Publications (27)
Absence of Quantum-Metric-Induced Intrinsic Longitudinal Response
Ping Tang
Nonlinear charge transport in solids has emerged as a powerful probe of the quantum geometric properties of Bloch electrons. While the Berry curvature underlies the intrinsic anoma…
: A narrow gap 2D semiconductor with vacancy-induced semiconductor-metal transition
Ping Tang, Jun-Hui Yuan, Ya-Qian Song +3
Searching for novel two-dimensional (2D) materials is highly desired in the field of nanoelectronics. We here propose a new 2D crystal barium tri-arsenide () with…
Nonlocal Drag Thermoelectricity Generated by Ferroelectric Heterostructures
Ping Tang, Ken-ichi Uchida, Gerrit E. W. Bauer
The \textquotedblleft ferron\textquotedblright\ excitations of the electric-dipolar order carry energy as well as electric dipoles. Here we predict a nonlocal ferron drag effect in…
The Ferroelectric Point Contact
Ping Tang, Ryo Iguchi, Ken-ichi Uchida +1
We formulate a scattering theory of polarization and heat transport through a ballistic ferroelectric point contact. We predict a polarization current under either an electric fiel…
Emergence of Nontrivial Topological Magnon States in Skyrmionium Lattices with Zero Topological Charge
Xingen Zheng, Ping Tang, Xuejuan Liu +3
We predict the emergence of nontrivial topological magnon states in the skyrmionium lattice with zero topological charge. We propose the concept of weighted magnetic flux, which pr…
Electrical Injection and Transport of Coherent Magnons in Non-Collinear Antiferromagnets
Ping Tang, Gerrit E. W. Bauer
Non-collinear antiferromagnets (nAFMs) with a small net magnetic moment offer new opportunities for ultrafast spintronic devices, owing to unique physical properties. While in ferr…
Observation of ferron transport in ferroelectrics
Kaiwen Shen, Ping Tang, Xianzhe Chen +15
Ferroelectrics feature spontaneous electric dipolar order reconfigurable via electric fields. Recent theoretical studies of the collective excitations of this electric dipolar orde…
Thermoelectric response of a ferroelectric insulator
Ryo Iguchi, Takashi Teranishi, Sakyo Hirose +4
Thermoelectric effects enable the conversion between heat and electricity without moving parts. While conventionally associated with mobile charges, we report thermoelectricity cau…
Longitudinal Spin Hall Magnetoresistance from Spin Fluctuations
Ping Tang
Spin Hall magnetoresistance (SMR), the variation in resistance in a heavy metal (HM) with the magnetization orientation of an adjacent ferromagnet (FM), has been extensively studie…
Current-induced spin torques on single GdFeCo magnetic layers
David Céspedes-Berrocal, Heloïse Damas, Sébastien Petit-Watelot +16
Spintronics exploits spin-orbit coupling (SOC) to generate spin currents, spin torques, and, in the absence of inversion symmetry, Rashba, and Dzyaloshinskii-Moriya interactions (D…
Spin transport and dynamic properties of two-dimensional spin-momentum locked states
Ping Tang, Xiufeng Han, Shufeng Zhang
Materials with spin-momentum locked surface or interface states provide an interesting playground for studying physics and application of charge-spin current conversion. To charact…
SiftingGAN: Generating and Sifting Labeled Samples to Improve the Remote Sensing Image Scene Classification Baseline in vitro
Dongao Ma, Ping Tang, Lijun Zhao
Lack of annotated samples greatly restrains the direct application of deep learning in remote sensing image scene classification. Although researches have been done to tackle this…
Electron hopping induced phonon pumping in opto-mechanical molecular nanocavities
Yu Bai, Ilya Razdolski, Zhizi Guan +5
Plasmonic molecular nanojunctions exhibit opto-mechanical coupling at the nanoscale, enabling intertwined optical, vibrational and electronic phenomena. Here, we demonstrate plasmo…
The sliding phase transition in ferroelectric van der Waals bilayers
