently. Many fantastic spin dependent properties in SC have been discovered, including th…
Electric Field Effect in Multilayer Cr2Ge2Te6: a Ferromagnetic Two-Dimensional Material
Wenyu Xing, Yangyang Chen, Patrick M. Odenthal +10
The emergence of two-dimensional (2D) materials has attracted a great deal of attention due to their fascinating physical properties and potential applications for future nanoelect…
Spin Injection and Inverse Edelstein Effect in the Surface States of Topological Kondo Insulator SmB6
Qi Song, Jian Mi, Dan Zhao +11
There has been considerable interest in exploiting the spin degrees of freedom of electrons for potential information storage and computing technologies. Topological insulators (TI…
Positive Exchange Bias between Permalloy and Twined (10-10)-Cr2O3 Films
Wei Yuan, Tianyu Wang, Tang Su +4
We report the discovery of a positive exchange bias between Ni80Fe20 (Py) and twined (10-10)-Cr2O3 film near its blocking temperature (TB) when it is cooled in an in-plane magnetic…
Observation of Inverse Edelstein Effect in Rashba-Split 2DEG between SrTiO3 and LaAlO3 at Room Temperature
Qi Song, Hongrui Zhang, Tang Su +6
The Rashba physics has been intensively studied in the field of spin orbitronics, for the purpose of searching novel physical properties and the FM magnetization switching for tech…
Crystal Structure Manipulation of the Exchange Bias in an Antiferromagnetic Film
Wei Yuan, Tang Su, Qi Song +8
Exchange bias is one of the most extensively studied phenomena in magnetism, since it exerts a unidirectional anisotropy to a ferromagnet (FM) when coupled to an antiferromagnet (A…
Experimental Investigation of Temperature-Dependent Gilbert Damping in Permalloy Thin Films
Yuelei Zhao, Qi Song, See-Hun Yang +5
The Gilbert damping of ferromagnetic materials is arguably the most important but least understood phenomenological parameter that dictates real-time magnetization dynamics. Unders…
Epitaxial growth and properties of La0.7Sr0.3MnO3 thin films with micrometer wide atomic terraces
Wei Yuan, Yuelei Zhao, Chi Tang +4
La0.7Sr0.3MnO3 (LSMO) films with extraordinarily wide atomic terraces are epitaxially grown on SrTiO3 (100) substrates by pulsed laser deposition. Atomic force microscopy measureme…