Ping Tang, Gerrit E. W. Bauer
We address the sliding thermodynamics of van der Waals-bonded bilayers by the continuum elasticity theory. We attribute the robustness of the ferroelectricity recently observed in…
Magnetism of two-dimensional magnets in the presence of random fields
Essa M. Ibrahim, Ping Tang, Shufeng Zhang
In low-dimensional magnets, thermal agitation and spatial disorders generate strong spin fluctuations that suppress the long-range magnetic ordering. We develop an analytical equat…
Role of Disorder in the Intrinsic Orbital Hall Effect
Ping Tang, Gerrit E. W. Bauer
We investigate the effect of random defect scattering on the orbital Hall effect by solving a quantum Boltzmann equation. Depending on the specific orbital textures, diffuse scatte…
Surface Ferron Excitations in Ferroelectrics and Their Directional Routing
Xi-Han Zhou, Chengyuan Cai, Ping Tang +4
The duality between the electric and magnetic dipoles inspires recent comparisons between ferronics and magnonics. Here we predict surface polarization waves or ``ferrons" in ferro…
Exchange Surface Spin Waves in Type-A van der Waals Antiferromagnets
Zhoujian Sun, Fuxiang Li, Gerrit E. W. Bauer +1
Surface spin waves in the short-wavelength regime enable ultrafast, nanoscale magnon-based devices. Here we report the emergence of surface spin-wave excitations within the bulk ma…
Multiferroic-like Quasiparticles in Ferroelectrics
Ping Tang, Gerrit E. W. Bauer
Multiferroics are materials with coexisting electric and magnetic orders that are of central importance for fundamental research and technological applications. Unfortunately, intr…
Excitations of the ferroelectric order
Ping Tang, Ryo Iguchi, Ken-ichi Uchida +1
We identify the bosonic excitations in ferroelectrics that carry electric dipoles from the phenomenological Landau-Ginzburg-Devonshire theory. The "ferron" quasi-particles emerge f…
Metasurface-based Terahertz Three-dimensional Holography Enabled by Physics-Informed Neural Network
Jingzhu Shao, Ping Tang, Borui Xu +4
Artificial intelligence has revolutionized optical device design, overcoming the efficiency bottlenecks of traditional methods. For holographic metasurfaces, conventional iterative…
Magnonics vs. Ferronics
Gerrit E. W. Bauer, Ping Tang, Ryo Iguchi +1
Magnons are the elementary excitations of the magnetic order that carry spin, momentum, and energy. Here we compare the magnon with the ferron, i.e. the elementary excitation of th…
Long distance magnon transport in the van der Waals antiferromagnet CrPS
Dennis K. de Wal, Arnaud Iwens, Tian Liu +3
We demonstrate the potential of van der Waals magnets for spintronic applications by reporting long-distance magnon spin transport in the electrically insulating antiferromagnet ch…
Electric Analog of Magnons in Order-Disorder Ferroelectrics
Ping Tang, Gerrit E. W. Bauer
We analyze the ``ferron" excitations in order-disorder ferroelectrics by a microscopic pseudo-spin model. We demonstrate that analogous to magnons, the quanta of spin waves in magn…
Critically Enhanced Magnon Transport in Low-dimensional Magnets
Ping Tang
Transport properties of (quasi)particles in condensed matter depend profoundly on the spatial dimension. Motivated by recent advances in growing ultrathin magnetic films and monola…
Spin-caloritronic signatures of soft magnons in bilayer CrSBr
Rob den Teuling, Ping Tang, Gerrit E. W. Bauer +1
Spin transport in magnetic insulators is often treated by assuming that magnons carry a fixed spin angular momentum of , which does not hold in general, however. Here we cal…
Magnon-Driven Magnetothermal Transport in Magnetic Multilayers
Ping Tang, Ken-ichi Uchida, Gerrit E. W. Bauer
All-solid-state nanoscale devices capable of efficiently controlling a heat flow are crucial for advanced thermal management technologies. Here we predict a magnon-driven magnetoth…